Component Inspection

Measure resistance between terminals 5 and 6 of the sensor connector (Component side).

Specification

RESISTANCE SPECIFICATION

Temp. (°C)	Temp. (°F)	Front HO2S Heater Resistance (Ω)	Temp. (°C)	Temp. (°F)	Front HO2S Heater Resistance (Ω)
20	68	2.4	400	752	5.3
100	212	3.3	500	932	5.8
200	392	4	600	1,112	6.4
300	572	4.6	700	1,292	6.9

Fig 1: Measuring Resistance Between Terminals 5 And 6 Of Sensor Connector

Courtesy of KIA MOTORS AMERICA, INC.

Is HO2S heater resistance display near the specified value?
YES
- Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Check HO2S for contamination, deterioration, or damage. Substitute with a known-good HO2S and check for proper operation. If the problem is corrected, replace HO2S and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.