System Inspection
- Refer to appropriate service information and visually and/or physically inspect following conditions;
- Proper installation of O2 Sensors.
- Check for corrosion on terminals.
- Check for damaged wiring.
- Fuel, Engine coolant or oil contamination.
- Check for good ground for O2 sensor.
- Has a problem been found?
YES
- Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Go to "WIRING INSPECTION " procedure.