P0158

Tests 1 - 5:

Tests 6 - 8:

SYMPTOM
P0158-2/2 O2 SENSOR SHORTED TO VOLTAGE

TEST NOTE
All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0132-1/1 O2 SENSOR SHORTED TO VOLTAGE.

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

SET CONDITION
The Oxygen Sensor voltage is above 1.21 volts.

POSSIBLE CAUSES
- Intermittent condition
- O2 sensor operation
- O2 sensor signal shorted to voltage
- O2 Sensor signal circuit shorted to ASD output circuit
- O2 Sensor signal open
- O2 Sensor ground circuit open
- PCM