P0071

Test 1 - 2:

Test 3 - 6:

Test 7 - 8:

SYMPTOM
P0071-AMBIENT/BATTERY TEMP SENSOR PERFORMANCE

WHEN MONITORED
With the ignition on and no Battery Temperature Sensor Open or Short Faults present.

SET CONDITION
After 5 warm cycles have occurred (coolant increases at least 22 °C (40 °F) to a minimum of 71 °C (160 °F) and the odometer mileage has increased 196.6 miles and the Battery Temperature has changed less than 4 °C (7.2 °F) change in temperature. One trip fault.

POSSIBLE CAUSES
- Good trip equal to zero
- (K118) battery temp signal circuit shorted to voltage
- Battery temperature sensor
- Resistance in the (K118) battery temp sensor signal circuit
- Resistance in the (K4) sensor ground circuit
- (K118) Battery temp sensor signal circuit shorted to ground
- PCM