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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 62 (Can Communication System (HEV) - Circuit Tests (4 Of 6)) >> CAN COMMUNICATION SYSTEM (for HV Model) >> Check Bus 1 Line [11/2022 - ] >> Procedure

Check Bus 1 Line [11/2022 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR OPEN IN CAN MAIN BUS LINES 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1117574Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I173-28 (CA1H) - I173-27 (CA1L) Cable disconnected from negative (-) auxiliary battery terminal Below 70 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  50

    Result: 

    OK 

    See step  2

  2. CHECK FOR SHORT IN CAN BUS LINES 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1117574Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I173-28 (CA1H) - I173-27 (CA1L) Cable disconnected from negative (-) auxiliary battery terminal 54 Ω or higher

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  35

    Result: 

    OK 

    See step  3

  3. CHECK FOR SHORT TO +B IN CAN BUS LINE 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))      		 - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      I173-28 (CA1H) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I173-27 (CA1L) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  20

    Result: 

    OK 

    See step  4

  4. CHECK FOR SHORT TO GND IN CAN BUS LINE 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))      		 - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      I173-28 (CA1H) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I173-27 (CA1L) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

    Result: 

    NG 

    See step  5

  5. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I192 No. 18 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115455Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I192-7 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  7

    Result: 

    OK 

    See step  6

  6. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 18 CAN JUNCTION CONNECTOR - FORWARD RECOGNITION CAMERA OR NO. 19 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115453Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Forward Recognition Camera or No. 19 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-2 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I192-6 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 18 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  8

  7. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115455Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      I192-7 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  8. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/o Front Camera System A
      w/ Front Camera System B

    Result: 

    B 

    See step  10

    Result: 

    A 

    See step  9

  9. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - NO. 18 CAN JUNCTION CONNECTOR) 
    1. Disconnect the O203 No. 19 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to No. 18 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      O203-5 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    See step  15

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - NO. 18 CAN JUNCTION CONNECTOR) 

  10. CHECK FOR SHORT TO GND IN CAN BUS LINE (FORWARD RECOGNITION CAMERA - NO. 18 CAN JUNCTION CONNECTOR) 
    1. Disconnect the T21 forward recognition camera connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1119130Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Forward Recognition Camera)      		 *b to No. 18 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      T21-2 (CA2P) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      T21-1 (CA2L) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (FORWARD RECOGNITION CAMERA - NO. 18 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  11

  11. CHECK FOR SHORT TO GND IN CAN BUS LINE (FORWARD RECOGNITION CAMERA - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Forward Recognition Camera)      		 *b to Millimeter Wave Radar Sensor Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      T21-10 (CA1P) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      T21-9 (CA1N) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE FORWARD RECOGNITION CAMERA 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  12

  12. CHECK FOR SHORT TO GND IN CAN BUS LINE (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - FORWARD RECOGNITION CAMERA) 
    1. Disconnect the A128 millimeter wave radar sensor assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1117857Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Millimeter Wave Radar Sensor Assembly)      		 *b to Forward Recognition Camera

      Standard Resistance

      Tester Connection Condition Specified Condition
      A128-10 (CA3H) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A128-9 (CA3L) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - FORWARD RECOGNITION CAMERA) 

    Result: 

    OK 

    See step  13

  13. CHECK FOR SHORT TO GND IN CAN BUS LINE (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - NO. 19 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1110184Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Millimeter Wave Radar Sensor Assembly)      		 *b to No. 19 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A128-4 (CA2H) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      A128-3 (CA2L) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  14

  14. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 
    1. Disconnect the O203 No. 19 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Millimeter Wave Radar Sensor Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-1 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      O203-5 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 

    Result: 

    OK 

    See step  15

  15. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Blind Spot Monitor System A
      w/o Blind Spot Monitor System B

    Result: 

    B 

    See step  17

    Result: 

    A 

    See step  16

  16. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH (B)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115451Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Blind Spot Monitor Sensor LH (B)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      O203-7 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  18

    Result: 

    OK 

    See step  17

  17. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1118955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to CAN Junction Terminal

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-2 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      O203-6 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 19 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  19

  18. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH (B)) 
    1. Disconnect the O57 blind spot monitor sensor LH (B) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115451Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Blind Spot Monitor Sensor LH (B)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-3 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      O203-7 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE BLIND SPOT MONITOR SENSOR LH (B) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH (B)) 

  19. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 
    1. Disconnect the O95 CAN junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1118955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to CAN Junction Terminal

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-2 (CANH) - I26-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      O203-6 (CANL) - I26-4 (CG)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CAN JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 

  20. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I192 No. 18 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115458Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I192-7 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  22

    Result: 

    OK 

    See step  21

  21. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 18 CAN JUNCTION CONNECTOR - FORWARD RECOGNITION CAMERA OR NO. 19 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1115457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Forward Recognition Camera or No. 19 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I192-6 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 18 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  23

  22. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115458Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      I192-7 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  23. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/o Front Camera System A
      w/ Front Camera System B

    Result: 

    B 

    See step  25

    Result: 

    A 

    See step  24

  24. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - NO. 18 CAN JUNCTION CONNECTOR) 
    1. Disconnect the O203 No. 19 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to No. 18 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      O203-5 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    See step  30

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - NO. 18 CAN JUNCTION CONNECTOR) 

  25. CHECK FOR SHORT TO +B IN CAN BUS LINE (FORWARD RECOGNITION CAMERA - NO. 18 CAN JUNCTION CONNECTOR) 
    1. Disconnect the T21 forward recognition camera connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Forward Recognition Camera)      		 *b to No. 18 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      T21-2 (CA2P) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      T21-1 (CA2L) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (FORWARD RECOGNITION CAMERA - NO. 18 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  26

  26. CHECK FOR SHORT TO +B IN CAN BUS LINE (FORWARD RECOGNITION CAMERA - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Forward Recognition Camera)      		 *b to Millimeter Wave Radar Sensor Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      T21-10 (CA1P) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      T21-9 (CA1N) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE FORWARD RECOGNITION CAMERA 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  27

  27. CHECK FOR SHORT TO +B IN CAN BUS LINE (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - FORWARD RECOGNITION CAMERA) 
    1. Disconnect the A128 millimeter wave radar sensor assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1110181Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Millimeter Wave Radar Sensor Assembly)      		 *b to Forward Recognition Camera

      Standard Resistance

      Tester Connection Condition Specified Condition
      A128-10 (CA3H) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A128-9 (CA3L) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - FORWARD RECOGNITION CAMERA) 

    Result: 

    OK 

    See step  28

  28. CHECK FOR SHORT TO +B IN CAN BUS LINE (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - NO. 19 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1110180Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to Millimeter Wave Radar Sensor Assembly)      		 *b to No. 19 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A128-4 (CA2H) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      A128-3 (CA2L) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  29

  29. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 
    1. Disconnect the O203 No. 19 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1115456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Millimeter Wave Radar Sensor Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-1 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      O203-5 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 

    Result: 

    OK 

    See step  30

  30. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Blind Spot Monitor System A
      w/o Blind Spot Monitor System B

    Result: 

    B 

    See step  32

    Result: 

    A 

    See step  31

  31. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH (B)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1118956Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Blind Spot Monitor Sensor LH (B)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      O203-7 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  33

    Result: 

    OK 

    See step  32

  32. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1118958Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to CAN Junction Terminal

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      O203-6 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 19 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  34

  33. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH (B)) 
    1. Disconnect the O57 blind spot monitor sensor LH (B) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1118956Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Blind Spot Monitor Sensor LH (B)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-3 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      O203-7 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE BLIND SPOT MONITOR SENSOR LH (B) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH (B)) 

  34. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 
    1. Disconnect the O95 CAN junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1118958Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 DLC3 - -
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to CAN Junction Terminal

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-2 (CANH) - I26-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      O203-6 (CANL) - I26-16 (BAT)

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CAN JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 

  35. CHECK FOR SHORT IN CAN BUS LINES (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I192 No. 18 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116941Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-3 (CANH) - I192-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  37

    Result: 

    OK 

    See step  36

  36. CHECK FOR SHORT IN CAN BUS LINES (NO. 18 CAN JUNCTION CONNECTOR - FORWARD RECOGNITION CAMERA OR NO. 19 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1119259Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Forward Recognition Camera or No. 19 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-2 (CANH) - I192-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 18 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  38

  37. CHECK FOR SHORT IN CAN BUS LINES (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116941Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-3 (CANH) - I192-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  38. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/o Front Camera System A
      w/ Front Camera System B

    Result: 

    B 

    See step  40

    Result: 

    A 

    See step  39

  39. CHECK FOR SHORT IN CAN BUS LINES (NO. 19 CAN JUNCTION CONNECTOR - NO. 18 CAN JUNCTION CONNECTOR) 
    1. Reconnect the I192 No. 18 CAN junction connector.
    2. Disconnect the O203 No. 19 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1116943Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to No. 18 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-1 (CANH) - O203-5 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    See step  45

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - NO. 18 CAN JUNCTION CONNECTOR) 

  40. CHECK FOR SHORT IN CAN BUS LINES (FORWARD RECOGNITION CAMERA - NO. 18 CAN JUNCTION CONNECTOR) 
    1. Reconnect the I192 No. 18 CAN junction connector.
    2. Disconnect the T21 forward recognition camera connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1113160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Forward Recognition Camera)
      *b to No. 18 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      T21-2 (CA2P) - T21-1 (CA2L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (FORWARD RECOGNITION CAMERA - NO. 18 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  41

  41. CHECK FOR SHORT IN CAN BUS LINES (FORWARD RECOGNITION CAMERA - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1113161Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Forward Recognition Camera)
      *b to Millimeter Wave Radar Sensor Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      T21-10 (CA1P) - T21-9 (CA1N) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE FORWARD RECOGNITION CAMERA 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  42

  42. CHECK FOR SHORT IN CAN BUS LINES (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - FORWARD RECOGNITION CAMERA) 
    1. Reconnect the T21 forward recognition camera connector.
    2. Disconnect the A128 millimeter wave radar sensor assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1116246Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Millimeter Wave Radar Sensor Assembly)
      *b to Forward Recognition Camera

      Standard Resistance

      Tester Connection Condition Specified Condition
      A128-10 (CA3H) - A128-9 (CA3L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - FORWARD RECOGNITION CAMERA) 

    Result: 

    OK 

    See step  43

  43. CHECK FOR SHORT IN CAN BUS LINES (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - NO. 19 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116247Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Millimeter Wave Radar Sensor Assembly)
      *b to No. 19 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A128-4 (CA2H) - A128-3 (CA2L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  44

  44. CHECK FOR SHORT IN CAN BUS LINES (NO. 19 CAN JUNCTION CONNECTOR - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 
    1. Reconnect the A128 millimeter wave radar sensor assembly connector.
    2. Disconnect the O203 No. 19 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1116943Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Millimeter Wave Radar Sensor Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-1 (CANH) - O203-5 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 

    Result: 

    OK 

    See step  45

  45. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Blind Spot Monitor System A
      w/o Blind Spot Monitor System B

    Result: 

    B 

    See step  47

    Result: 

    A 

    See step  46

  46. CHECK FOR SHORT IN CAN BUS LINES (NO. 19 CAN JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH (B)) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116945Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Blind Spot Monitor Sensor LH (B)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-3 (CANH) - O203-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Result
      OK
      NG

    Result: 

    NG 

    See step  48

    Result: 

    OK 

    See step  47

  47. CHECK FOR SHORT IN CAN BUS LINES (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116944Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to CAN Junction Terminal

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-2 (CANH) - O203-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 19 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  49

  48. CHECK FOR SHORT IN CAN BUS LINES (NO. 19 CAN JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH (B)) 
    1. Disconnect the O57 blind spot monitor sensor LH (B) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116945Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Blind Spot Monitor Sensor LH (B)

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-3 (CANH) - O203-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE BLIND SPOT MONITOR SENSOR LH (B) 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH (B)) 

  49. CHECK FOR SHORT IN CAN BUS LINES (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 
    1. Disconnect the O95 CAN junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1116944Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to CAN Junction Terminal

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-2 (CANH) - O203-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CAN JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 

  50. CHECK FOR OPEN IN CAN MAIN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1118938Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      I173-28 (CA1H) - I173-27 (CA1L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

    Result: 

    NG 

    See step  51

  51. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Reconnect the I173 central gateway ECU (network gateway ECU) connector.
    2. Disconnect the I192 No. 18 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1116941Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Central Gateway ECU (Network Gateway ECU)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-3 (CANH) - I192-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 18 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Result: 

    OK 

    See step  52

  52. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 18 CAN JUNCTION CONNECTOR - FORWARD RECOGNITION CAMERA OR NO. 19 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1119259Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 18 CAN Junction Connector)      		 *b to Forward Recognition Camera or No. 19 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      I192-2 (CANH) - I192-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 18 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  53

  53. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/o Front Camera System A
      w/ Front Camera System B

    Result: 

    B 

    See step  55

    Result: 

    A 

    See step  54

  54. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 19 CAN JUNCTION CONNECTOR - NO. 18 CAN JUNCTION CONNECTOR) 
    1. Reconnect the I192 No. 18 CAN junction connector.
    2. Disconnect the O203 No. 19 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1116943Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to No. 18 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-1 (CANH) - O203-5 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    See step  60

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - NO. 18 CAN JUNCTION CONNECTOR) 

  55. CHECK FOR OPEN IN CAN MAIN BUS LINES (FORWARD RECOGNITION CAMERA - NO. 18 CAN JUNCTION CONNECTOR) 
    1. Reconnect the I192 No. 18 CAN junction connector.
    2. Disconnect the T21 forward recognition camera connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1113160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Forward Recognition Camera)
      *b to No. 18 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      T21-2 (CA2P) - T21-1 (CA2L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (FORWARD RECOGNITION CAMERA - NO. 18 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  56

  56. CHECK FOR OPEN IN CAN MAIN BUS LINES (FORWARD RECOGNITION CAMERA - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1113161Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Forward Recognition Camera)
      *b to Millimeter Wave Radar Sensor Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      T21-10 (CA1P) - T21-9 (CA1N) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE FORWARD RECOGNITION CAMERA 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  57

  57. CHECK FOR OPEN IN CAN MAIN BUS LINES (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - FORWARD RECOGNITION CAMERA) 
    1. Reconnect the T21 forward recognition camera connector.
    2. Disconnect the A128 millimeter wave radar sensor assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1116246Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Millimeter Wave Radar Sensor Assembly)
      *b to Forward Recognition Camera

      Standard Resistance

      Tester Connection Condition Specified Condition
      A128-10 (CA3H) - A128-9 (CA3L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - FORWARD RECOGNITION CAMERA) 

    Result: 

    OK 

    See step  58

  58. CHECK FOR OPEN IN CAN MAIN BUS LINES (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - NO. 19 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116247Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Millimeter Wave Radar Sensor Assembly)
      *b to No. 19 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      A128-4 (CA2H) - A128-3 (CA2L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY 

    Refer to REMOVAL [11/2022 - ]

    Result: 

    NG 

    See step  59

  59. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 19 CAN JUNCTION CONNECTOR - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 
    1. Reconnect the A128 millimeter wave radar sensor assembly connector.
    2. Disconnect the O203 No. 19 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1116943Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to Millimeter Wave Radar Sensor Assembly

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-1 (CANH) - O203-5 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 19 CAN JUNCTION CONNECTOR - MILLIMETER WAVE RADAR SENSOR ASSEMBLY) 

    Result: 

    OK 

    See step  60

  60. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 19 CAN JUNCTION CONNECTOR - CAN JUNCTION TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1116944Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 19 CAN Junction Connector)      		 *b to CAN Junction Terminal

      Standard Resistance

      Tester Connection Condition Specified Condition
      O203-2 (CANH) - O203-6 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 19 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  61

  61. CHECK FOR OPEN IN CAN MAIN BUS LINES (CAN JUNCTION TERMINAL) 
    1. Reconnect the O203 No. 19 CAN junction connector.
    2. Disconnect the O95 CAN junction terminal connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY1118988Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to CAN Junction Terminal)      		 *b to No. 19 CAN Junction Connector

      Standard Resistance

      Tester Connection Condition Specified Condition
      O95-3 (CANH) - O95-2 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE CAN JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (CAN JUNCTION TERMINAL - NO. 19 CAN JUNCTION CONNECTOR) 

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