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Home >> Lexus >> 2024 >> NX 250 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (Can Communication System - Circuit Tests (2 Of 9)) >> CAN COMMUNICATION SYSTEM (for HEV Model) >> Rear Television Camera Communication Stop Mode [11/2021 - ] >> Procedure

Rear Television Camera Communication Stop Mode [11/2021 - ]: Procedure

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  1. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      w/o Parking Support Brake System A
      w/ Parking Support Brake System B

    Result: 

    See step  5

    Result: 

    See step  2

  2. CHECK FOR OPEN IN CAN BUS LINES (REAR TELEVISION CAMERA ASSEMBLY BRANCH LINE) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the P28 rear television camera assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      P28-1 (CANH) - P28-2 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Result 
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY) 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      P28-3 (CGND) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
    2. Reconnect the cable to the negative (-) auxiliary battery terminal.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      P28-4 (CB+) - Body ground Ignition switch ACC 5.5 to 7.05 V

      Result

      Result 
      OK
      NG

    Result: 

    OK 

    REPLACE REAR TELEVISION CAMERA ASSEMBLY. Refer to  REMOVAL [11/2021 - 03/2024]  , or refer to  REMOVAL [03/2024 - ] 

    Result: 

    NG 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY) 

    Refer to Image from Camera for Parking Assist Monitor is Abnormal [11/2021 - ]

    Result

    Result 
    OK
    NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

  5. CHECK FOR OPEN IN CAN BUS LINES (REAR TELEVISION CAMERA ASSEMBLY BRANCH LINE) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the P29 rear television camera assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      P29-1 (CANH) - P29-2 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Result 
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY) 

    Result: 

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      P29-3 (CGND) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
    2. Reconnect the cable to the negative (-) auxiliary battery terminal.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      P29-4 (CB+) - Body ground Ignition switch ACC 5.5 to 7.05 V

      Result

      Result 
      OK
      NG

    Result: 

    OK 

    REPLACE REAR TELEVISION CAMERA ASSEMBLY. Refer to  REMOVAL [11/2021 - 03/2024]  , or refer to  REMOVAL [03/2024 - ] 

    Result: 

    NG 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY) 

    Refer to Image from Camera for Parking Assist Monitor is Abnormal [11/2021 - ]

    Result

    Result 
    OK
    NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)