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. Detection Item DTC Detection Condition Trouble Area DTC Output from
U0265 Lost Communication with Parking Assist Monitor Module There is no communication from the rear television camera assembly.

  • Rear television camera assembly CAN branch wire or connector

  • Power source circuit of rear television camera assembly

  • Rear television camera assembly ground circuit

  • Rear television camera assembly

 Main body ECU (multiplex network body ECU)

WIRING DIAGRAM

B001IIOE02

CAUTION / NOTICE / HINT

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

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 here

  • DTC check procedure: Turn the ignition switch to ON, wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.

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

    Click here

Tech Tips


  • Operating the ignition 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. Check for DTCs.

      Tech Tips

      If DTC U1002 is output from the gateway of the network gateway ECU, this indicates a sub bus 2 malfunction. Troubleshoot for DTC U1002 and check for malfunctions in sub bus 2.

      Result
      Result Proceed to
      U1002 is not output from network gateway ECU A
      U1002 is output from network gateway ECU B

    B

    GO TO DIAGNOSIS PROCEDURE INDICATED BY OUTPUT DTC Click here

    A

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


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

    2. B001E72C25
      *A w/o Tire Carrier
      *B w/ Tire Carrier
      *a

      Front view of wire harness connector

      (to Rear Television Camera Assembly)

      Disconnect the rear television camera assembly connector.

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

      Standard Resistance
      w/o Tire Carrier
      Tester Connection Condition Specified Condition
      X10-4 (CANH) - X10-1 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      w/ Tire Carrier
      Tester Connection Condition Specified Condition
      v3-4 (CANH) - v3-1 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)


    1. B001E72C26
      *A w/o Tire Carrier
      *B w/ Tire Carrier
      *a

      Front view of wire harness connector

      (to Rear Television Camera Assembly)

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

      Standard Resistance
      w/o Tire Carrier
      Tester Connection Condition Specified Condition
      X10-5 (CGND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω
      w/ Tire Carrier
      Tester Connection Condition Specified Condition
      v3-5 (CGND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω

    2. Reconnect the cable to the negative (-) battery terminal.

      Note

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

      Click here

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

      Standard Voltage
      w/o Tire Carrier
      Tester Connection Switch Condition Specified Condition
      X10-6 (CB+) - Body ground Ignition switch ON 5.5 to 7.05 V
      Ignition switch off Below 1 V
      w/ Tire Carrier
      Tester Connection Switch Condition Specified Condition
      v3-6 (CB+) - Body ground Ignition switch ON 5.5 to 7.05 V
      Ignition switch off Below 1 V
      Result
      Result Proceed to
      OK A
      NG (w/ Audio and Visual System) B
      NG (w/ Navigation System) C

    A

    REPLACE REAR TELEVISION CAMERA ASSEMBLY w/ Tire Carrier: Click here
    REPLACE REAR TELEVISION CAMERA ASSEMBLY w/o Tire Carrier: Click here

    C

    CHECK HARNESS AND CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY - NAVIGATION RECEIVER ASSEMBLY [EMVN ECU]) Click here

    B

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


    1. Disconnect the H50 radio and display receiver assembly (EMVN ECU) connector.

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

      Standard Resistance
      w/o Tire Carrier
      Tester Connection Condition Specified Condition
      X10-5 (CGND) - H50-23 (CGND) Always Below 1 Ω
      X10-6 (CB+) - H50-11 (CA+)
      X10-5 (CGND) - X10-6 (CB+) Always 10 kΩ or higher
      w/ Tire Carrier
      Tester Connection Condition Specified Condition
      v3-5 (CGND) - H50-23 (CGND) Always Below 1 Ω
      v3-6 (CB+) - H50-11 (CA+)
      v3-5 (CGND) - v3-6 (CB+) 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 (REAR TELEVISION CAMERA ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY [EMVN ECU])

  5. CHECK HARNESS AND CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY - NAVIGATION RECEIVER ASSEMBLY [EMVN ECU])


    1. Disconnect the H55 navigation receiver assembly (EMVN ECU) connector.

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

      Standard Resistance
      w/o Tire Carrier
      Tester Connection Condition Specified Condition
      X10-5 (CGND) - H55-23 (CGND) Always Below 1 Ω
      X10-6 (CB+) - H55-11 (CA+)
      X10-5 (CGND) - X10-6 (CB+) Always 10 kΩ or higher
      w/ Tire Carrier
      Tester Connection Condition Specified Condition
      v3-5 (CGND) - H55-23 (CGND) Always Below 1 Ω
      v3-6 (CB+) - v3-11 (CA+)
      v3-5 (CGND) - v3-6 (CB+) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY - NAVIGATION RECEIVER ASSEMBLY [EMVN ECU])