Lost Communication With ECM/PCM "A"

DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"

CIRCUIT DESCRIPTION

DTC Detection Condition:

The battery ECU receives signals from the HV control ECU, ECM, and gateway ECU via CAN (Controller Area Network) communication.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Component Operating Range:

If the battery ECU detects malfunction in the CAN communication with the ECM or HV control ECU, it illuminates the MIL and sets a DTC.

Step 1:

INSPECTION PROCEDURE