DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message [11/2016 - ]: Description

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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 The ignition switch is ON and battery voltage is 10 V or more. No communication between ECM and engine stop and start ECU 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