Advanced Diagnostics

Advanced Diagnostics - DTC P0AC0 (65): Battery Current Sensor Circuit Malfunction






General Description
The A/D (analog/digital conversion) exchange is done by passing directing the battery condition monitor (BCM) module input voltage from the battery current sensor during a no electricity condition of the battery module immediately after the ignition switch is turned to ON (II). (max. 140 milliseconds.) When the difference between the maximum value and the minimum value of eight continuous inputs is within 117 mV, the average value of eight battery current sensor inputs is calculated. When the battery current sensor average value exceeds the set value, a malfunction is detected and a DTC is stored.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status






Enable Conditions






Malfunction Threshold
The average value of the battery current sensor input exceeds the range of -5 A to 5 A.

Diagnosis Details

Conditions for setting the DTC
When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM and the BCM module memory.

Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the battery.