P1492

Tests 1 - 2:

Tests 3 - 7:

Tests 8 - 9:

SYMPTOM
P1492 - AMBIENT/BATT TEMPERATURE SENSOR VOLTS TOO HIGH

WHEN MONITORED
With the ignition key ON.

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

POSSIBLE CAUSES
- BTS sensor ground open
- PCM defective (BTS resistance low)
- BTS connector and harness intermittent defect
- BTS connector and harness observable defect
- BTS
- BTS signal circuit open
- BTS signal circuit shorted to voltage