Connect GDS to Data Link Connector(DLC).
IG KEY "ON" & ENG "OFF".
Perform "Actuation Test" for HO2S(S2) Heater.
IG Key "OFF".
Disconnect HO2S(S2) connector.
Measure resistance between heater power and heater control terminal of the HO2S(S2) Heater. (Component Side)
Specification : Approx. 9.0Ω(20°C) (68℉)
Does the HO2S(S2) Heater work properly? (Check variation)
![]() | ▶ Go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Substitute with a known-good HO2S(S2) and check for proper operation. If the problem is corrected, replace HO2S(S2) and then go to "Verification of Vehicle Repair" procedure. |