P1272 GMC Code - Accelerator Pedal Position Sensor 2-3 Correlation
Quick Answer
The P1272 GMC diagnostic trouble code (DTC) refers to an issue with the Accelerator Pedal Position Sensor 2-3 Correlation. Common causes include Faulty accelerator pedal position sensor 2 or sensor 3, Wiring issues or poor connections in the sensor circuit, ECM malfunction or software glitches. 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
- P1272 GMC indicates Accelerator Pedal Position Sensor 2-3 Correlation.
- Common causes
- Common causes include Faulty accelerator pedal position sensor 2 or sensor 3, Wiring issues or poor connections in the sensor circuit, ECM malfunction or software glitches.
- 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 P1272 GMC Description
The P1272 GMC diagnostic trouble code (DTC) refers to an issue with the Accelerator Pedal Position Sensor 2-3 Correlation. This means that there is a discrepancy between the signals received from the accelerator pedal position sensor 2 and sensor 3, which are used by the Engine Control Module (ECM) to determine the desired throttle position.
Common Causes of P1272 GMC
- Faulty accelerator pedal position sensor 2 or sensor 3
- Wiring issues or poor connections in the sensor circuit
- ECM malfunction or software glitches
- Environmental factors such as moisture or corrosion affecting sensor operation
- Mechanical issues with the accelerator pedal or throttle body
Symptoms of P1272 GMC
- Lack of throttle response or delayed acceleration
- Rough idling or stalling
- Engine going into limp mode
- Reduced fuel efficiency
- Increased emissions
How to Fix P1272 GMC
- Begin by diagnosing the specific cause of the issue using a scan tool to check for any stored trouble codes and performing a thorough inspection of the accelerator pedal position sensors and associated wiring.
- If a faulty sensor is identified, replace the affected sensor with a new OEM or high-quality aftermarket part.
- Check and repair any damaged wiring or connections in the sensor circuit to ensure proper signal transmission.
- If the issue persists, consider reprogramming or replacing the ECM to address any software glitches or malfunctions.
- After completing the repairs, clear the DTC and test drive the vehicle to ensure that the issue has been resolved and that the throttle response is back to normal.
Cost to Fix P1272 GMC
The typical repair costs for addressing a P1272 GMC code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the cost of parts for replacing a faulty accelerator pedal position sensor can range from $50 to $200, while the labor cost can range from $100 to $300. Additional costs may apply if wiring repairs or ECM reprogramming are necessary. It is advisable to check with local auto repair shops for a more accurate estimate based on the make and model of the vehicle.
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