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.
Signal Circuit Inspection
2009 Hyundai Tucson Limited, 2.0 BSECTION Signal Circuit Inspection
- Check for open in signal circuit.
- Ignition "OFF"
- Measure resistance between terminals 2 of the OTS harness connector and 52 of the PCM harness connector.
Specification : Approx. 0Ω
- Is resistance within specification?
YES
- Go to next step as below.
NO
- Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Check for short to battery in signal circuit.
- Disconnected PCM connector.
- Ignition "ON" & Engine "OFF".
- Measure voltage between terminals 2 of the OTS harness connector and 52 of the PCM harness connector.
Specification : Approx. 0V
- Is voltage within specification?
YES
- Go to "TERMINAL AND CONNECTOR INSPECTION " procedure.
NO
- Repair short to battery in harness and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
RENDER: 1.0x
NO RELATED
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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.