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Check Bus 5 Line [09/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR OPEN IN CAN MAIN BUS LINES 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Measure the resistance according to the value(s) in the table below.
      GTY1238596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      D48-7 (CA5H) - D48-8 (CA5L) Cable disconnected from negative (-) auxiliary battery terminal Below 70 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  53

    Result: 

    OK 

    See step  2

  2. CHECK FOR SHORT IN CAN BUS LINES 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1238596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      D48-7 (CA5H) - D48-8 (CA5L) Cable disconnected from negative (-) auxiliary battery terminal 54 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  37

    Result: 

    OK 

    See step  3

  3. CHECK FOR SHORT TO +B IN CAN BUS LINE 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1238596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      D48-7 (CA5H) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D48-8 (CA5L) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  21

    Result: 

    OK 

    See step  4

  4. CHECK FOR SHORT TO GND IN CAN BUS LINE 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1238596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Central Gateway ECU (Network Gateway ECU))

      Standard Resistance

      Tester Connection Condition Specified Condition
      D48-7 (CA5H) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D48-8 (CA5L) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU). Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    See step  5

  5. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the D64 No. 4 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-2 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D64-8 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  10

    Result: 

    OK 

    See step  6

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-5 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D64-11 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  14

    Result: 

    OK 

    See step  7

  7. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-1 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D64-7 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  11

    Result: 

    OK 

    See step  8

  8. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-3 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D64-9 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  12

    Result: 

    OK 

    See step  9

  9. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-4 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D64-10 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 4 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  13

  10. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the D48 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-2 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D64-8 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU). Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  11. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Disconnect the D34 air conditioning amplifier assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-1 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D64-7 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 

  12. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Disconnect the D38 certification ECU (smart key ECU assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-3 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D64-9 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [09/2023 - 12/2023]  , or refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 

  13. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 
    1. Disconnect the D27 multiplex tilt and telescopic ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-4 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      D64-10 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU. Refer to  REMOVAL [09/2023 - 12/2023]  , or refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 

  14. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Disconnect the J49 No. 12 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-3 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      J49-10 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  15

  15. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - POSITION CONTROL ECU ASSEMBLY LH) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-1 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      J49-8 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  18

    Result: 

    OK 

    See step  16

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-7 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      J49-14 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  19

    Result: 

    OK 

    See step  17

  17. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-5 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      J49-12 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 12 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  20

  18. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - POSITION CONTROL ECU ASSEMBLY LH) 
    1. Disconnect the O23 position control ECU assembly LH connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-1 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      J49-8 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POSITION CONTROL ECU ASSEMBLY LH. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - POSITION CONTROL ECU ASSEMBLY LH) 

  19. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU) 
    1. Disconnect the M20 multiplex network door ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-7 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      J49-14 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MULTIPLEX NETWORK DOOR ECU. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU) 

  20. CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Disconnect the D32 main body ECU (multiplex network body ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-5 (CANH) - Body ground Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      J49-12 (CANL) - Body ground

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 

  21. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the D64 No. 4 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-2 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D64-8 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  26

    Result: 

    OK 

    See step  22

  22. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - NO. 12 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-5 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D64-11 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  30

    Result: 

    OK 

    See step  23

  23. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-1 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D64-7 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  27

    Result: 

    OK 

    See step  24

  24. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-3 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D64-9 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  28

    Result: 

    OK 

    See step  25

  25. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-4 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D64-10 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 4 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  29

  26. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the D48 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-2 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D64-8 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU). Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  27. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Disconnect the D34 air conditioning amplifier assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-1 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D64-7 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 

  28. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Disconnect the D38 certification ECU (smart key ECU assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-3 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D64-9 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [09/2023 - 12/2023]  , or refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 

  29. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 
    1. Disconnect the D27 multiplex tilt and telescopic ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-4 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      D64-10 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU. Refer to  REMOVAL [09/2023 - 12/2023]  , or refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 

  30. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Disconnect the J49 No. 12 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-3 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      J49-10 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  31

  31. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - POSITION CONTROL ECU ASSEMBLY LH) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-1 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      J49-8 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  34

    Result: 

    OK 

    See step  32

  32. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-7 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      J49-14 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  35

    Result: 

    OK 

    See step  33

  33. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-5 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      J49-12 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 12 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  36

  34. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - POSITION CONTROL ECU ASSEMBLY LH) 
    1. Disconnect the O23 position control ECU assembly LH connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-1 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      J49-8 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POSITION CONTROL ECU ASSEMBLY LH. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - POSITION CONTROL ECU ASSEMBLY LH) 

  35. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU) 
    1. Disconnect the M20 multiplex network door ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-7 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      J49-14 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MULTIPLEX NETWORK DOOR ECU. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU) 

  36. CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Disconnect the D32 main body ECU (multiplex network body ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-5 (CANH) - Battery positive terminal Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      J49-12 (CANL) - Battery positive terminal

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 

  37. CHECK FOR SHORT IN CAN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the D64 No. 4 global CAN junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-2 (CANH) - D64-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  42

    Result: 

    OK 

    See step  38

  38. CHECK FOR SHORT IN CAN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - NO. 12 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-5 (CANH) - D64-11 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  46

    Result: 

    OK 

    See step  39

  39. CHECK FOR SHORT IN CAN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-1 (CANH) - D64-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  43

    Result: 

    OK 

    See step  40

  40. CHECK FOR SHORT IN CAN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-3 (CANH) - D64-9 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  44

    Result: 

    OK 

    See step  41

  41. CHECK FOR SHORT IN CAN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-4 (CANH) - D64-10 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 4 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  45

  42. CHECK FOR SHORT IN CAN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the D48 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-2 (CANH) - D64-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU). Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

  43. CHECK FOR SHORT IN CAN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Disconnect the D34 air conditioning amplifier assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-1 (CANH) - D64-7 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 

  44. CHECK FOR SHORT IN CAN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 
    1. Disconnect the D38 certification ECU (smart key ECU assembly) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-3 (CANH) - D64-9 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [09/2023 - 12/2023]  , or refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 

  45. CHECK FOR SHORT IN CAN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 
    1. Disconnect the D27 multiplex tilt and telescopic ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-4 (CANH) - D64-10 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU. Refer to  REMOVAL [09/2023 - 12/2023]  , or refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 

  46. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Reconnect the D64 No. 4 global CAN junction connector.
    2. Disconnect the J49 No. 12 global CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-3 (CANH) - J49-10 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  47

  47. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - POSITION CONTROL ECU ASSEMBLY LH) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-1 (CANH) - J49-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  50

    Result: 

    OK 

    See step  48

  48. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-7 (CANH) - J49-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  51

    Result: 

    OK 

    See step  49

  49. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-5 (CANH) - J49-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 12 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  52

  50. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - POSITION CONTROL ECU ASSEMBLY LH) 
    1. Disconnect the O23 position control ECU assembly LH connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-1 (CANH) - J49-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POSITION CONTROL ECU ASSEMBLY LH. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - POSITION CONTROL ECU ASSEMBLY LH) 

  51. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU) 
    1. Disconnect the M20 multiplex network door ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-7 (CANH) - J49-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MULTIPLEX NETWORK DOOR ECU. Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MULTIPLEX NETWORK DOOR ECU) 

  52. CHECK FOR SHORT IN CAN BUS LINES (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Disconnect the D32 main body ECU (multiplex network body ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-5 (CANH) - J49-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 

  53. CHECK FOR OPEN IN CAN MAIN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Disconnect the D48 central gateway ECU (network gateway ECU) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D48-7 (CA5H) - D48-8 (CA5L) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU). Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    See step  54

  54. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 
    1. Reconnect the D48 central gateway ECU (network gateway ECU) connector.
    2. Disconnect the D64 No. 4 global CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-2 (CANH) - D64-8 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

    Result: 

    OK 

    See step  55

  55. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 4 GLOBAL CAN JUNCTION CONNECTOR - NO. 12 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D64-5 (CANH) - D64-11 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 4 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  56

  56. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 GLOBAL CAN JUNCTION CONNECTOR) 
    1. Reconnect the D64 No. 4 global CAN junction connector.
    2. Disconnect the J49 No. 12 global CAN junction connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-3 (CANH) - J49-10 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - NO. 4 GLOBAL CAN JUNCTION CONNECTOR) 

    Result: 

    OK 

    See step  57

  57. CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 12 GLOBAL CAN JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J49-5 (CANH) - J49-12 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 12 GLOBAL CAN JUNCTION CONNECTOR 

    Result: 

    NG 

    See step  58

  58. CHECK FOR OPEN IN CAN MAIN BUS LINES (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) 
    1. Reconnect the J49 No. 12 global CAN junction connector.
    2. Disconnect the D32 main body ECU (multiplex network body ECU) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D32-2 (CANH) - D32-1 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [09/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - NO. 12 GLOBAL CAN JUNCTION CONNECTOR) 

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