What this code means

General malfunction in the throttle position sensor (TPS) or accelerator pedal position sensor circuit.

Symptoms

• Check Engine Light
• Erratic idle
• Poor throttle response
• Limp mode
• Stalling

Common causes

• Faulty TPS
• Wiring damage
• Throttle body issue
• PCM failure

Diagnostic steps

1. Test TPS voltage sweep (smooth transition 0.5-4.5V)
2. Inspect wiring
3. Check throttle body
4. Test reference voltage

Repair notes

Replace TPS or throttle body assembly. Some vehicles require TPS relearn procedure.

Other Powertrain codes on this vehicle