Faulty Powertrain Control Module (PCM)
Powertrain Control Module harness is open or shorted
Powertrain Control Module circuit poor electrical connection
Faulty Battery Condition Monitor (BCM) Module)
Faulty Motor Control Module (MCM)
Engine Light ON (or Service Engine Soon Warning Light)
The Integrated Motor Assist (IMA) – Controller Area Network (CAN) uses two signal lines, IMACANH and IMACANL, and it receives and transmits multiple signals simultaneously to/from multiple control modules.
When the information is not sent from the Powertrain Control Module (PCM) through the IMA-CAN and this condition continues for a specified time or when the information sent from the PCM is abnormal and this condition continues for a specified cycle, the Battery Condition Monitor (BCM) module detects a malfunction and when BUS-OFF is not detected after the time to detect BUS-OFF has passed, a DTC is stored.