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Home >> Lexus >> 2023 >> LX 600 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System - Circuit Tests (1 Of 4) & Diagnostic Codes >> Can Communication System >> DTC U0122: CAN Communication Error (VSC); DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U1159-87: Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message; DTC U115C-00: Lost Communication with ECM/PCM "A" (ch5); DTC U115C-87: Lost Communication with ECM/PCM "A" (ch5) Missing Message; DTC U1170-87: Lost Communication With Brake System Control Module (ch2) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [12/2021 - ] >> Procedure
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DTC U0122: CAN Communication Error (VSC); DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U1159-87: Lost Communication with Electronic Brake Booster Control Module "A" (ch3) Missing Message; DTC U115C-00: Lost Communication with ECM/PCM "A" (ch5); DTC U115C-87: Lost Communication with ECM/PCM "A" (ch5) Missing Message; DTC U1170-87: Lost Communication With Brake System Control Module (ch2) Missing Message; DTC U117D-87: Lost Communication with Brake System Control Module (ch4) Missing Message [12/2021 - ]: Procedure

  1. RECONFIRM DTC OUTPUT 
    1. Check for DTCs.

      Powertrain > Engine > Trouble Codes 

      Chassis > Adaptive Variable Suspension System > Trouble Codes 

      Powertrain > Stop and Start > Trouble Codes 

      Chassis > Brake Booster > Trouble Codes 

      Chassis > Brake/EPB > Trouble Codes 

      Display on GTS / Output DTC Pattern
      Pattern 1 Pattern 2 Pattern 3 Pattern 4 Pattern 5
      Engine U0129-87 ◦ - - - -
      Adaptive Variable Suspension System U0122 - ◦ - - -
      Stop and Start U1170-87 - - ◦ - -
      Brake Booster U115C-00 - - - ◦ -
      U117D-87 - - - ◦ -
      Brake/EPB U115C-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 WIRE (ECM MAIN WIRE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the B70 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B70-16 (CACH) - B70-15 (CACL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR 

  3. CHECK FOR OPEN IN CAN BUS WIRE (ABSORBER CONTROL ECU BRANCH WIRE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the Q11 absorber control ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q11-19 (CA2H) - Q11-18 (CA2L) Cable disconnected from negative (-) battery terminal 54 to 69 Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE ABSORBER CONTROL ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR 

  4. CHECK FOR OPEN IN CAN BUS WIRE (ENGINE STOP AND START ECU BRANCH WIRE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the I57 engine stop and start ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I57-15 (LC1H) - I57-16 (LC1L) Cable disconnected from negative (-) battery terminal 54 to 69 Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR 

  5. CHECK FOR OPEN IN CAN BUS WIRE (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU) BRANCH WIRE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the B19 brake booster with master cylinder assembly (No. 1 skid control ECU) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B19-35 (CA2H) - B19-36 (CA2L) Cable disconnected from negative (-) battery terminal 54 to 69 Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU). Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR 

  6. CHECK FOR OPEN IN CAN BUS WIRE (BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU) BRANCH WIRE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the B20 brake actuator assembly (No. 2 skid control ECU) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B20-16 (CA2H) - B20-17 (CA2L) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU). Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR 

  7. CHECK FOR OPEN IN CAN BUS WIRE 
    NOTE:

    Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.

    HINT: 

    Operating the ignition switch, any other switches or door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.

    1. Disconnect the cable from the negative (-) battery terminal.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q107-3 (CANH) - Q107-2 (CANL) Cable disconnected from negative (-) battery terminal Below 70 Ω
      GTY1059887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (No. 4 CAN Junction Terminal)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  74

    Result: 

    OK 

    See step  8

  8. CHECK FOR SHORT IN CAN BUS WIRES 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q107-3 (CANH) - Q107-2 (CANL) Cable disconnected from negative (-) battery terminal 54 Ω or higher
      GTY1059887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (No. 4 CAN Junction Terminal)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  53

    Result: 

    OK 

    See step  9

  9. CHECK FOR SHORT TO B+ IN CAN BUS WIRE 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q107-3 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      Q107-2 (CANL) - I76-16 (BAT)
      GTY1059887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (No. 4 CAN Junction Terminal)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  32

    Result: 

    OK 

    See step  10

  10. CHECK FOR SHORT TO GND IN CAN BUS WIRE 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q107-3 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      Q107-2 (CANL) - I76-4 (CG)
      GTY1059887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (No. 4 CAN Junction Terminal)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 4 CAN JUNCTION TERMINAL 

    Result: 

    NG 

    See step  11

  11. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 
    1. Disconnect the Q64 No. 13 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-11 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      Q64-22 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  17

    Result: 

    OK 

    See step  12

  12. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-8 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      Q64-19 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  29

    Result: 

    OK 

    See step  13

  13. CHECK VEHICLE TYPE 
    1. Check the vehicle type.

      Result

      Result Proceed to
      w/ Active Height Control Suspension A
      w/o Active Height Control Suspension B

    Result: 

    B 

    See step  15

    Result: 

    A 

    See step  14

  14. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-10 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      Q64-21 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  30

    Result: 

    OK 

    See step  15

  15. CHECK VEHICLE TYPE 
    1. Check the vehicle type.

      Result

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

    Result: 

    B 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    A 

    See step  16

  16. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 13 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
      Q64-9 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      Q64-20 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  31

  17. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Disconnect the I116 No. 14 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-3 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      I116-14 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 14 CAN JUNCTION CONNECTOR - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  18

  18. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - NO. 3 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-2 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      I116-13 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  21

    Result: 

    OK 

    See step  19

  19. CHECK VEHICLE TYPE 
    1. Check the vehicle type.

      Result

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

    Result: 

    B 

    REPLACE NO. 14 CAN JUNCTION CONNECTOR 

    Result: 

    A 

    See step  20

  20. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-4 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      I116-15 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 14 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  28

  21. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 
    1. Disconnect the B48 No. 3 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-2 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      B48-13 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  22

  22. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - ECM) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-4 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      B48-15 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  25

    Result: 

    OK 

    See step  23

  23. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-1 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      B48-12 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  26

    Result: 

    OK 

    See step  24

  24. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-3 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      B48-14 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 3 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  27

  25. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - ECM) 
    1. Disconnect the B70 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-4 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      B48-15 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - ECM) 

  26. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU)) 
    1. Disconnect the B20 brake actuator assembly (No. 2 skid control ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-1 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      B48-12 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU). Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU)) 

  27. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU)) 
    1. Disconnect the B19 brake booster with master cylinder assembly (No. 1 skid control ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-3 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      B48-14 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU). Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU)) 

  28. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 
    1. Disconnect the I57 engine stop and start ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-4 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      I116-15 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 14 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 

  29. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 
    1. Disconnect the Q107 No. 4 CAN junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-8 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      Q64-19 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 4 CAN JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 

  30. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) 
    1. Disconnect the Q11 suspension control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-10 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      Q64-21 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SUSPENSION CONTROL ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) 

  31. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 
    1. Disconnect the Q85 absorber control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-9 (CANH) - I76-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
      Q64-20 (CANL) - I76-4 (CG)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ABSORBER CONTROL ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 

  32. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 
    1. Disconnect the Q64 No. 13 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-11 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      Q64-22 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  38

    Result: 

    OK 

    See step  33

  33. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-8 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      Q64-19 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  50

    Result: 

    OK 

    See step  34

  34. CHECK VEHICLE TYPE 
    1. Check the vehicle type.

      Result

      Result Proceed to
      w/ Active Height Control Suspension A
      w/o Active Height Control Suspension B

    Result: 

    B 

    See step  36

    Result: 

    A 

    See step  35

  35. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-10 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      Q64-21 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  51

    Result: 

    OK 

    See step  36

  36. CHECK VEHICLE TYPE 
    1. Check the vehicle type.

      Result

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

    Result: 

    B 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    A 

    See step  37

  37. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 13 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
      Q64-9 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      Q64-20 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  52

  38. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Disconnect the I116 No. 14 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-3 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      I116-14 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 14 CAN JUNCTION CONNECTOR - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  39

  39. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - NO. 3 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-2 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      I116-13 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  42

    Result: 

    OK 

    See step  40

  40. CHECK VEHICLE TYPE 
    1. Check the vehicle type.

      Result

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

    Result: 

    B 

    REPLACE NO. 14 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    A 

    See step  41

  41. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-4 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      I116-15 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 14 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  49

  42. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 
    1. Disconnect the B48 No. 3 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-2 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      B48-13 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  43

  43. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - ECM) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-4 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      B48-15 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  46

    Result: 

    OK 

    See step  44

  44. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-1 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      B48-12 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  47

    Result: 

    OK 

    See step  45

  45. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-3 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      B48-14 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 3 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  48

  46. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - ECM) 
    1. Disconnect the B70 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-4 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      B48-15 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - ECM) 

  47. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU)) 
    1. Disconnect the B20 brake actuator assembly (No. 2 skid control ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-1 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      B48-12 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU). Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU)) 

  48. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU)) 
    1. Disconnect the B19 brake booster with master cylinder assembly (No. 1 skid control ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-3 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      B48-14 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU). Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU)) 

  49. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 
    1. Disconnect the I57 engine stop and start ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-4 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      I116-15 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 14 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 

  50. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 
    1. Disconnect the Q107 No. 4 CAN junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-8 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      Q64-19 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 4 CAN JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 

  51. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) 
    1. Disconnect the Q11 suspension control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-10 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      Q64-21 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SUSPENSION CONTROL ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) 

  52. CHECK FOR SHORT TO B+ IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 
    1. Disconnect the Q85 absorber control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-9 (CANH) - I76-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
      Q64-20 (CANL) - I76-16 (BAT)

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ABSORBER CONTROL ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 

  53. CHECK FOR SHORT IN CAN BUS WIRES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 
    1. Disconnect the Q64 No. 13 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-11 (CANH) - Q64-22 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  59

    Result: 

    OK 

    See step  54

  54. CHECK FOR SHORT IN CAN BUS WIRES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-8 (CANH) - Q64-19 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  71

    Result: 

    OK 

    See step  55

  55. CHECK VEHICLE TYPE 
    1. Check the vehicle type.

      Result

      Result Proceed to
      w/ Active Height Control Suspension A
      w/o Active Height Control Suspension B

    Result: 

    B 

    See step  57

    Result: 

    A 

    See step  56

  56. CHECK FOR SHORT IN CAN BUS WIRES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-10 (CANH) - Q64-21 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  72

    Result: 

    OK 

    See step  57

  57. CHECK VEHICLE TYPE 
    1. Check the vehicle type.

      Result

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

    Result: 

    B 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    A 

    See step  58

  58. CHECK FOR SHORT IN CAN BUS WIRES (NO. 13 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
      Q64-9 (CANH) - Q64-20 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  73

  59. CHECK FOR SHORT IN CAN BUS WIRES (NO. 14 CAN JUNCTION CONNECTOR - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Disconnect the I116 No. 14 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-3 (CANH) - I116-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 14 CAN JUNCTION CONNECTOR - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  60

  60. CHECK FOR SHORT IN CAN BUS WIRES (NO. 14 CAN JUNCTION CONNECTOR - NO. 3 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-2 (CANH) - I116-13 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  63

    Result: 

    OK 

    See step  61

  61. CHECK VEHICLE TYPE 
    1. Check the vehicle type.

      Result

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

    Result: 

    B 

    REPLACE NO. 14 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    A 

    See step  62

  62. CHECK FOR SHORT IN CAN BUS WIRES (NO. 14 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-4 (CANH) - I116-15 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 14 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  70

  63. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 
    1. Disconnect the B48 No. 3 CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-2 (CANH) - B48-13 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  64

  64. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION CONNECTOR - ECM) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-4 (CANH) - B48-15 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  67

    Result: 

    OK 

    See step  65

  65. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-1 (CANH) - B48-12 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  68

    Result: 

    OK 

    See step  66

  66. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION CONNECTOR - BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-3 (CANH) - B48-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 3 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  69

  67. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION CONNECTOR - ECM) 
    1. Disconnect the B70 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-4 (CANH) - B48-15 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - ECM) 

  68. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU)) 
    1. Disconnect the B20 brake actuator assembly (No. 2 skid control ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-1 (CANH) - B48-12 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU). Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - BRAKE ACTUATOR ASSEMBLY (NO. 2 SKID CONTROL ECU)) 

  69. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION CONNECTOR - BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU)) 
    1. Disconnect the B19 brake booster with master cylinder assembly (No. 1 skid control ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-3 (CANH) - B48-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU). Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (NO. 1 SKID CONTROL ECU)) 

  70. CHECK FOR SHORT IN CAN BUS WIRES (NO. 14 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 
    1. Disconnect the I57 engine stop and start ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-4 (CANH) - I116-15 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ENGINE STOP AND START ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 14 CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 

  71. CHECK FOR SHORT IN CAN BUS WIRES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 
    1. Disconnect the Q107 No. 4 CAN junction terminal connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-8 (CANH) - Q64-19 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 4 CAN JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 

  72. CHECK FOR SHORT IN CAN BUS WIRES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) 
    1. Disconnect the Q11 suspension control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-10 (CANH) - Q64-21 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SUSPENSION CONTROL ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) 

  73. CHECK FOR SHORT IN CAN BUS WIRES (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 
    1. Disconnect the Q85 absorber control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-9 (CANH) - Q64-20 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ABSORBER CONTROL ECU. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - ABSORBER CONTROL ECU) 

  74. CHECK FOR OPEN IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 
    1. Disconnect the Q64 No. 13 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-11 (CANH) - Q64-22 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  76

    Result: 

    OK 

    See step  75

  75. CHECK FOR OPEN IN CAN BUS WIRE (NO. 13 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q64-8 (CANH) - Q64-19 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 13 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  78

  76. CHECK FOR OPEN IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Reconnect the Q63 No. 13 global CAN junction connector.
    2. Disconnect the I116 No. 14 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-3 (CANH) - I116-14 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 14 CAN JUNCTION CONNECTOR - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  77

  77. CHECK FOR OPEN IN CAN BUS WIRE (NO. 14 CAN JUNCTION CONNECTOR - NO. 3 CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I116-2 (CANH) - I116-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 14 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  79

  78. CHECK FOR OPEN IN CAN BUS WIRE (NO. 4 CAN JUNCTION TERMINAL - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Reconnect the Q64 No. 13 global CAN junction connector.
    2. Disconnect the Q107 No. 4 CAN junction terminal connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Q107-3 (CANH) - Q107-2 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 4 CAN JUNCTION TERMINAL 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 4 CAN JUNCTION TERMINAL - NO. 13 GLOBAL CAN JUNCTION CONNECTOR) 

  79. CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 
    1. Reconnect the I116 No. 14 CAN junction connector.
    2. Disconnect the B48 No. 3 CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-2 (CANH) - B48-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (NO. 3 CAN JUNCTION CONNECTOR - NO. 14 CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  80

  80. CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 CAN JUNCTION CONNECTOR - ECM) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B48-4 (CANH) - B48-15 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 3 CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  81

  81. CHECK FOR OPEN IN CAN BUS WIRE (ECM - NO. 3 CAN JUNCTION CONNECTOR) 
    1. Reconnect the B48 No. 3 CAN junction connector.
    2. Disconnect the B70 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B70-16 (CACH) - B70-15 (CACL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BUS WIRE OR CONNECTOR (ECM - NO. 3 CAN JUNCTION CONNECTOR) 

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