CRUISE CONTROL SYSTEM(for 8AR-FTS, 2GR-FKS), Diagnostic DTC:P163081

DTC Code DTC Name
P163081 Communication Error from VSC to ECM Invalid Serial Data Received

DESCRIPTION

The skid control ECU (brake actuator assembly) sends signals such as cruise control cancel signals and brake demand response signals to the ECM when the cruise control system is operating.

DTC No. Detection Item DTC Detection Condition Trouble Area
P163081 Communication Error from VSC to ECM Invalid Serial Data Received While the cruise control system is either preparing for operation or operating, communication data from the skid control ECU (brake actuator assembly) is logically inconsistent for a certain amount of time.

  • CAN communication circuit

  • Skid control ECU (brake actuator assembly)

  • ECM

CAUTION / NOTICE / HINT

Note


  • First check the CAN communication systems by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed to troubleshooting.

    Click here

  • Before replacing the ECM, refer to Service Bulletin.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Using the GTS, check if the CAN communication system is functioning normally.

      Click here

      Result
      Result Proceed to
      CAN communication is normal OK
      CAN communication is malfunctioning NG

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  2. REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)


    1. Replace the skid control ECU (brake actuator assembly).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK FOR DTCS (DTC P163081)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Clear the DTCs.

      Click here


      Powertrain > Cruise Control > Clear DTCs

    4. Perform the following to make sure that the DTC detection conditions are met.

      Tech Tips

      If the detection conditions are not met, the malfunction cannot be detected.


      1. Drive the vehicle at a speed for which cruise control system operation is possible.

      2. Turn the cruise control system on using the cruise control main switch (ON/OFF button).

      3. Push the cruise control main switch to -/SET to begin control of vehicle speed using the cruise control system.

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

    6. Check for DTCs.

      Click here


      Powertrain > Cruise Control > Trouble Codes
      Result
      Result Proceed to
      DTC P163081 is not output A
      DTC P163081 is output B

    A

    END

    B

    REPLACE ECM for 8AR-FTS: Click here
    REPLACE ECM for 2GR-FKS: Click here