Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Lost Communication with Stop and Start Control Module Missing Message (U110387)

Toyota Corolla Cross (2022-2024) Service Manual / Drivetrain / K120f (cvt) / Continuously Variable Transaxle System / Lost Communication with Stop and Start Control Module Missing Message (U110387)

DESCRIPTION

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

If a communication error occurs between the TCM and engine stop and start ECU, the TCM 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

There is no communication between the TCM and engine stop and start ECU (1 trip detection logic).

  • CAN Communication System
  • TCM
  • Engine Stop and Start ECU

Does not come on

DTC stored

SAE Code:

-

CONFIRMATION DRIVING PATTERN

  1. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  2. Turn the ignition switch off and wait for at least 30 seconds.
  3. Turn the ignition switch to ON and turn the GTS on.
  4. Wait for 5 seconds or more with the ignition switch to ON.
  5. Enter the following menus: Powertrain / Transmission / Utility / All Readiness.
  6. Input the DTC: U110387.
  7. Check the DTC judgment result.

    GTS Display

    Description

    NORMAL

    • DTC judgment completed
    • System normal

    ABNORMAL

    • DTC judgment completed
    • System abnormal

    INCOMPLETE

    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    N/A

    • Unable to perform DTC judgment
    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.

CAUTION / NOTICE / HINT

NOTICE:

  • Perform registration and/or initialization when parts related to the continuously variable transaxle system are replaced.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

PROCEDURE

1.

CLEAR DTC AND PERFORM ROAD TEST

(a) Clear the DTCs.

Powertrain > Transmission > Clear DTCs

HINT:

Write down the currently output DTCs before clearing them.

(b) Start the engine and drive the vehicle at a low speed.

NEXT

2.

CHECK DTC OUTPUT (DTC U110387)

(a) Enter the following menus:

Powertrain > Transmission > Trouble Codes

(b) Read the DTCs using the GTS.

Result

Proceed to

DTC U110387 is not output

A

DTC U110387 is output

B

A

CHECK FOR INTERMITTENT PROBLEMS

Click here

Click here

B

GO TO CAN COMMUNICATION SYSTEM

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