Toyota Corolla Cross: 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
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for at least 30 seconds.
- Turn the ignition switch to ON and turn the GTS on.
- Wait for 5 seconds or more with the ignition switch to ON.
- Enter the following menus: Powertrain / Transmission / Utility / All Readiness.
- Input the DTC: U110387.
- 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
|
READ NEXT:
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DESCRIPTION
When the ignition switch is turned to ON, auxiliary battery voltage is applied
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SEE MORE:
DESCRIPTION
This procedure is for when the stop and start system does not operate.
Regarding explanations of the features of stop and start system control:
Click here
PROCEDURE
1. STOP AND START SYSTEM OPERATION CHECK
(a) Check if the stop and start system operates. Cli
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