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Home >> Toyota >> 2019 >> Sienna Limited, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System - Diagnostic Codes (2 Of 2) & Circuit Tests (1 Of 3) >> Can Communication System >> Diagnostic Codes >> DTC U1002 (CAN No. 2 BUS): Lost Communication with Gateway Module (Network Gateway ECU) [08/2016 - 11/2017] >> Procedure

DTC U1002 (CAN No. 2 BUS): Lost Communication with Gateway Module (Network Gateway ECU) [08/2016 - 11/2017]: Procedure

  1. PRECAUTION 
    NOTE:

    After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (Refer to PRECAUTION [08/2016 - ] ).

    Result: 

    NEXT 

    See step  2

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.
      WARNING:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

      NOTE:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Refer to INITIALIZATION [08/2016 - 11/2017] )

      RESULT

      Result Proceed to
      w/ Smart Key System A
      w/o Smart Key System B

    Result: 

    B 

    See step  49

    Result: 

    A 

    See step  3

  3. CHECK CAN BUS WIRE (MAIN WIRE FOR DISCONNECTION, BUS LINE FOR SHORT CIRCUIT) 
    GTY702790Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Junction connector with harness connected
    (No. 3 Junction Connector)
    *b Front view of DLC3
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition Resistance Malfunction
      D181-11 (CANH) - D181-22 (CANL) Ignition switch off 54 to 69 Ω Below 53 Ω: Short in line
      Ignition switch off 70 Ω or higher: Open in CAN main bus line
      D181-11 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher Below 6 kΩ: +B short
      D181-22 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher Below 6 kΩ: +B short
      D181-11 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher Below 200 Ω: Ground short
      D181-22 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher Below 200 Ω: Ground short
      RESULT

      Result Proceed to
      NG
      - Open in CAN main wire      		 A
      NG
      - Short in line
      - +B short
      - Ground short      		 B
      OK C

    Result: 

    B 

    See step  15

    Result: 

    C 

    See step  48

    Result: 

    A 

    See step  4

  4. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU) 
    1. Disconnect the No. 3 junction connector connector.
      GTY721665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 3 Junction Connector)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D181-11 (CANH) - D181-22 (CANL) Ignition switch off 108 to 132 Ω
      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    See step  7

    Result: 

    A 

    See step  5

  5. CONNECT CONNECTOR 
    1. Reconnect the D181 No. 3 junction connector connector.

    Result: 

    NEXT 

    See step  6

  6. CHECK FOR OPEN IN CAN BUS MAIN WIRE (POWER MANAGEMENT CONTROL ECU - NO. 4 JUNCTION CONNECTOR) 
    GTY719106Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Power Management Control ECU)
    1. Disconnect the power management control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D89-12 (CA3P) - D89-11 (CA3N) Ignition switch off 108 to 132 Ω

    Result: 

    OK 

    REPLACE POWER MANAGEMENT CONTROL ECU 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO POWER MANAGEMENT CONTROL ECU (POWER MANAGEMENT CONTROL ECU - NO. 3 JUNCTION CONNECTOR) 

  7. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 
    1. Disconnect the No. 3 junction connector connector.
      GTY740465Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 3 Junction Connector)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D181-11 (CANH) - D181-22 (CANL) Ignition switch off 108 to 132 Ω
      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    REPLACE NO. 3 JUNCTION CONNECTOR 

    Result: 

    A 

    See step  8

  8. CONNECT CONNECTOR 
    1. Reconnect the D181 No. 3 junction connector connector.

    Result: 

    NEXT 

    See step  9

  9. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) 
    1. Disconnect the No. 4 junction connector connector.
      GTY729892Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-2 (CANH) - D182-13 (CANL) Ignition switch off 108 to 132 Ω
      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    REPLACE NO. 4 JUNCTION CONNECTOR 

    Result: 

    A 

    See step  10

  10. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  11

  11. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) 
    1. Disconnect the No. 5 junction connector connector.
      GTY722416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      L55-2 (CANH) - L55-13 (CANL) Ignition switch off 108 to 132 Ω

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  12

  12. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR SIDE) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY693749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)

      Standard Resistance

      Tester Connection Condition Specified Condition
      L55-3 (CANH) - L55-14 (CANL) Ignition switch off 108 to 132 Ω

    Result: 

    NG 

    REPLACE NO. 5 JUNCTION CONNECTOR 

    Result: 

    OK 

    See step  13

  13. CONNECT CONNECTOR 
    1. Reconnect the L55 No. 5 junction connector connector.

    Result: 

    NEXT 

    See step  14

  14. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION TERMINAL - NO. 5 JUNCTION CONNECTOR) 
    1. Disconnect the No. 2 junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY703473Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 Junction Terminal)

      Standard Resistance

      Tester Connection Condition Specified Condition
      L54-3 (CANH) - L54-2 (CANL) Ignition switch off 108 to 132 Ω

    Result: 

    OK 

    REPLACE NO. 2 JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION TERMINAL - NO. 5 JUNCTION CONNECTOR) 

  15. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU) 
    GTY712314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 3 Junction Connector)
    *b Front view of DLC3
    1. Disconnect the No. 3 junction connector connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D181-11 (CANH) - D181-22 (CANL) Ignition switch off 108 to 132 Ω
      D181-11 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D181-22 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D181-11 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D181-22 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  32

    Result: 

    OK 

    See step  16

  16. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - 4WD ECU ASSEMBLY) 
    GTY686518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 3 Junction Connector)
    *b Front view of DLC3

    HINT: 

    Except AWD without smart key system, go to step 17.

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D181-9 (CANH) - D181-20 (CANL) Ignition switch off 200 Ω or higher
      D181-9 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D181-20 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D181-9 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D181-20 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  34

    Result: 

    OK 

    See step  17

  17. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR SIDE) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY735918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 3 Junction Connector)
      *b Front view of DLC3

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D181-10 (CANH) - D181-21 (CANL) Ignition switch off 200 Ω or higher
      D181-10 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D181-21 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D181-10 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D181-21 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    REPLACE NO. 3 JUNCTION CONNECTOR 

    Result: 

    A 

    See step  18

  18. CONNECT CONNECTOR 
    1. Reconnect the D181 No. 3 junction connector connector.

    Result: 

    NEXT 

    See step  19

  19. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR) 
    1. Disconnect the No. 4 junction connector connector.
      GTY715742Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-5 (CANH) - D182-16 (CANL) Ignition switch off 108 to 132 Ω
      D182-5 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-16 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-5 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-16 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  20

  20. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY) 

    HINT: 

    For vehicle without intuitive parking assist system, go to step 21.

    GTY738097Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-1 (CANH) - D182-12 (CANL) Ignition switch off 200 Ω or higher
      D182-1 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-12 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-1 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-12 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  36

    Result: 

    OK 

    See step  21

  21. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU) 
    GTY716487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3

    HINT: 

    For vehicle without pre-collision system, go to step 22.

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-3 (CANH) - D182-14 (CANL) Ignition switch off 200 Ω or higher
      D182-3 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-14 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-3 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-14 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  38

    Result: 

    OK 

    See step  22

  22. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - DRIVING SUPPORT ECU ASSEMBLY) 
    GTY722637Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3

    HINT: 

    For vehicle without dynamic radar cruise control system, go to step 23.

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-4 (CANH) - D182-15 (CANL) Ignition switch off 200 Ω or higher
      D182-4 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-15 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-4 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-15 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  40

    Result: 

    OK 

    See step  23

  23. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)) 
    GTY727939Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3

    HINT: 

    For vehicle without HID headlight system, go to step 24.

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-6 (CANH) - D182-17 (CANL) Ignition switch off 200 Ω or higher
      D182-6 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-17 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-6 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-17 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  42

    Result: 

    OK 

    See step  24

  24. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - PARKING ASSIST ECU) 
    GTY730889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3

    HINT: 

    For vehicle without parking assist monitor system, go to step 25.

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-7 (CANH) - D182-18 (CANL) Ignition switch off 200 Ω or higher
      D182-7 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-18 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-7 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-18 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  44

    Result: 

    OK 

    See step  25

  25. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR SIDE) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY709326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-2 (CANH) - D182-13 (CANL) Ignition switch off 200 Ω or higher
      D182-2 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-13 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-2 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-13 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    REPLACE NO. 4 JUNCTION CONNECTOR 

    Result: 

    A 

    See step  26

  26. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  27

  27. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 
    1. Disconnect the No. 5 junction connector connector.
      GTY715734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
      *b Front view of DLC3
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      L55-2 (CANH) - L55-13 (CANL) Ignition switch off 108 to 132 Ω
      L55-2 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-13 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-2 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L55-13 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 5 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  28

  28. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR RH) 

    HINT: 

    For vehicle without blind spot monitor system, go to 29.

    1. Measure the resistance according to the value(s) in the table below.
      GTY724294Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
      *b Front view of DLC3

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      L55-1 (CANH) - L55-12 (CANL) Ignition switch off 200 Ω or higher
      L55-1 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-12 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-1 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L55-12 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  46

    Result: 

    OK 

    See step  29

  29. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR SIDE) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY724296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
      *b Front view of DLC3

      Standard Resistance

      Tester Connection Condition Specified Condition
      L55-3 (CANH) - L55-14 (CANL) Ignition switch off 108 to 132 Ω
      L55-3 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-14 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-3 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L55-14 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    REPLACE NO. 5 JUNCTION CONNECTOR 

    Result: 

    OK 

    See step  30

  30. CONNECT CONNECTOR 
    1. Reconnect the L55 No. 5 junction connector connector.

    Result: 

    NEXT 

    See step  31

  31. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION TERMINAL - NO. 5 JUNCTION CONNECTOR) 
    1. Disconnect the No. 2 junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY740129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 Junction Terminal)
      *b Front view of DLC3

      Standard Resistance

      Tester Connection Condition Specified Condition
      L54-3 (CANH) - L54-2 (CANL) Ignition switch off 108 to 132 Ω
      L54-3 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L54-2 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L54-3 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L54-2 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE NO. 2 JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO JUNCTION TERMINAL (NO. 2 JUNCTION TERMINAL - NO. 5 JUNCTION CONNECTOR) 

  32. CONNECT CONNECTOR 
    1. Reconnect the D181 No. 3 junction connector connector.

    Result: 

    NEXT 

    See step  33

  33. CHECK FOR SHORT IN CAN BUS WIRES (POWER MANAGEMENT CONTROL ECU) 
    GTY724612Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Power Management Control ECU)
    *b Front view of DLC3
    1. Disconnect the power management control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D89-12 (CA3P) - D89-11 (CA3N) Ignition switch off 108 to 132 Ω
      D89-12 (CA3P) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D89-11 (CA3N) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D89-12 (CA3P) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D89-11 (CA3N) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE POWER MANAGEMENT CONTROL ECU 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO POWER MANAGEMENT CONTROL ECU (CAN-H, CAN-L) 

  34. CONNECT CONNECTOR 
    1. Reconnect the D181 No. 3 junction connector connector.

    Result: 

    NEXT 

    See step  35

  35. CHECK FOR SHORT IN CAN BUS WIRES (4WD ECU ASSEMBLY) 
    GTY735407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to 4WD ECU Assembly)
    *b Front view of DLC3
    1. Disconnect the 4WD ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      K1-14 (CANH) - K1-16 (CANL) Ignition switch off 54 to 69 Ω
      K1-14 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      K1-16 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      K1-14 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      K1-16 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE 4WD ECU ASSEMBLY 

    (Refer to REMOVAL [12/2015 - ] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CLEARANCE WARNING ECU ASSEMBLY (CAN-H, CAN-L) 

  36. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  37

  37. CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY) 
    GTY700095Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Clearance Warning ECU Assembly)
    *b Front view of DLC3
    1. Disconnect the clearance warning ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D77-3 (R1) - D77-5 (R2) Ignition switch off 54 to 69 Ω
      D77-3 (R1) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D77-5 (R2) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D77-3 (R1) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D77-5 (R2) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE CLEARANCE WARNING ECU ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CLEARANCE WARNING ECU ASSEMBLY (CAN-H, CAN-L) 

  38. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  39

  39. CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU) 
    GTY695752Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Seat Belt Control ECU)
    *b Front view of DLC3
    1. Disconnect the seat belt control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D83-1 (CANH) - D83-2 (CANL) Ignition switch off 54 to 69 Ω
      D83-1 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D83-2 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D83-1 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D83-2 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE SEAT BELT CONTROL ECU 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SEAT BELT CONTROL ECU (CAN-H, CAN-L) 

  40. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  41

  41. CHECK FOR SHORT IN CAN BUS WIRES (DRIVING SUPPORT ECU ASSEMBLY) 
    GTY738060Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Driving Support ECU Assembly)
    *b Front view of DLC3
    1. Disconnect the driving support ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A44-39 (CA2H) - A44-17 (CA2L) Ignition switch off 54 to 69 Ω
      A44-39 (CA2H) - D16-4 (CG) Ignition switch off 200 Ω or higher
      A44-17 (CA2L) - D16-4 (CG) Ignition switch off 200 Ω or higher
      A44-39 (CA2H) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      A44-17 (CA2L) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE DRIVING SUPPORT ECU ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DRIVING SUPPORT ECU ASSEMBLY (CAN-H, CAN-L) 

  42. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  43

  43. CHECK FOR SHORT IN CAN BUS WIRES (AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)) 
    GTY708959Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to AFS ECU (Headlight Swivel ECU Assembly))
    *b Front view of DLC3
    1. Disconnect the AFS ECU (headlight swivel ECU assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A45-12 (CANH) - A45-13 (CANL) Ignition switch off 54 to 69 Ω
      A45-12 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      A45-13 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      A45-12 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      A45-13 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) 

    (Refer to REMOVAL [12/2015 - ] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) (CAN-H, CAN-L) 

  44. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  45

  45. CHECK FOR SHORT IN CAN BUS WIRES (PARKING ASSIST ECU) 
    GTY687457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Parking Assist ECU)
    *b Front view of DLC3
    1. Disconnect the parking assist ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D164-40 (CANH) - D164-39 (CANL) Ignition switch off 54 to 69 Ω
      D164-40 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D164-39 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D164-40 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D164-39 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE PARKING ASSIST ECU 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO PARKING ASSIST ECU (CAN-H, CAN-L) 

  46. CONNECT CONNECTOR 
    1. Reconnect the L55 No. 5 junction connector connector.

    Result: 

    NEXT 

    See step  47

  47. CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR RH) 
    GTY704681Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Blind Spot Monitor Sensor RH)
    *b Front view of DLC3
    1. Disconnect the blind spot monitor sensor RH connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      q2-2 (CA1P) - q2-7 (CA1N) Ignition switch off 54 to 69 Ω
      q2-2 (CA1P) - D16-4 (CG) Ignition switch off 200 Ω or higher
      q2-7 (CA1N) - D16-4 (CG) Ignition switch off 200 Ω or higher
      q2-2 (CA1P) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      q2-7 (CA1N) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE BLIND SPOT MONITOR SENSOR RH 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO BLIND SPOT MONITOR SENSOR RH (CAN-H, CAN-L) 

  48. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - POWER SOURCE) 
    GTY723916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Power Management Control ECU)
    1. Connect the cable to the negative (-) battery terminal.
      NOTE:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Refer to INITIALIZATION [08/2016 - 11/2017] ).

    2. Disconnect the power management control ECU.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D89-6 (GND) - Body ground Always Below 1 Ω
      D89-5 (GND2) - Body ground Always Below 1 Ω
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      D89-2 (AM21) - Body ground Always 11 to 14 V
      D89-1 (AM22) - Body ground Always 11 to 14 V

    Result: 

    OK 

    REPLACE POWER MANAGEMENT CONTROL ECU 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  49. CHECK CAN BUS WIRE (MAIN WIRE FOR DISCONNECTION, BUS LINE FOR SHORT CIRCUIT) 
    GTY734498Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Junction connector with harness connected
    (No. 4 Junction Connector)
    *b Front view of DLC3
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition Resistance Malfunction
      D182-5 (CANH) - D182-16 (CANL) Ignition switch off 54 to 69 Ω Below 53 Ω: Short in line
      Ignition switch off 70 Ω or higher: Open in CAN main bus line
      D182-5 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher Below 6 kΩ: +B short
      D182-16 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher Below 6 kΩ: +B short
      D182-5 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher Below 200 Ω: Ground short
      D182-16 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher Below 200 Ω: Ground short
      RESULT

      Result Proceed to
      NG
      - Open in CAN main wire      		 A
      NG
      - Short in line
      - +B short
      - Ground short      		 B
      OK C

    Result: 

    B 

    See step  59

    Result: 

    C 

    See step  86

    Result: 

    A 

    See step  50

  50. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU) 
    1. Disconnect the No. 4 junction connector connector.
      GTY721664Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-5 (CANH) - D182-16 (CANL) Ignition switch off 108 to 132 Ω
      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    See step  53

    Result: 

    A 

    See step  51

  51. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  52

  52. CHECK OPEN IN CAN BUS MAIN WIRE (NETWORKGATEWAYECU - NO. 4 JUNCTION CONNECTOR) 
    GTY736957Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to Network Gateway ECU)
    1. Disconnect the network gateway ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D89-12 (CA3P) - D89-11 (CA3N) Ignition switch off 108 to 132 Ω

    Result: 

    OK 

    REPLACE NETWORK GATEWAY ECU. Refer to  REMOVAL [12/2015 - 11/2017] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO NETWORK GATEWAY ECU (NETWORK GATEWAY ECU - NO. 4 JUNCTIONCONNECTOR) 

  53. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) 
    1. Disconnect the No. 4 junction connector connector.
      GTY729892Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-2 (CANH) - D182-13 (CANL) Ignition switch off 108 to 132 Ω
      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    REPAIR NO. 4 JUNCTION CONNECTOR 

    Result: 

    A 

    See step  54

  54. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  55

  55. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) 
    1. Disconnect the No. 5 junction connector connector.
      GTY722416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      L55-2 (CANH) - L55-13 (CANL) Ignition switch off 108 to 132 Ω

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  56

  56. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR SIDE) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY693749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)

      Standard Resistance

      Tester Connection Condition Specified Condition
      L55-3 (CANH) - L55-14 (CANL) Ignition switch off 108 to 132 Ω

    Result: 

    NG 

    REPLACE NO. 5 JUNCTION CONNECTOR 

    Result: 

    OK 

    See step  57

  57. CONNECT CONNECTOR 
    1. Reconnect the L55 No. 5 junction connector connector.

    Result: 

    NEXT 

    See step  58

  58. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION TERMINAL - NO. 5 JUNCTION CONNECTOR) 
    1. Disconnect the No. 2 junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY703473Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 Junction Terminal)

      Standard Resistance

      Tester Connection Condition Specified Condition
      L54-3 (CANH) - L54-2 (CANL) Ignition switch off 108 to 132 Ω

    Result: 

    OK 

    REPLACE NO. 2 JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION TERMINAL - NO. 5 JUNCTION CONNECTOR) 

  59. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU) 
    GTY712315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3
    1. Disconnect the No. 4 junction connector connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-5 (CANH) - D182-16 (CANL) Ignition switch off 108 to 132 Ω
      D182-5 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-16 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-5 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-16 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  72

    Result: 

    OK 

    See step  60

  60. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY) 

    HINT: 

    For vehicle without intuitive parking assist system, go to step 61.

    GTY738097Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-1 (CANH) - D182-12 (CANL) Ignition switch off 200 Ω or higher
      D182-1 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-12 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-1 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-12 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  74

    Result: 

    OK 

    See step  61

  61. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU) 
    GTY716487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3

    HINT: 

    For vehicle without pre-collision system, go to step 62.

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-3 (CANH) - D182-14 (CANL) Ignition switch off 200 Ω or higher
      D182-3 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-14 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-3 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-14 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  76

    Result: 

    OK 

    See step  62

  62. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - DRIVING SUPPORT ECU ASSEMBLY) 
    GTY722637Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3

    HINT: 

    For vehicle without dynamic radar cruise control system, go to step 63.

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-4 (CANH) - D182-15 (CANL) Ignition switch off 200 Ω or higher
      D182-4 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-15 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-4 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-15 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  78

    Result: 

    OK 

    See step  63

  63. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)) 
    GTY727939Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3

    HINT: 

    For vehicle without HID headlight system, go to step 64.

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-6 (CANH) - D182-17 (CANL) Ignition switch off 200 Ω or higher
      D182-6 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-17 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-6 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-17 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  80

    Result: 

    OK 

    See step  64

  64. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - PARKING ASSIST ECU) 
    GTY730889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b Front view of DLC3

    HINT: 

    For vehicle without parking assist monitor system, go to step 65.

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-7 (CANH) - D182-18 (CANL) Ignition switch off 200 Ω or higher
      D182-7 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-18 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-7 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-18 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  82

    Result: 

    OK 

    See step  65

  65. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR SIDE) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY709326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-2 (CANH) - D182-13 (CANL) Ignition switch off 200 Ω or higher
      D182-2 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-13 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D182-2 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D182-13 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    REPLACE JUNCTION CONNECTOR 

    Result: 

    A 

    See step  66

  66. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  67

  67. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 
    1. Disconnect the No. 5 junction connector connector.
      GTY715734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
      *b Front view of DLC3
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      L55-2 (CANH) - L55-13 (CANL) Ignition switch off 108 to 132 Ω
      L55-2 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-13 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-2 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L55-13 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 5 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  68

  68. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR RH) 

    HINT: 

    For vehicle without blind spot monitor system, go to 69.

    1. Measure the resistance according to the value(s) in the table below.
      GTY724294Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
      *b Front view of DLC3

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      L55-1 (CANH) - L55-12 (CANL) Ignition switch off 200 Ω or higher
      L55-1 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-12 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-1 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L55-12 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    See step  84

    Result: 

    OK 

    See step  69

  69. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR SIDE) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY724296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
      *b Front view of DLC3

      Standard Resistance

      Tester Connection Condition Specified Condition
      L55-3 (CANH) - L55-14 (CANL) Ignition switch off 108 to 132 Ω
      L55-3 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-14 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L55-3 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L55-14 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    NG 

    REPLACE NO. 5 JUNCTION CONNECTOR 

    Result: 

    OK 

    See step  70

  70. CONNECT CONNECTOR 
    1. Reconnect the L55 No. 5 junction connector connector.

    Result: 

    NEXT 

    See step  71

  71. CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION TERMINAL - NO. 5 JUNCTION CONNECTOR) 
    1. Disconnect the No. 2 junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY740129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 Junction Terminal)
      *b Front view of DLC3

      Standard Resistance

      Tester Connection Condition Specified Condition
      L54-3 (CANH) - L54-2 (CANL) Ignition switch off 108 to 132 Ω
      L54-3 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L54-2 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L54-3 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L54-2 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE NO. 2 JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION TERMINAL - NO. 5 JUNCTION CONNECTOR) 

  72. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  73

  73. CHECK FOR SHORT IN CAN BUS WIRES (NETWORK GATEWAY ECU) 
    GTY731022Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Network Gateway ECU)
    *b Front view of DLC3
    1. Disconnect the network gateway ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D90-13 (CA2H) - D90-12 (CA2L) Ignition switch off 108 to 132 Ω
      D90-13 (CA2H) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D90-12 (CA2L) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D90-13 (CA2H) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D90-12 (CA2L) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE NETWORK GATEWAY ECU 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO NETWORK GATEWAY ECU (CAN-H, CAN-L) 

  74. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  75

  75. CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY) 
    GTY700095Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Clearance Warning ECU Assembly)
    *b Front view of DLC3
    1. Disconnect the clearance warning ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D77-3 (R1) - D77-5 (R2) Ignition switch off 54 to 69 Ω
      D77-3 (R1) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D77-5 (R2) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D77-3 (R1) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D77-5 (R2) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE CLEARANCE WARNING ECU ASSEMBLY. Refer to  REMOVAL [12/2015 - 11/2017] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CLEARANCE WARNING ECU ASSEMBLY (CAN-H, CAN-L) 

  76. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  77

  77. CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU) 
    GTY695752Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Seat Belt Control ECU)
    *b Front view of DLC3
    1. Disconnect the seat belt control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D83-1 (CANH) - D83-2 (CANL) Ignition switch off 54 to 69 Ω
      D83-1 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D83-2 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D83-1 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D83-2 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE DRIVING SUPPORT ECU ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DRIVING SUPPORT ECU ASSEMBLY (CAN-H, CAN-L) 

  78. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  79

  79. CHECK FOR SHORT IN CAN BUS WIRES (DRIVING SUPPORT ECU ASSEMBLY) 
    GTY738060Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Driving Support ECU Assembly)
    *b Front view of DLC3
    1. Disconnect the driving support ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A44-39 (CA2H) - A44-17 (CA2L) Ignition switch off 54 to 69 Ω
      A44-39 (CA2H) - D16-4 (CG) Ignition switch off 200 Ω or higher
      A44-17 (CA2L) - D16-4 (CG) Ignition switch off 200 Ω or higher
      A44-39 (CA2H) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      A44-17 (CA2L) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE DRIVING SUPPORT ECU ASSEMBLY 

    (Refer to REMOVAL [12/2015 - 11/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DRIVING SUPPORT ECU ASSEMBLY (CAN-H, CAN-L) 

  80. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  81

  81. CHECK FOR SHORT IN CAN BUS WIRES (AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)) 
    GTY708959Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to AFS ECU (Headlight Swivel ECU Assembly))
    *b Front view of DLC3
    1. Disconnect the AFS ECU (headlight swivel ECU assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A45-12 (CANH) - A45-13 (CANL) Ignition switch off 54 to 69 Ω
      A45-12 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      A45-13 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      A45-12 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      A45-13 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) 

    (Refer to REMOVAL [12/2015 - ] )

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) (CAN-H, CAN-L) 

  82. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 junction connector connector.

    Result: 

    NEXT 

    See step  83

  83. CHECK FOR SHORT IN CAN BUS WIRES (PARKING ASSIST ECU) 
    GTY687457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Parking Assist ECU)
    *b Front view of DLC3
    1. Disconnect the parking assist ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D164-40 (CANH) - D164-39 (CANL) Ignition switch off 54 to 69 Ω
      D164-40 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D164-39 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D164-40 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D164-39 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE PARKING ASSIST ECU 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO PARKING ASSIST ECU (CAN-H, CAN-L) 

  84. CONNECT CONNECTOR 
    1. Reconnect the L55 No. 5 junction connector connector.

    Result: 

    NEXT 

    See step  85

  85. CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR RH) 
    GTY704681Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Blind Spot Monitor Sensor RH)
    *b Front view of DLC3
    1. Disconnect the blind spot monitor sensor RH connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      q2-2 (CA1P) - q2-7 (CA1N) Ignition switch off 54 to 69 Ω
      q2-2 (CA1P) - D16-4 (CG) Ignition switch off 200 Ω or higher
      q2-7 (CA1N) - D16-4 (CG) Ignition switch off 200 Ω or higher
      q2-2 (CA1P) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      q2-7 (CA1N) - D16-16 (BAT) Ignition switch off 6 kΩ or higher

    Result: 

    OK 

    REPLACE BLIND SPOT MONITOR SENSOR RH 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO BLIND SPOT MONITOR SENSOR RH (CAN-H, CAN-L) 

  86. CHECK HARNESS AND CONNECTOR (NETWORK GATEWAY ECU - POWER SOURCE) 
    GTY723940Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Network Gateway ECU)
    1. Connect the cable to the negative (-) battery terminal.
      NOTE:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Refer to INITIALIZATION [08/2016 - 11/2017] ).

    2. Disconnect the network gateway ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D90-4 (GND) - Body ground Always Below 1 Ω
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      D90-9 (IG2) - Body ground Ignition switch ON 11 to 14 V
      D90-10 (IG1) - Body ground Ignition switch ON 11 to 14 V

    Result: 

    OK 

    REPLACE NETWORK GATEWAY ECU 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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