Operation CHARM: Car repair manuals for everyone.

P1492

Test 1 - 2:




Test 3 - 6:






SYMPTOM
P1492-AMBIENT/BATTERY TEMPERATURE SENSOR VOLTAGE TOO HIGH

WHEN MONITORED
With the ignition key on.

SET CONDITION
The PCM senses the voltage from the Battery Temperature Sensor above 4.9 volts for 3 seconds.

POSSIBLE CAUSES
- Battery temp sensor voltage above 4.8 volts
- Battery temperature sensor
- (K118) batt temp signal circuit shorted to voltage
- (K118) batt temp signal circuit open
- (K4) sensor ground circuit open
- PCM