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2002 BUICK CENTURY

3.1L V6•FWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor564Torque2394Fluid6DTC745Battery0Maintenance0Recalls2
P0123critical severityPowertrain

Throttle/Pedal Position Sensor/Switch A Circuit High Input

on 2002 Buick Century 3.1L V6 · FWD

What this code means

The TPS voltage is above the maximum threshold.

Symptoms

  • Check Engine Light
  • Limp mode
  • High idle
  • Sudden acceleration concern

Common causes

  • Open circuit in TPS ground
  • Short to voltage
  • Faulty TPS

Diagnostic steps

  1. Test TPS voltage
  2. Check for open ground
  3. Check for shorts to power

Repair notes

Repair wiring or replace TPS. Safety concern - do not drive.

Other Powertrain codes on this vehicle

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