DTC Advanced Diagnostics: P154A
DTC P154A:Battery Sensor Internal Failure

General Description

The 12 volt battery sensor is the central component of the electronic energy management. The 12 volt battery sensor records battery quantities as current, voltage, and temperature. With the measured values, the integrated software monitors current and anticipate battery states. If the PCM detects a 12 volt battery sensor hardware failure for a specified time, a DTC is stored.

Monitor Execution, Sequence, Duration, DTC Type
Execution
Continuous
Sequence
None
Duration
10 seconds or more
DTC Type
One drive cycle, MIL off

Enable Conditions
Condition
 
Vehicle
ON mode
Other
LIN communication is established for at least 3 seconds

Malfunction Threshold
The PCM detects a 12 volt battery sensor hardware failure for at least 10 seconds.

Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
12 volt battery sensor failure

Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC
The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.