CAN COMMUNICATION SYSTEM, Diagnostic DTC:U1119

DTC Code DTC Name
U1119 Lost Communication with Object Recognition ECU (CAN)

DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
U1119 There is no communication from the lane recognition camera sensor assembly.

  • Power source circuit of lane recognition camera sensor assembly

  • Lane recognition camera sensor assembly

  • Lane recognition camera sensor assembly branch wire or connector

WIRING DIAGRAM

A006U63E02

INSPECTION PROCEDURE

Note

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

Tech Tips

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

PROCEDURE


  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL


    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

      Note


      • w/ Navigation System (for HDD)

        After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.

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


    NEXT

  2. CHECK FOR OPEN IN CAN BUS WIRE (LANE RECOGNITION CAMERA SENSOR BRANCH WIRE)


    1. A006VRGE01
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Lane Recognition Camera Sensor Assembly)

      Disconnect the K10 lane recognition camera sensor assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      K10-1 (CA1P) - K10-2 (CA1N) Ignition switch off 54 to 69 Ω

    NG

    REPAIR OR REPLACE LANE RECOGNITION CAMERA SENSOR BRANCH WIRE OR CONNECTOR (CA1P, CA1N)

    OK

  3. CHECK HARNESS AND CONNECTOR (LANE RECOGNITION CAMERA SENSOR - BATTERY AND BODY GROUND)


    1. 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 here.

    2. A006VRGE02
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Lane Recognition Camera Sensor Assembly)

      Disconnect the K10 lane recognition camera sensor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K10-4 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      K10-8 (IGB) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE LANE RECOGNITION CAMERA SENSOR ASSEMBLY Click here