AUTOMATIC TRANSMISSION SYSTEM(for 8AR-FTS), Diagnostic DTC:U110387

DTC Code DTC Name
U110387 Lost Communication with Stop and Start Control Module Missing Message

DESCRIPTION

The ECM and engine stop and start ECU send and receive signals via CAN communication.

If a communication error occurs between the ECM and engine stop and start ECU, the ECM stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
U110387 Lost Communication with Stop and Start Control Module Missing Message

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other


  1. The engine switch is on (IG) and battery voltage is 10 V or more.

  2. No communication between ECM and engine stop and start ECU

  3. 1.16 seconds or more

  4. 1-trip detection logic

  • ECM

  • Engine stop and start ECU

  • CAN communication system

 Does not come on DTC stored

SAE Code:

U1103

CAUTION / NOTICE / HINT

Note

Perform registration and/or initialization when parts related to the automatic transmission are replaced.

Click here

Tech Tips

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


  1. Check the battery voltage is 10 V or more.

  2. Turn the engine switch on (IG).

  3. Check for DTCs again.

    Click here

PROCEDURE


  1. CLEAR DTC AND PERFORM ROAD TEST


    1. Clear the DTCs.

      Click here


      Powertrain > Transmission > Clear DTCs

      Tech Tips

      Write down the currently output DTCs before clearing them.

    2. Start the engine and drive the vehicle at a low speed.

      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK DTC OUTPUT (DTC U110387)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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


      Powertrain > Transmission > Trouble Codes

    5. Read the DTCs using the GTS.

      Result
      Result Proceed to
      DTC U110387 is not output A
      DTC U110387 is output B

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here