CAN COMMUNICATION SYSTEM(for RHD), Diagnostic DTC:U0265

DTC Code DTC Name
U0265 Lost Communication with Parking Assist Monitor Module

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

U0265

Lost Communication with Parking Assist Monitor Module

There is no communication from the television camera assembly.

  • Power source or inside television camera assembly

  • Television camera assembly CAN branch wire or connector

  • Television camera assembly

  • Navigation receiver assembly*1

  • Radio and display receiver assembly*2

Main body ECU(multiplex network body ECU)

  • *1: w/ Navigation System

  • *2: w/ Audio and Visual System (for Radio and Display Type)

  • For vehicles with a parking assist monitor system (for camera built-in ECU).

WIRING DIAGRAM

C297921E02
C297921E03

CAUTION / NOTICE / HINT

Note:

  • Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

    Click here

  • 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, 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.

  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work.

    Click hereClick hereClick here

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

  • DTC check procedure: Turn the ignition switch to ON and wait at least 20 seconds.

  • After the repair, perform CAN Bus Check and check that all the ECUs and sensors connected to the CAN communication system are displayed.

    Click hereClick here

Tip:

  • Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

  • Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.

PROCEDURE

  1. CHECK FOR DTC

    1. Check for DTCs.

      Body Electrical > Main Body > Trouble Codes

      Tip:

      If DTC U1002 is output from gateway of the main body ECU (multiplex network body ECU), this indicates a sub bus 1 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 1.

    Result

    Result

    Proceed to

    DTC U1002 is not output from main body ECU (multiplex network body ECU)

    A

    DTC U1002 is output from main body ECU (multiplex network body ECU)

    B
    B

    GO TO GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC

    Click here

    A

  2. CHECK FOR OPEN IN CAN BUS WIRE (TELEVISION CAMERA ASSEMBLY CAN BRANCH WIRE)

    1. C297923C01

      *a

      Front view of wire harness connector

      (to Television Camera Assembly)

      Disconnect the cable from the negative (-) battery terminal.

    2. Disconnect the television camera assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      U22-4 (CANH) - U22-1 (CANL)

      Cable disconnected from negative (-) battery terminal

      54 to 69 Ω

    Result

    Proceed to

    OK (w/ Audio and Visual System [for Radio and Display Type])

    OK (w/ Navigation System)

    NG
    OK (w/ Navigation System)

    CHECK NAVIGATION RECEIVER ASSEMBLYClick here

    NG

    REPAIR OR REPLACE TELEVISION CAMERA ASSEMBLY CAN BRANCH WIRE OR CONNECTOR

    OK (w/ Audio and Visual System [for Radio and Display Type])

  3. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

    1. C297923C02

      *a

      Front view of wire harness connector

      (to Television Camera Assembly)

      Connect the cable to the negative (-) battery terminal.

      Note:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

      Click hereClick hereClick here

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      U22-6 (CB+) - Body ground

      Ignition switch ACC

      5.5 to 7.05 V

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      U22-5 (CGND) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE TELEVISION CAMERA ASSEMBLY

    Click here

    NG

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

    1. Disconnect the G159 radio and display receiver assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      U22-6 (CB+) - G159-11 (CA+)

      Always

      Below 1 Ω

      U22-5 (CGND) - G159-23 (CGND)

      Always

      Below 1 Ω

      U22-6 (CB+) or G159-11 (CA+) - Body ground

      Always

      10 kΩ or higher

      U22-5 (CGND) or G159-23 (CGND) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. CHECK NAVIGATION RECEIVER ASSEMBLY

    1. C297923C02

      *a

      Front view of wire harness connector

      (to Television Camera Assembly)

      Connect the cable to the negative (-) battery terminal.

      Note:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

      Click hereClick hereClick here

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      U22-6 (CB+) - Body ground

      Ignition switch ACC

      5.5 to 7.05 V

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      U22-5 (CGND) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE TELEVISION CAMERA ASSEMBLY

    Click here

    NG

  6. CHECK HARNESS AND CONNECTOR (TELEVISION CAMERA ASSEMBLY - NAVIGATION RECEIVER ASSEMBLY)

    1. Disconnect the G158 navigation receiver assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      U22-6 (CB+) - G158-11 (CA+)

      Always

      Below 1 Ω

      U22-5 (CGND) - G158-23 (CGND)

      Always

      Below 1 Ω

      U22-6 (CB+) or G158-11 (CA+) - Body ground

      Always

      10 kΩ or higher

      U22-5 (CGND) or G158-23 (CGND) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR