Check HO2S (B1/S2) Heater Resistance
WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
| Check Item | Specifications | Check Condition | Terminal (+) | Terminal (-) |
|---|---|---|---|---|
| Resistance at Temp. 18~20° (64~82°F) | Approx. 2~3V | Ignition switch is turned "OFF" | Power terminal of Sensor Heater | Control terminal of Sensor Heater |
- Is the measured resistance within specification?
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