DTC Troubleshooting: P154A
DTC P154A: Battery Sensor Internal Failure
NOTE:
Before you troubleshoot, review the general troubleshooting information.
If the vehicle has an AGM type 12 volt battery, do the 12 volt battery test after this troubleshooting procedure to check the 12 volt battery performance.

DTC Description
Confirmed DTC
Pending DTC
P154A Battery Sensor Internal Failure
    

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS, and wait 10 seconds.


?3.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P154A Battery Sensor Internal Failure
    

Is DTC P154A indicated?

     
YES
     
     
     
The failure is duplicated. Replace the 12 volt battery sensor.?
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the 12 volt battery sensor and the gauge control module. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?