P0158

Test 1 - 4:

Test 5 - 6:

SYMPTOM
P0158-2/2 O2 SENSOR SHORTED TO VOLTAGE

TEST NOTE
This symptom is diagnosed using the test P0132-1/1 O2 SENSOR SHORTED TO VOLTAGE.

WHEN MONITORED
Battery voltage greater than 10 volts. Engine running for greater than 2 minutes. Coolant temperature above 80° C (176° F).

SET CONDITION
The Oxygen Sensor voltage is above 1.21 volts.

POSSIBLE CAUSES
- O2 sensor below 1.2 volts
- O2 sensor operation
- O2 sensor signal shorted to voltage
- O2 sensor signal open
- O2 sensor ground circuit open
- PCM