Engine-CodesGMC – P1282 GMC

P1282 GMC Code - Accelerator Pedal Position Sensor 2 Circuit Low Voltage

Quick Answer

The P1282 diagnostic trouble code (DTC) for GMC vehicles indicates an issue with the Accelerator Pedal Position Sensor 2 Circuit registering a low voltage. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor 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
P1282 GMC indicates Accelerator Pedal Position Sensor 2 Circuit Low Voltage.
Common causes
Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor 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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1282 GMC Description

The P1282 diagnostic trouble code (DTC) for GMC vehicles indicates an issue with the Accelerator Pedal Position Sensor 2 Circuit registering a low voltage. This sensor is crucial for the proper operation of the electronic throttle control system in modern vehicles. The accelerator pedal position sensor is responsible for sending information to the engine control module (ECM) about the position of the accelerator pedal. The ECM uses this data to adjust the throttle opening, fuel delivery, and ignition timing to ensure the engine operates efficiently and responds accurately to driver input.

OBDII Code P1282 GMC - Accelerator Pedal Position Sensor 2 Circuit Low Voltage
P1282 GMC Code - Accelerator Pedal Position Sensor 2 Circuit Low Voltage

Common Causes of P1282 GMC

  1. Faulty accelerator pedal position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. ECM malfunction
  4. Corrosion or moisture in the sensor connectors
  5. Electrical issues within the throttle control system

Symptoms of P1282 GMC

  1. Lack of power or poor acceleration
  2. Rough idling or engine hesitation
  3. Vehicle going into limp mode
  4. Engine stalling
  5. Check Engine Light illuminated on the dashboard

How to Fix P1282 GMC

  1. Begin by performing a thorough inspection of the accelerator pedal position sensor, wiring, and connectors to check for any visible damage or corrosion.
  2. Use a multimeter to test the voltage output of the sensor and compare it to the manufacturer's specifications to determine if it is operating within the correct range.
  3. If the sensor is faulty, replace it with a new OEM or aftermarket sensor and ensure it is properly calibrated.
  4. Clear the diagnostic trouble codes from the ECM using a scan tool and test drive the vehicle to verify that the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be necessary to identify any underlying issues with the throttle control system.

Cost to Fix P1282 GMC

The cost of repairing a P1282 code for the Accelerator Pedal Position Sensor 2 Circuit Low Voltage can vary depending on the specific cause of the issue and the labor rates at auto repair shops. In general, replacing the accelerator pedal position sensor itself can range from $100 to $200, while addressing wiring or connector problems may incur additional costs. Labor rates at auto repair shops typically range from $80 to $150 per hour, so the total repair cost could amount to a few hundred dollars. It's advisable to consult with a trusted mechanic or dealership for a more accurate estimate based on your vehicle's make and model.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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