Repair Procedures: Inspection
- Turn the ignition switch OFF.
- Disconnect the HO2S connector.
- Measure resistance between HO2S heater terminals 2 and 5. [B1/S1]
Measure resistance between HO2S heater terminals 3 and 4. [B1/S2]
- Check that the resistance is within the specification.
[Bank 1/Sensor 1]
Item Specification Heater Resistance (Ω) Approx. 2.5 [20°C (68°F)] [Bank 1/Sensor 2]
Item Specification Heater Resistance (Ω) Approx. 3.0 [20°C (68°F)]