71 Battery Temp. Sensor Volts Out of Limit

NAME OF CODE:
Battery Temp. Sensor Volts Out of Limit

WHEN MONITORED:
With the ignition key ON.

SET CONDITION:
There is a circuit problem in the sensor circuit internal to the Powertrain Control Module (PCM).

THEORY OF OPERATION:
The battery temp sensor voltage is used to determine what goal voltage to use for the charging system based on ambient temperature near the battery.

POSSIBLE CAUSES:
- PCM failure