Common Symptoms
- Check engine light illuminated
- Multiple sensor codes stored simultaneously
- Poor engine performance or rough idle
- Reduced fuel economy
- Intermittent stalling or no-start condition
- Erratic gauge readings on instrument cluster
Most Likely Root Causes
- Damaged or corroded wiring harness to sensors
- Failed PCM sensor reference voltage circuit
- Shorted sensor causing voltage circuit overload
- Corroded or loose ground connections
- Water intrusion in electrical connectors
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Component Location
The sensor reference voltage circuit originates from the PCM and distributes to multiple sensors throughout the engine compartment.
Manufacturer Notes
This code typically affects multiple sensors simultaneously since they share a common reference voltage circuit from the PCM.
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