P0223critical severityPowertrain
Throttle/Pedal Position Sensor/Switch B Circuit High
on 2004 Cadillac DeVille 4.6L V8 Northstar · FWD
What this code means
High voltage from TPS B.
Symptoms
- Check Engine Light
- Limp mode
- Unintended acceleration risk
Common causes
- Open circuit
- Short to power
- Faulty sensor
Diagnostic steps
- Test TPS B voltage
- Check for opens/shorts
Repair notes
Repair or replace. Safety concern.
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