Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 3. This step is testing for a rear HO2S sensor circuit condition. A circuit condition sets this DTC.
2. 6. This step inspects for the rear sensors being connected to the correct bank of the engine. This condition causes this DTC to set.
3. 7. This step is testing for an intermittent circuit condition. Thoroughly inspect the HO2S circuits for an intermittent circuit condition.
4. 8. This step is testing for an intermittent circuit condition. Thoroughly inspect the HO2S circuits for an intermittent circuit condition.