Battery Temperature Sensor: Description and Operation

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

WHEN MONITORED:
With the ignition key ON.

SET CONDITION:
The PCM senses the voltage from the Battery Temperature Sensor (BTS) to be either below 0.5 volts or above 4.9 volts for 3 seconds.

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

The battery tem sensor is an internal PCM component.

POSSIBLE CAUSES:
- PCM failure