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 | No communication between the ECM and engine stop and start ECU assembly for 1.16 seconds or more (1-trip detection logic). | ·
ECM ·
Engine stop and start ECU ·
CAN communication system |
Does not come on | DTC stored | SAE Code:
U1103 |
After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for 3 minutes or more.
Turn the ignition switch to ON and turn the GTS on.
Wait for 2 seconds or more with the ignition switch 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 |
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.
Perform initialization when parts related to the continuously variable transaxle system are replaced.
Check that no DTCs are stored after performing initialization.
Clear the DTCs.
Write down the currently output DTCs before clearing them.
Start the engine and drive the vehicle at a low speed.
| Proceed to |
|---|
| NEXT |
NEXT
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Transmission / Trouble Codes.
Read the DTCs using the GTS.
| Result | Proceed to |
|---|---|
| DTC U110387 is not output | A |
| DTC U110387 is output | B |
A
B