P0073

Test 1 - Test 2:

Test 3 - Test 6:

SYMPTOM
P0073-AMBIENT TEMP SENSOR HIGH

WHEN MONITORED
The ignition key on.

SET CONDITION
The Ambient Temperature Sensor voltage is greater than 4.94 volts. One Trip Fault.

POSSIBLE CAUSES
- Ambient air temperature sensor voltage above 4.8 volts
- (K25) AAT signal circuit shorted to battery voltage
- Ambient air temperature sensor internal failure
- (K25) AAT signal circuit open
- (K4) Sensor ground circuit open
- PCM