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 MANUALSHYUNDAI2011SANTA FE GLS, 3.5 G, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 23 (ENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 2) - G2.4 DOHC)DTC P0123: THROTTLE/PEDAL POSITION SENSOR/SWITCH 'A' CIRCUIT HIGH INPUTGENERAL INFORMATIONDTC DETECTING CONDITION

2011 Hyundai Santa Fe GLS, 3.5 G, AWD

General Information: DTC Detecting Condition

2011 Hyundai Santa Fe GLS, 3.5 G, AWDSECTION DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.

DTC DETECTING CONDITION

Item		Detecting Condition	Possible Cause
DTC Strategy		Short to Battery or Open circuit	Open in signal or ground circuit Short to battery in signal circuit Poor connection or damaged harness Faulty TPS 1
Case 1	Enable Conditions	Ignition "ON"
Case 1	Threshold Value	TPS > 4.9V
Case 1	Enable Conditions	Ignition "ON" In idle status Target throttle angle < 58% MAF Limphome detected or TPS2 failure detected
Case 1	Threshold Value	TPS1 > 3.0V
Diagnostic Time		0.05 sec.
Mil On Condition		1 Driving Cycles
Limp-Home		Forced limited power mode : When the DTC is set, the PCM reduces engine torque by 25% of normal value. The PCM uses TPS2 signal to monitor the controlled opening angle of the throttle valve.

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.