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Component Inspection

Check resistance.

IG "OFF".
Disconnect HO2S (S2) connector.

Measure resistance between terminal 3 and 4 of HO2S (S2) (Component Side)

RESISTANCE SPECIFICATION

ITEM	Specification
Heater Resistance (Ω)	Approx. 9.0Ω at 20°C (68°F)

Fig 1: Measuring Resistance Between Terminal 3 And 4 Of HO2S (S2)

G04862064

Courtesy of KIA MOTORS AMERICA, INC.

Is the measured resistance within specification?
YES
- Substitute with a known-good ECM/PCM and check for proper operation.
- If the problem is corrected, replace ECM/PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NOTE: There is a memory reset function on scan tool that can erase optional parts automatically detected and memorized by ECM/PCM.
Before or after testing ECM/PCM on the vehicle, use this function to reuse the ECM/PCM

NO
- Substitute with a known-good HO2S (S2) and check for proper operation.
- If the problem is corrected, replace HO2S (S2) and go to "VERIFICATION OF VEHICLE REPAIR " procedure.