Component Inspection
■ Perform HO2S(S1) Heater
- Connect GDS to Data Link Connector (DLC).
- IG KEY "ON" & ENG "OFF".
- Perform "Actuation Test" for HO2S(S1) Heater.
■ Inspection HO2S(S1) Heater
- IG Key "OFF".
- Disconnect HO2S(S1) connector.
- Measure resistance between heater power and heater control terminal of the HO2S(S1) Heater. (Component Side)
Specification: Approx. 3.2Ω ± 0.8Ω at 20°C (68°F)
■ Confirm Part Inspection
- Does the HO2S(S1) Heater work properly? (Check variation)
YES
- Go to "Verification Of Vehicle Repair " procedure.
NO
- Substitute with a known-good HO2S(S1) and check for proper operation. If the problem is corrected, replace HO2S(S1) and then go to "Verification Of Vehicle Repair " procedure.