SPEED LIMITER SYSTEM, Diagnostic DTC:U012200

DTC Code DTC Name
U012200 Lost Communication with Vehicle Dynamics Control Module

DESCRIPTION

The ECM communicates with each sensor and ECU via CAN communication.

If there are any malfunctions in the communication circuit, one or more CAN communication system DTCs are stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
U012200 Lost Communication with Vehicle Dynamics Control Module While speed limiter is operating, communication stop between brake actuator assembly (skid control ECU) and ECM is detected.

  • CAN communication circuit

  • Brake actuator assembly (skid control ECU)

  • ECM

CAUTION / NOTICE / HINT

Note

When this DTC is stored, speed limiter system operation will be prohibited. Even after DTCs are cleared, operation of the speed limiter system will remain prohibited until the following is performed.

- Turn the ignition switch from off to on (IG), drive the vehicle at a speed of 15 km/h or more for at least 10 seconds, then turn the speed limiter system on.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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

      w/o Central Gateway ECU: Click here

      w/ Central Gateway ECU: Click here

      Result
      Result Proceed to
      CAN communication is normal A
      CAN communication is malfunctioning B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM w/o Central Gateway ECU: Click here
    GO TO CAN COMMUNICATION SYSTEM w/ Central Gateway ECU: Click here