DYNAMIC RADAR CRUISE CONTROL SYSTEM, 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. Detection Item DTC Detection Condition Trouble Area
P1630 Communication Error from VSC to ECM While the vehicle speed is 40 km/h (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.

      for LHD with Central Gateway ECU: Click here

      for RHD with Central Gateway ECU: Click here

      Result
      Proceed to
      OK
      NG

    NG

    GO TO CAN COMMUNICATION SYSTEM for LHD with Central Gateway ECU: Click here
    GO TO CAN COMMUNICATION SYSTEM for RHD with Central Gateway ECU: 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


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Clear the DTCs.

      Click here


      1. for 2AD-FHV, 2AD-FTV:


        Powertrain > Radar Cruise1 > Clear DTCs

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:


        Powertrain > Radar Cruise1 > Clear DTCs

      3. for 2WW:


        Powertrain > Cruise Control > Clear DTCs

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

      Tech Tips

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


      1. Turn the ignition switch to ON.

      2. Turn the dynamic radar cruise control system on using the cruise control switch (ON/OFF).

      3. Drive the vehicle at 40 km/h (25 mph) or more for 0.5 seconds or more.

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

    6. Check for DTCs.

      Click here


      1. for 2AD-FHV, 2AD-FTV:


        Powertrain > Radar Cruise1 > Trouble Codes

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:


        Powertrain > Radar Cruise1 > Trouble Codes

      3. for 2WW:


        Powertrain > Cruise Control > Trouble Codes
      Result
      Result Proceed to
      DTC P1630 is not output A
      DTC P1630 is output B

    A

    END

    B

    REPLACE ECM for 2AD-FHV: Click here
    REPLACE ECM for 2AD-FTV: Click here
    REPLACE ECM for 2AR-FE: Click here
    REPLACE ECM for 3ZR-FAE: Click here
    REPLACE ECM for 3ZR-FE: Click here
    REPLACE ECM for 2WW: Click here