P1492

Tests 1 - 3:

Tests 4 - 7:

SYMPTOM
P1492 - AMBIENT/BATTERY TEMPERATURE SENSOR VOLTS TOO HIGH

WHEN MONITORED
With the ignition ON.

SET CONDITION
The PCM senses the voltage from the BTS to be above 4.9 volts for 3 seconds.

POSSIBLE CAUSES
- Battery temperature sensor
- Wiring harness intermittent problem
- Battery temperature sensor signal circuit shorted to battery voltage
- Battery temperature sensor signal circuit open
- Sensor ground circuit open
- PCM