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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) [12/2015 - 08/2016] >> Procedure

DTC U1002 (CAN No. 2 BUS): Lost Communication with Gateway Module (Network Gateway ECU) [12/2015 - 08/2016]: 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 [12/2015 - 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 [12/2015 - 08/2016] )

    Result: 

    NEXT 

    See step  3

  3. CHECK CAN BUS WIRE (MAIN WIRE FOR DISCONNECTION, BUS LINE FOR SHORT CIRCUIT) 
    GTY702433Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Junction connector with harness connected
      (No. 4 Junction Connector)
      *b Front view of DLC3
      RESULT

      Result Proceed to
      NG
      - Open in CAN main wire      		 A
      NG
      - Short in line
      - +B short
      - Ground short      		 B
      OK (w/ Smart Key System) C
      OK (w/o Smart Key System) D

    Result: 

    B 

    See step  15

    Result: 

    C 

    See step  44

    Result: 

    D 

    See step  45

    Result: 

    A 

    See step  4

  4. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU*1 OR NETWORK GATEWAY ECU*2) 

    *1: w/ Smart Key System

    *2: w/o Smart Key System

    1. Disconnect the No. 4 junction connector connector.
      GTY721316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      RESULT

      Result Proceed to
      NG (w/ Smart Key System) A
      NG (w/o Smart Key System) B
      OK C

    Result: 

    B 

    See step  7

    Result: 

    C 

    See step  9

    Result: 

    A 

    See step  5

  5. CONNECT CONNECTOR 
    1. Reconnect the D182 No. 4 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) 
    GTY718726Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      D89-26 (CA2H) - D89-25 (CA2L) Ignition switch off 108 to 132 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Power Management Control ECU)

    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. 4 JUNCTION CONNECTOR) 

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

    Result: 

    NEXT 

    See step  8

  8. CHECK FOR OPEN IN CAN BUS MAIN WIRE (NETWORK GATEWAY ECU - NO. 4 JUNCTION CONNECTOR) 
    GTY736863Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Network Gateway ECU)

    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 JUNCTION CONNECTOR) 

  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.
      GTY729481Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D182-2 (CANH) - D182-3 (CANL) Ignition switch off 108 to 132 Ω
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      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.
      GTY738884Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      L53-2 (CANH) - L53-13 (CANL) Ignition switch off 108 to 132 Ω
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)

    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.
      GTY694099Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      L53-3 (CA) - L53-14 (CANL) Ignition switch off 108 to 132 Ω
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)

    Result: 

    NG 

    REPLACE NO. 5 JUNCTION CONNECTOR 

    Result: 

    OK 

    See step  13

  13. CONNECT CONNECTOR 
    1. Reconnect the L53 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.
      GTY703159Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

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

      *a Front view of wire harness connector
      (to No. 2 Junction Terminal)

    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. 4 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU*1 OR NETWORK GATEWAY ECU*2) 
    GTY736490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    *1: w/ Smart Key System

    *2: w/o Smart Key System

    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
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3
      RESULT

      Result Proceed to
      OK A
      NG (w/ Smart Key System) B
      NG (w/o Smart Key System) C

    Result: 

    B 

    See step  28

    Result: 

    C 

    See step  30

    Result: 

    A 

    See step  16

  16. 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 14.

    GTY718782Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3

    Result: 

    NG 

    See step  32

    Result: 

    OK 

    See step  17

  17. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU) 
    GTY724107Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT: 

    For vehicle without pre-collision system, go to step 15.

    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
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3

    Result: 

    NG 

    See step  34

    Result: 

    OK 

    See step  18

  18. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - DRIVING SUPPORT ECU ASSEMBLY) 
    GTY722208Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT: 

    For vehicle without dynamic radar cruise control system, go to step 16.

    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
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3

    Result: 

    NG 

    See step  36

    Result: 

    OK 

    See step  19

  19. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)) 
    GTY727590Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT: 

    For vehicle without HID headlight 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
      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
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3

    Result: 

    NG 

    See step  38

    Result: 

    OK 

    See step  20

  20. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - PARKING ASSIST ECU) 
    GTY730827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT: 

    For vehicle without parking assist monitor system, go to step 18.

    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
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3

    Result: 

    NG 

    See step  40

    Result: 

    OK 

    See step  21

  21. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY709010Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      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
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 4 Junction Connector)
      *b Front view of DLC3
      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    REPLACE NO. 4 JUNCTION CONNECTOR 

    Result: 

    A 

    See step  22

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

    Result: 

    NEXT 

    See step  23

  23. CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 
    1. Disconnect the No. 5 junction connector connector.
      GTY715385Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      L53-2 (CANH) - L53-13 (CANL) Ignition switch off 108 to 132 Ω
      L53-2 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L53-13 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L53-2 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L53-13 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
      *b Front view of DLC3

    Result: 

    NG 

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

    Result: 

    OK 

    See step  24

  24. 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 25.

    1. Measure the resistance according to the value(s) in the table below.
      GTY721699Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      L53-1 (CANH) - L53-12 (CANL) Ignition switch off 108 to 132 Ω
      L53-1 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L53-12 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L53-1 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L53-12 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
      *b Front view of DLC3

    Result: 

    NG 

    See step  42

    Result: 

    OK 

    See step  25

  25. 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.
      GTY721701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      L53-3 (CANH) - L53-14 (CANL) Ignition switch off 108 to 132 Ω
      L53-3 (CANH) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L53-14 (CANL) - D16-4 (CG) Ignition switch off 200 Ω or higher
      L53-3 (CANH) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      L53-14 (CANL) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 5 Junction Connector)
      *b Front view of DLC3

    Result: 

    NG 

    REPLACE NO. 5 JUNCTION CONNECTOR 

    Result: 

    OK 

    See step  26

  26. CONNECT CONNECTOR 
    1. Reconnect the L53 No. 5 junction connector connector.

    Result: 

    NEXT 

    See step  27

  27. 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.
      GTY728026Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to No. 2 Junction Terminal)
      *b Front view of DLC3

    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) 

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

    Result: 

    NEXT 

    See step  29

  29. CHECK FOR SHORT IN CAN BUS WIRES (POWER MANAGEMENT CONTROL ECU) 
    GTY721523Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      D89-26 (CA2H) - D89-25 (CA2L) Ignition switch off 108 to 132 Ω
      D89-26 (CA2H) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D89-25 (CA2L) - D16-4 (CG) Ignition switch off 200 Ω or higher
      D89-26 (CA2H) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      D89-25 (CA2L) - D16-16 (BAT) Ignition switch off 6 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Power Management Control ECU)
      *b Front view of DLC3

    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) 

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

    Result: 

    NEXT 

    See step  31

  31. CHECK FOR SHORT IN CAN BUS WIRES (NETWORK GATEWAY ECU) 
    GTY686796Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Network Gateway ECU)
      *b Front view of DLC3

    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) 

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

    Result: 

    NEXT 

    See step  33

  33. CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY) 
    GTY699538Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Clearance Warning ECU Assembly)
      *b Front view of DLC3

    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) 

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

    Result: 

    NEXT 

    See step  35

  35. CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU) 
    GTY695583Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Seat Belt Control ECU)
      *b Front view of DLC3

    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) 

  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 (DRIVING SUPPORT ECU ASSEMBLY) 
    GTY718741Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Driving Support ECU Assembly)
      *b Front view of DLC3

    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) 

  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 (AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)) 
    GTY711293Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to AFS ECU (Headlight Swivel ECU Assembly))
      *b Front view of DLC3

    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) 

  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 (PARKING ASSIST ECU) 
    GTY695974Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Parking Assist ECU)
      *b Front view of DLC3

    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) 

  42. CONNECT CONNECTOR 
    1. Reconnect the L53 No. 5 junction connector connector.

    Result: 

    NEXT 

    See step  43

  43. CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR RH) 
    GTY704329Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Blind Spot Monitor Sensor RH)
      *b Front view of DLC3

    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) 

  44. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - POWER SOURCE) 
    GTY723762Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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 [12/2015 - 08/2016] ).

    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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Power Management Control ECU)

    Result: 

    OK 

    REPLACE POWER MANAGEMENT CONTROL ECU 

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

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  45. CHECK HARNESS AND CONNECTOR (NETWORK GATEWAY ECU - POWER SOURCE) 
    GTY723655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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 [12/2015 - 08/2016] ).

    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
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Network Gateway ECU)

    Result: 

    OK 

    REPLACE NETWORK GATEWAY ECU 

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

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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