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HOMESERVICE MANUALSTOYOTA20254RUNNER SR5, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESCAN COMMUNICATION SYSTEM (EXCEPT HEV) - CIRCUIT TESTS (1 OF 3) & DIAGNOSTIC CODESCAN COMMUNICATION SYSTEM (FOR GASOLINE MODEL)DTC U115C-87: LOST COMMUNICATION WITH ECM/PCM "A" (CH5) MISSING MESSAGE; DTC U0076-88: CONTROL MODULE COMMUNICATION BUS "D" OFF BUS OFF; DTC U0137-87: LOST COMMUNICATION WITH TRAILER BRAKE CONTROL MODULE MISSING MESSAGE; DTC U1170-87: LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE (CH2) MISSING MESSAGE; DTC U1171-87: LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE (CH3) MISSING MESSAGE [12/2024 - ]PROCEDURE
2025 Toyota 4Runner SR5, 4WD

DTC U115C-87: Lost Communication with ECM/PCM "A" (ch5) Missing Message; DTC U0076-88: Control Module Communication Bus "D" Off Bus Off; DTC U0137-87: Lost Communication With Trailer Brake Control Module Missing Message; DTC U1170-87: Lost Communication with Brake System Control Module (ch2) Missing Message; DTC U1171-87: Lost Communication with Brake System Control Module (ch3) Missing Message [12/2024 - ]: Procedure

2025 Toyota 4Runner SR5, 4WDSECTION Procedure
  1. RECONFIRM DTC OUTPUT 
    1. Check for DTCs.

      Powertrain > Engine > Trouble Codes 

      Chassis > Brake/EPB > Trouble Codes 

      Powertrain > Stop and Start > Trouble Codes 

      Chassis > Trailer Brake Controller > Trouble Codes 

      Chassis > Adaptive Variable Suspension System > Trouble Codes 

      Display on GTS / Output DTC Pattern
      Pattern 1 Pattern 2 Pattern 3 Pattern 4 Pattern 5
      Engine U0137-87 - ◦ - ◦ -
      U115C-87 ◦ ◦ - - -
      Brake/EPB U115C-87 ◦ ◦ - - -
      Stop and Start U115C-87 - ◦ ◦ - -
      U1170-87 ◦ - ◦ - -
      Trailer Brake Controller U0076-88 - - - ◦ -
      U1171-87 ◦ - - ◦ -
      Adaptive Variable Suspension System U1171-87 ◦ - - - ◦

      Result

      Result  Proceed to 
      Pattern 1 A
      Pattern 2 B
      Pattern 3 C
      Pattern 4 D
      Pattern 5 E
      Other Pattern F

    Result: 

    B 

    See step  3

    Result: 

    C 

    See step  4

    Result: 

    D 

    See step  5

    Result: 

    E 

    See step  6

    Result: 

    F 

    See step  7

    Result: 

    A 

    See step  2

  2. CHECK FOR OPEN IN CAN BUS LINES (BRAKE ACTUATOR ASSEMBLY MAIN LINE) 

    Pre-procedure1

    • Disconnect the cable from the negative (-) battery terminal.
    • Disconnect the A18 brake actuator assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      A18-16 (CA2H) - A18-17 (CA2L) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (BRAKE ACTUATOR ASSEMBLY) 

  3. CHECK FOR OPEN IN CAN BUS LINES (ECM BRANCH LINE) 

    Pre-procedure1

    • Disconnect the cable from the negative (-) battery terminal.
    • Disconnect the A3 ECM connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      A3-5 (CACH) - A3-6 (CACL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (ECM) 

  4. CHECK FOR OPEN IN CAN BUS LINES (ENGINE STOP AND START ECU ASSEMBLY BRANCH LINE) 

    Pre-procedure1

    • Disconnect the cable from the negative (-) battery terminal.
    • Disconnect the K70 engine stop and start ECU assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K70-15 (LC1H) - K70-16 (LC1L) Cable disconnected from negative (-) battery terminal 54 to 69 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ENGINE STOP AND START ECU ASSEMBLY 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (ENGINE STOP AND START ECU ASSEMBLY) 

  5. CHECK FOR OPEN IN CAN BUS LINES (TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY) BRANCH LINE) 

    Pre-procedure1

    • Disconnect the cable from the negative (-) battery terminal.
    • Disconnect the K40 trailer brake control ECU (brake control with bracket relay) connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K40-40 (CA2H) - K40-39 (CA2L) Cable disconnected from negative (-) battery terminal 54 to 69 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY) 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 

  6. CHECK FOR OPEN IN CAN BUS LINES (ABSORBER CONTROL ECU BRANCH LINE) 

    Pre-procedure1

    • Disconnect the cable from the negative (-) battery terminal.
    • Disconnect the S27 absorber control ECU connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      S27-19 (CA2H) - S27-18 (CA2L) Cable disconnected from negative (-) battery terminal 54 to 69 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ABSORBER CONTROL ECU 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (ABSORBER CONTROL ECU) 

  7. CHECK FOR OPEN IN CAN MAIN BUS LINES 

    Pre-procedure1

    • Disconnect the cable from the negative (-) battery terminal.
    • Measure the resistance according to the value(s) in the table below.
      GTY1278868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K43-10 (CAVH) - K43-11 (CAVL) Cable disconnected from negative (-) battery terminal Below 70 Ω Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    See step  62

    Result: 

    OK 

    See step  8

  8. CHECK FOR SHORT IN CAN BUS LINES 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1278868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K43-10 (CAVH) - K43-11 (CAVL) Cable disconnected from negative (-) battery terminal 54 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  45

    Result: 

    OK 

    See step  9

  9. CHECK FOR SHORT TO +B IN CAN BUS LINE 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1278868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K43-10 (CAVH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K43-11 (CAVL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  28

    Result: 

    OK 

    See step  10

  10. CHECK FOR SHORT TO GND IN CAN BUS LINE 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1278868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K43-10 (CAVH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K43-11 (CAVL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    INSPECT FOR INTERMITTENT PROBLEMS 

    Refer to METHOD TO SIMULATE PROBLEM SYMPTOMS [12/2024 - ]

    Result: 

    NG 

    See step  11

  11. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Pre-procedure1

    • Disconnect the K103 No. 10 global CAN junction connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-11 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K103-22 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    See step  15

    Result: 

    OK 

    See step  12

  12. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - NO. 6 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-10 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K103-21 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  17

    Result: 

    OK 

    See step  13

  13. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Adaptive Variable Suspension System A
      w/o Adaptive Variable Suspension System B

    Result: 

    B 

    REPLACE NO. 10 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    A 

    See step  14

  14. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-9 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K103-20 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 10 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  16

  15. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Pre-procedure1

    • Disconnect the K43 central gateway ECU (network gateway ECU) connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-11 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K103-22 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  16. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 

    Pre-procedure1

    • Disconnect the S27 absorber control ECU connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-9 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K103-20 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ABSORBER CONTROL ECU 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 

  17. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - NO. 10 GLOBAL CAN JUNCTION CONNECTOR) 

    Pre-procedure1

    • Disconnect the K99 No. 6 global CAN junction connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-9 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K99-20 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - NO. 10 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  18

  18. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Trailer Brake Control System A
      w/o Trailer Brake Control System B

    Result: 

    B 

    See step  20

    Result: 

    A 

    See step  19

  19. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-11 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K99-22 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  24

    Result: 

    OK 

    See step  20

  20. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Stop and Start System A
      w/o Stop and Start System B

    Result: 

    B 

    See step  22

    Result: 

    A 

    See step  21

  21. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-7 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K99-18 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  25

    Result: 

    OK 

    See step  22

  22. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ECM) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-10 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K99-21 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  26

    Result: 

    OK 

    See step  23

  23. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-8 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K99-19 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 6 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  27

  24. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 

    Pre-procedure1

    • Disconnect the K40 trailer brake control ECU (brake control with bracket relay) connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-11 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K99-22 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY) 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 

  25. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU ASSEMBLY) 

    Pre-procedure1

    • Disconnect the K70 engine stop and start ECU assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-7 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K99-18 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ENGINE STOP AND START ECU ASSEMBLY 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU ASSEMBLY) 

  26. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ECM) 

    Pre-procedure1

    • Disconnect the A3 ECM connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-10 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K99-21 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ECM) 

  27. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 

    Pre-procedure1

    • Disconnect the A18 brake actuator assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-8 (CANH) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω
      K99-19 (CANL) - Body ground Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 

  28. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Pre-procedure1

    • Disconnect the K103 No. 10 global CAN junction connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-11 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K103-22 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    See step  32

    Result: 

    OK 

    See step  29

  29. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - NO. 6 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-10 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K103-21 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  34

    Result: 

    OK 

    See step  30

  30. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Adaptive Variable Suspension System A
      w/o Adaptive Variable Suspension System B

    Result: 

    B 

    REPLACE NO. 10 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    A 

    See step  31

  31. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-9 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K103-20 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 10 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  33

  32. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Pre-procedure1

    • Disconnect the K43 central gateway ECU (network gateway ECU) connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-11 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K103-22 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  33. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 

    Pre-procedure1

    • Disconnect the S27 absorber control ECU connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-9 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K103-20 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ABSORBER CONTROL ECU 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 

  34. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - NO. 10 GLOBAL CAN JUNCTION CONNECTOR) 

    Pre-procedure1

    • Disconnect the K99 No. 6 global CAN junction connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-9 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K99-20 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - NO. 10 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  35

  35. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Trailer Brake Control System A
      w/o Trailer Brake Control System B

    Result: 

    B 

    See step  37

    Result: 

    A 

    See step  36

  36. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-11 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K99-22 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  41

    Result: 

    OK 

    See step  37

  37. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Stop and Start System A
      w/o Stop and Start System B

    Result: 

    B 

    See step  39

    Result: 

    A 

    See step  38

  38. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-7 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K99-18 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  42

    Result: 

    OK 

    See step  39

  39. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ECM) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-10 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K99-21 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  43

    Result: 

    OK 

    See step  40

  40. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-8 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K99-19 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 6 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  44

  41. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 

    Pre-procedure1

    • Disconnect the K40 trailer brake control ECU (brake control with bracket relay) connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-11 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K99-22 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY) 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 

  42. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU ASSEMBLY) 

    Pre-procedure1

    • Disconnect the K70 engine stop and start ECU assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-7 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K99-18 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ENGINE STOP AND START ECU ASSEMBLY 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU ASSEMBLY) 

  43. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ECM) 

    Pre-procedure1

    • Disconnect the A3 ECM connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-10 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K99-21 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ECM) 

  44. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 

    Pre-procedure1

    • Disconnect the A18 brake actuator assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-8 (CANH) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ
      K99-19 (CANL) - Battery positive terminal Cable disconnected from negative (-) battery terminal 6 kΩ or higher kΩ

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 

  45. CHECK FOR SHORT IN CAN BUS LINES (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Pre-procedure1

    • Disconnect the K103 No. 10 global CAN junction connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-11 (CANH) - K103-22 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    See step  49

    Result: 

    OK 

    See step  46

  46. CHECK FOR SHORT IN CAN BUS LINES (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - NO. 6 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-10 (CANH) - K103-21 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    NG 

    See step  51

    Result: 

    OK 

    See step  47

  47. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Adaptive Variable Suspension System A
      w/o Adaptive Variable Suspension System B

    Result: 

    B 

    REPLACE NO. 10 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    A 

    See step  48

  48. CHECK FOR SHORT IN CAN BUS LINES (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-9 (CANH) - K103-20 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 10 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  50

  49. CHECK FOR SHORT IN CAN BUS LINES (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Pre-procedure1

    • Disconnect the K43 central gateway ECU (network gateway ECU) connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-11 (CANH) - K103-22 (CANL) Cable disconnected from negative (-) battery terminal 1 MΩ or higher MΩ

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  50. CHECK FOR SHORT IN CAN BUS LINES (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 

    Pre-procedure1

    • Disconnect the S27 absorber control ECU connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-9 (CANH) - K103-20 (CANL) Cable disconnected from negative (-) battery terminal 1 MΩ or higher MΩ

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ABSORBER CONTROL ECU 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 

  51. CHECK FOR SHORT IN CAN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - NO. 10 GLOBAL CAN JUNCTION CONNECTOR) 

    Pre-procedure1

    • Reconnect the K103 No. 10 global CAN junction connector.
    • Disconnect the K99 No. 6 global CAN junction connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-9 (CANH) - K99-20 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - NO. 10 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  52

  52. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Trailer Brake Control System A
      w/o Trailer Brake Control System B

    Result: 

    B 

    See step  54

    Result: 

    A 

    See step  53

  53. CHECK FOR SHORT IN CAN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-11 (CANH) - K99-22 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    NG 

    See step  58

    Result: 

    OK 

    See step  54

  54. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/ Stop and Start System A
      w/o Stop and Start System B

    Result: 

    B 

    See step  56

    Result: 

    A 

    See step  55

  55. CHECK FOR SHORT IN CAN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-7 (CANH) - K99-18 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    NG 

    See step  59

    Result: 

    OK 

    See step  56

  56. CHECK FOR SHORT IN CAN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ECM) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-10 (CANH) - K99-21 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    NG 

    See step  60

    Result: 

    OK 

    See step  57

  57. CHECK FOR SHORT IN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-8 (CANH) - K99-19 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 6 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  61

  58. CHECK FOR SHORT IN CAN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 

    Pre-procedure1

    • Disconnect the K40 trailer brake control ECU (brake control with bracket relay) connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-11 (CANH) - K99-22 (CANL) Cable disconnected from negative (-) battery terminal 1 MΩ or higher MΩ

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY) 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY)) 

  59. CHECK FOR SHORT IN CAN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU ASSEMBLY) 

    Pre-procedure1

    • Disconnect the K70 engine stop and start ECU assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-7 (CANH) - K99-18 (CANL) Cable disconnected from negative (-) battery terminal 1 MΩ or higher MΩ

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ENGINE STOP AND START ECU ASSEMBLY 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU ASSEMBLY) 

  60. CHECK FOR SHORT IN CAN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ECM) 

    Pre-procedure1

    • Disconnect the A3 ECM connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-10 (CANH) - K99-21 (CANL) Cable disconnected from negative (-) battery terminal 1 MΩ or higher MΩ

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - ECM) 

  61. CHECK FOR SHORT IN CAN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 

    Pre-procedure1

    • Disconnect the A18 brake actuator assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-8 (CANH) - K99-19 (CANL) Cable disconnected from negative (-) battery terminal 1 MΩ or higher MΩ

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 

  62. CHECK FOR OPEN IN CAN MAIN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) - NO. 10 GLOBAL CAN JUNCTION CONNECTOR) 

    Pre-procedure1

    • Disconnect the K43 central gateway ECU (network gateway ECU) connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K43-10 (CAVH) - K43-11 (CAVL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    See step  63

  63. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Pre-procedure1

    • Reconnect the K43 central gateway ECU (network gateway ECU) connector.
    • Disconnect the K103 No. 10 global CAN junction connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-11 (CANH) - K103-22 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Result: 

    OK 

    See step  64

  64. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 10 GLOBAL CAN JUNCTION CONNECTOR - NO. 6 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K103-10 (CANH) - K103-21 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 10 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  65

  65. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - NO. 10 GLOBAL CAN JUNCTION CONNECTOR) 

    Pre-procedure1

    • Reconnect the K103 No. 10 global CAN junction connector.
    • Disconnect the K99 No. 6 global CAN junction connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-9 (CANH) - K99-20 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - NO. 10 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  66

  66. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K99-8 (CANH) - K99-19 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 6 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  67

  67. CHECK FOR OPEN IN CAN MAIN BUS LINES (BRAKE ACTUATOR ASSEMBLY) 

    Pre-procedure1

    • Reconnect the K99 No. 6 global CAN junction connector.
    • Disconnect the A18 brake actuator assembly connector.
    • Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      A18-16 (CA2H) - A18-17 (CA2L) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Ω

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY 

    Refer to REMOVAL [12/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 6 GLOBAL CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY) 

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.