P0070

Test 1 - 4:

Test 5 - 7:

Test 8:

SYMPTOM
P0070-AMBIENT TEMP SENSOR STUCK

WHEN MONITORED
Engine Running.

SET CONDITION
After 4 warm-up cycles, the PCM did not see a -15 °C (4 °F) change in the Ambient Temperature Sensor voltage within 200 miles. Two Trip Fault

POSSIBLE CAUSES
- Good Trip Equal To Zero
- (K145) AAT Signal Circuit Shorted To Battery Voltage
- Ambient Air Temperature Sensor Voltage Below 0.1 Volt
- (K145) AAT Signal Circuit Open
- (K4) Sensor Ground Circuit Open
- (K145) AAT Signal Circuit Shorted To Ground
- (K145) AAT Signal Circuit Shorted To (K4) Sensor Ground
- PCM Low
- PCM High