CRUISE CONTROL SYSTEM, Diagnostic DTC:U0073, U0101, U0122, U0155, U0402, U0416, U0423

DTC Code DTC Name
U0073 Control Module Communication Bus "A" Off
U0101 Lost Communication with TCM
U0122 Lost Communication with Vehicle Dynamics Control Module
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module
U0402 Invalid Data Received from TCM
U0416 Invalid Data Received from Vehicle Dynamics Control Module
U0423 Invalid Data Received from Instrument Panel Cluster Control Module

DESCRIPTION

The ECM communicates several signals with each sensor and ECU by CAN communication circuit.

There are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.

DTC Code DTC Detection Condition Trouble Area
U0073

Bus off state for 0.436 seconds or more

(1 trip detection logic)

  • Wire harness (CANL and CANH circuits)

  • ECM
U0101

No communication between ECM and TCM for 0.5 seconds or more

(1 trip detection logic)

  • Wire harness (CANL and CANH circuits)

  • TCM

  • ECM
U0122

No communication between ECM and skid control ECU for 0.5 seconds or more

(1 trip detection logic)

  • Wire harness (CANL and CANH circuits)

  • Skid control ECU (Brake actuator assembly)

  • ECM
U0155

No communication between ECM and combination meter assembly for 0.5 seconds or more

(1 trip detection logic)

  • Wire harness (CANL and CANH circuits)

  • Combination meter assembly

  • ECM
U0402

Invalid data received from TCM for 2 seconds or more

(1 trip detection logic)

  • Wire harness (CANL and CANH circuits)

  • TCM

  • ECM
U0416

Invalid data received from skid control ECU for 2 seconds or more

(1 trip detection logic)

  • Wire harness (CANL and CANH circuits)

  • Skid control ECU (Brake actuator assembly)

  • ECM
U0423

Invalid data received from combination meter assembly for 2 seconds or more

(1 trip detection logic)

  • Wire harness (CANL and CANH circuits)

  • Combination meter assembly

  • ECM

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Cruise Control / Trouble Codes.

    5. Read the DTCs.

      Result
      Result Proceed to
      DTC U0073, U0101, U0122, U0155, U0402, U0416 or U0423 is output A
      DTC U0073, U0101, U0122, U0155, U0402, U0416 or U0423 and other DTCs are output B

    A

    GO TO CAN COMMUNICATION SYSTEM Click here

    B

    GO TO DTC CHART Click here