P2122 2014 GMC Sierra Code - Accelerator Pedal Position Sensor 1 Circuit Low Voltage
Quick Answer
The P2122 code for a 2014 GMC Sierra indicates a problem with the Accelerator Pedal Position Sensor 1 circuit, specifically detecting low voltage. Common causes include Faulty Accelerator Pedal Position Sensor, Wiring or connector issues in the sensor circuit, Corrosion or damage to the sensor components. 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
- P2122 2014 GMC Sierra indicates Accelerator Pedal Position Sensor 1 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Accelerator Pedal Position Sensor, Wiring or connector issues in the sensor circuit, Corrosion or damage to the sensor components.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P2122 2014 GMC Sierra Description
The P2122 code for a 2014 GMC Sierra indicates a problem with the Accelerator Pedal Position Sensor 1 circuit, specifically detecting low voltage. This sensor is crucial for communicating the position of the accelerator pedal to the Engine Control Module (ECM), which in turn adjusts the fuel injection and ignition timing. A low voltage reading from the sensor can lead to inaccurate or delayed throttle response, affecting the vehicle's performance and fuel efficiency. If left unaddressed, this issue can potentially cause drivability problems, poor acceleration, and even stalling of the engine.
Common Causes of P2122 2014 GMC Sierra
- Faulty Accelerator Pedal Position Sensor
- Wiring or connector issues in the sensor circuit
- Corrosion or damage to the sensor components
- ECM software or hardware problems
- Electrical issues in the vehicle's wiring system
Symptoms of P2122 2014 GMC Sierra
- Delayed or unresponsive throttle response
- Engine hesitation or stumbling during acceleration
- Reduced fuel efficiency
- Illumination of the Check Engine Light
- Engine stalling or difficulty starting
How to Fix P2122 2014 GMC Sierra
- Diagnose the issue using a diagnostic scanner to confirm the P2122 code and pinpoint the exact cause.
- Inspect the accelerator pedal position sensor and its wiring for any visible damage or corrosion.
- Test the sensor's resistance and voltage output to determine if it is functioning within specifications.
- Replace the Accelerator Pedal Position Sensor if it is found to be faulty.
- Clear the code from the ECM's memory and perform a test drive to verify that the issue has been resolved.
Cost to Fix P2122 2014 GMC Sierra
The cost of repairing a P2122 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. Generally, the replacement cost for an Accelerator Pedal Position Sensor ranges from $50 to $200, while the labor cost at an auto repair shop can be between $100 and $200. Overall, the total repair cost can amount to approximately $150 to $400. It's recommended to consult with a trusted mechanic or dealership for a more accurate estimate, taking into account the local labor rates and any additional diagnostic charges that may apply.
Need more information about the P2122 2014 GMC Sierra code?
Need more information on how to fix the P2122 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2122 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2122 2014 GMC Sierra Code
What does code P2122 mean on a 2014 GMC Sierra?
P2122 indicates that the Accelerator Pedal Position Sensor 1 circuit is experiencing low voltage.
What are the symptoms of code P2122 in a 2014 GMC Sierra?
Common symptoms include reduced engine power, difficulty accelerating, a check engine light, and potentially entering "limp mode."
What causes code P2122 in a 2014 GMC Sierra?
Possible causes include a faulty accelerator pedal position sensor, damaged wiring or connectors, or issues with the vehicle’s PCM (Powertrain Control Module).
Can I drive my 2014 GMC Sierra with code P2122?
It’s not recommended to drive for extended periods, as reduced engine power and compromised acceleration could pose safety risks.
How do I fix code P2122 on a 2014 GMC Sierra?
Repairs may involve replacing the accelerator pedal position sensor, repairing damaged wiring, or addressing issues with the PCM.
How much does it cost to fix code P2122 on a 2014 GMC Sierra?
Fixing P2122 can cost between $100 and $400 depending on whether the sensor or wiring needs replacement. PCM repairs may cost more.
Can a dirty accelerator pedal sensor cause code P2122?
No, a dirty sensor is unlikely to cause the code. P2122 is typically due to electrical issues like low voltage or sensor failure.
Is code P2122 a common issue for the 2014 GMC Sierra?
While not extremely common, P2122 can occur due to wear and tear on the accelerator pedal position sensor or related components.
Will resetting the code P2122 solve the problem on my 2014 GMC Sierra?
A code reset may temporarily clear the check engine light, but the underlying issue must be addressed to prevent the code from returning.
How do I test the accelerator pedal position sensor on a 2014 GMC Sierra?
You can test the sensor using a multimeter to check for proper voltage output or use an OBDII scanner to monitor live data readings.
Discuss the causes and fixes for P2122 2014 GMC Sierra OBDII Code
Code P2122 2014 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.