MANUAL TRANSAXLE SYSTEM, Diagnostic DTC:U010087

DTC Code DTC Name
U010087 Lost Communication with ECM/PCM "A" Missing Message

DESCRIPTION

The engine control unit and transmission control unit are located inside the ECM. The engine control unit intercommunicates with the transmission control ECU via CAN communication.

If there is a problem in this intercommunication, the ECM stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
U010087 Lost Communication with ECM/PCM "A" Missing Message

All conditions are met for 1.25 seconds or more (1-trip detection logic):


  • The ignition switch is ON and battery voltage is 9.5 V or higher

  • There is no communication between the engine control unit and transmission control unit.

ECM Does not come on DTC stored

SAE Code:

U0100

CAUTION / NOTICE / HINT

Tech Tips

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Check that the battery voltage is 9.5 V or more.

  2. Turn the ignition switch to ON.

  3. Check for DTCs again.

    Click here

PROCEDURE


  1. CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC U010087)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Enter the following menus: Powertrain / Transmission / Trouble Codes.


      Powertrain > Transmission > Trouble Codes
    4. Check if DTCs are output.

      Result
      Result Proceed to
      Only DTC U010087 is output A
      DTC U010087 and other DTCs are output B

    B
    A
  2. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT