P1120high severityPowertrain
Accelerator Pedal Position Sensor Circuit
on 2021 Toyota Camry 2.5L I4 · FWD
What this code means
The ECM detected a malfunction in the APP sensor circuit that communicates throttle demand.
Symptoms
- CEL
- Reduced power
- Erratic throttle
- Engine may not rev
Common causes
- Faulty APP sensor
- Damaged wiring
- Corroded connector
- Faulty ECM
Diagnostic steps
- Test APP sensor voltage
- Inspect connector
- Check wiring continuity
- Test with scan tool
Repair notes
Replace APP sensor or repair wiring.
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