Throttle Position Sensor/Switch G Circuit Low

Where it lives

For P212C, the circuit described runs through the sensor. The description of P212C reports a fault at the sensor.

Check these first

• A short to ground on the throttle position sensor G signal wire
• An open in the sensor G reference feed
• Corrosion at the sensor G connector
• A failed throttle position sensor

What to do next

1. Read throttle position sensor G on a scan tool
2. Test the sensor G signal wire for a short to ground
3. Check the sensor G reference feed for an open
4. Check the sensor G connector for corrosion
5. Replace the sensor G if the circuit tests good
6. Clear the code and retest

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