P212C Code - Throttle Position Sensor/Switch 'G' Circuit Low
Quick Answer
The P212C diagnostic trouble code (DTC) refers to an issue with the Throttle Position Sensor/Switch 'G' Circuit being detected as low. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the 'G' circuit, ECM malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P212C indicates Throttle Position Sensor/Switch 'G' Circuit Low.
- Common causes
- Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the 'G' circuit, ECM malfunction.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P212C Description
The P212C diagnostic trouble code (DTC) refers to an issue with the Throttle Position Sensor/Switch 'G' Circuit being detected as low. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic throttle control system, responsible for monitoring the position of the throttle pedal and sending signals to the engine control module (ECM) to adjust the throttle opening accordingly. The 'G' circuit specifically indicates a particular area of the TPS system that is experiencing low voltage or resistance, which can lead to various performance issues.
Common Causes of P212C
- Faulty throttle position sensor
- Damaged wiring or connectors in the 'G' circuit
- ECM malfunction
- Contamination of TPS from dirt or debris
- Normal wear and tear on TPS components
Symptoms of P212C
- Engine hesitation or surging during acceleration
- Rough idling or stalling
- Reduced fuel efficiency
- Check Engine Light illuminated
- Loss of power or response from the throttle pedal
How to Fix P212C
- Begin by diagnosing the specific cause of the issue using a scan tool to read the DTC and perform voltage tests on the TPS.
- Inspect the wiring and connectors in the 'G' circuit for any signs of damage or corrosion, repairing or replacing as necessary.
- Replace the throttle position sensor if it is found to be faulty, ensuring proper installation and calibration.
- Clear the DTC from the ECM's memory and perform a test drive to verify that the issue has been resolved.
- If the problem persists, further diagnostics may be required to identify any underlying ECM issues or other potential causes.
Cost to Fix P212C
The typical repair costs for addressing a Throttle Position Sensor/Switch 'G' Circuit Low issue can vary depending on the specific cause of the problem and the vehicle's make and model. In general, replacing a faulty throttle position sensor can cost between $100 and $300, including parts and labor. However, if wiring repairs or ECM replacement are needed, the total cost could range from $200 to $600 or more. It's important to note that diagnosis time and labor rates at auto repair shops can fluctuate, so it's advisable to check with local providers for a more accurate estimate. Rates typically range from $80 to $150 per hour, with variations based on location and shop type.
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