P0073

Test 1 - 2:

Test 3 - 6:

SYMPTOM
P0073-AMBIENT TEMP SENSOR HIGH

WHEN MONITORED
The ignition key on.

SET CONDITION
The Ambient Temperature Sensor voltage is greater than 4.9 volts. One Trip Fault.

POSSIBLE CAUSES
- Ambient Air Temperature Sensor Voltage Above 4.9 Volts
- (K145) AAT Signal Circuit Shorted To Battery Voltage
- Ambient Air Temperature Sensor Internal Failure
- (K145) AAT Signal Circuit Open
- (K4) Sensor Ground Circuit Open
- PCM