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.
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HOMESERVICE MANUALSHYUNDAI2013GENESIS COUPE 2.0T PREMIUMREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 39 (ENGINE CONTROL SYSTEM (DTC TROUBLESHOOTING) (1 OF 4) - 3.8L)DTC P0123: THROTTLE POSITION SENSOR 1 SIGNAL CIRCUIT HIGH INPUTGROUND CIRCUIT INSPECTION
2013 Hyundai Genesis Coupe 2.0T Premium
Ground Circuit Inspection
2013 Hyundai Genesis Coupe 2.0T PremiumSECTION Ground Circuit Inspection
WARNING: This page is about a different car, the 2012 Hyundai Genesis Coupe. However, it is still accessible from the selected car via links, so may be relevant.
- Check open in harness
- Ignition "OFF" and disconnect ECTS connector and then Ignition "ON".
- Measure voltage between TPS power terminal of ETC Motor and TPS harness connector and chassis ground. (Measurement "A")
- Measure voltage between TPS power and TPS ground terminals of ETC Motor and TPS harness connector. (Measurement "B")
Specification: Voltage difference between measurement "A" and "B" is below 200mV.
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.