Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSHYUNDAI2011SANTA FE GLS, 3.5 G, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 23 (ENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 2) - G2.4 DOHC)DTC P0135: O2 SENSOR HEATER CIRCUIT (BANK 1/SENSOR 1)INSPECTION/REPAIRCOMPONENT INSPECTION
2011 Hyundai Santa Fe GLS, 3.5 G, AWD
Component Inspection
2011 Hyundai Santa Fe GLS, 3.5 G, AWDSECTION Component Inspection
WARNING: This page is about a different variant/trim than selected.
- Ignition "OFF".
- Disconnect HO2S connector.
- Measure resistance between Heater Control terminal and Heater Power terminal of the HO2S connector. (Component side)
Specification
HO2S HEATER SPECIFICATIONSHO2S Heater Normal Parameter 18 ~ 20°C Heater Resistance 2.4 ~ 2.9Ω - 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.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.