DTC P0121: Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance: DTC Detecting Condition

2005 Hyundai Santa Fe GLS, 2.7 D, AWDSECTION DTC Detecting Condition
DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • Compare calculated MAF with MAF signal
  • Contact resistance in connections.
  • Faulty TP Sensor (TPS)
Enable Conditions
  • 1500 > Engine speed (RPM) > 3500
  • 450 > Measured mass air flow (mg/rev.) > 1050
  • Coolant temp. < 60Β°C (140Β°F)
Threshold Value
  • Measured MAF/Calculated MAF > 0.5 or < 1.3
Diagnostic Time
  • 120 sec.
MIL On Condition
  • -
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
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  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.