DYNAMIC RADAR CRUISE CONTROL SYSTEM(for 2GR-FE, 2AR-FE), Diagnostic DTC:P1630

DTC Code DTC Name
P1630 Communication Error from VSC to ECM

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 dynamic radar cruise control system is operating.

DTC No. DTC Detection Condition Trouble Area
P1630 While the vehicle speed is 40 km/h (or 25 mph) or more and the dynamic radar cruise control system is operating (vehicle-to-vehicle distance control mode), if communication data from the skid control ECU (brake actuator assembly) is logically inconsistent for approximately 0.5 seconds or more.

  • Communication circuit

  • Skid control ECU (brake actuator assembly)

  • ECM

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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

      OK
      CAN communication system is functioning normally.

      Tech Tips

      Refer to CAN Bus Check for the CAN communication system Click here.


    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  2. REPLACE BRAKE ACTUATOR ASSEMBLY

    Click here


    NEXT

  3. CHECK FOR DTCs (DTC P1630)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Clear the DTCs Click here.

    4. Make sure that the DTC detection conditions are met.

      Tech Tips

      If the detection conditions are not met, the system cannot detect the malfunction.

    5. Enter the following menus: Powertrain / Radar Cruise1 / Trouble Codes.

    6. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC is not output A
      DTC P1630 is output (for 2GR-FE) B
      DTC P1630 is output (for 2AR-FE) C

    7. Turn the engine switch off.


    A

    END

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here