CAN COMMUNICATION SYSTEM(w/ Central Gateway ECU), Diagnostic DTC:U0265

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

DESCRIPTION

DTC No. DTC Detection Condition Trouble Area
U0265 No communication from the rear television camera assembly continues.

  • Rear television camera assembly branch line or connector

  • Power source circuit of rear television camera assembly

  • Rear television camera assembly ground circuit

  • Rear television camera assembly

Tech Tips

This diagnosis procedure is for when DTC U0265 is output by the main body ECU (multiplex network body ECU) (GTS display: Main Body).

WIRING DIAGRAM

A00088LE14

CAUTION / NOTICE / HINT

Note


  • Before measuring the resistance of the CAN bus, turn the power 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 (-) auxiliary battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.

  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work Click here.

  • 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.

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

  • DTC check procedure: Turn the power switch on (IG), wait at least 20 seconds.

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

Tech Tips


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

  • 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. RECONFIRM DTC OUTPUT


    1. Reconfirm DTCs.

      Tech Tips

      If DTC U1002 is output from Main Body 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 the sub bus 1.

      Result
      Result Proceed to
      U1002 is not output from main body ECU (multiplex network body ECU) (GTS display: Main Body) A
      U1002 is output from main body ECU (multiplex network body ECU) (GTS display: Main Body) B

    B

    GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC Click here

    A

  2. RECONFIRM DTC OUTPUT (PARKING ASSIST SYSTEM)


    1. Reconfirm DTCs.

    2. Enter the following menus: Chassis / Advanced Parking Guidance/Parking Assist Monitor / Trouble Codes.

      Result
      Result Proceed to
      C1621 is not output. A
      C1621 is output. B

    B

    GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC Click here

    A

  3. CHECK FOR OPEN IN SUB BUS 1 LINES (REAR TELEVISION CAMERA ASSEMBLY BRANCH LINE)


    1. Turn the power switch off.

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

    3. A0005NJE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Rear Television Camera Assembly)

      Disconnect the rear television camera assembly connector.

    4. 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 (-) auxiliary battery terminal 54 to 69 Ω

    OK

    REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here

    NG

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