P0223critical severityPowertrain
Throttle/Pedal Position Sensor/Switch B Circuit High
on 2010 Lexus GS 430 4.3L V8 · RWD
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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P0002
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P0004
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P0010
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P0011
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P0014
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P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1