Diesel Data: Automotive Repair

P0A1F / INF123

DTC P0A1F/123 BATTERY ENERGY CONTROL MODULE

CIRCUIT DESCRIPTION


DTC Detection Condition:




Based on a malfunction signal received from the battery ECU, the HV control ECU alerts the driver and effects fail-safe control.

MONITOR DESCRIPTION

Monitor Strategy:




Typical Enabling Conditions:




Typical Malfunction Thresholds:




Component Operating Range:




Upon receiving an abnormal signal input from the battery ECU, the HV control ECU illuminates the MIL and sets a DTC.




INSPECTION PROCEDURE

HINT
: After repairing the malfunction, restart the system (to turn the READY lamp ON) and recheck the DTC.