P2122 2015 GMC Sierra Code - Accelerator Pedal Position Sensor 1 Circuit Low Voltage
Quick Answer
The Accelerator Pedal Assembly contains 2 Accelerator Pedal Position (APP) sensors. Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit poor electrical connection. 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 2015 GMC Sierra indicates Accelerator Pedal Position Sensor 1 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit poor electrical connection.
- 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.
Code P2122 2015 GMC Sierra Description
Both the APP sensors 1 and 2 signal percentages increase as the pedal is depressed, from approximately 0 percent at rest to above 95 percent when fully depressed.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the APP sensor 1 voltage is less than 0.46 V for less than 1 s.
What are the Possible Causes of the DTC P2122 2015 GMC Sierra?
- Faulty Accelerator Pedal Position Sensor
- Accelerator Pedal Position Sensor harness is open or shorted
- Accelerator Pedal Position Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2122 2015 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2122 2015 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2122 2015 GMC Sierra Code
1. What are the common symptoms of OBDII code P2122 in a 2015 GMC Sierra?
The common symptoms of OBDII code P2122 include a decrease in engine power, acceleration issues, and the illumination of the Check Engine Light on the dashboard.
2. What does the OBDII code P2122 indicate in a 2015 GMC Sierra?
OBDII code P2122 in a 2015 GMC Sierra indicates a problem with the Accelerator Pedal Position Sensor 1 Circuit, specifically reporting low voltage.
3. What are the possible causes of OBDII code P2122 in a 2015 GMC Sierra?
Possible causes of OBDII code P2122 in a 2015 GMC Sierra include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's electronic control module.
4. How can I diagnose the OBDII code P2122 in a 2015 GMC Sierra?
Diagnosing OBDII code P2122 involves using a scan tool to retrieve the trouble codes, testing the accelerator pedal position sensor and its circuit for proper voltage and continuity, and inspecting the related wiring and connectors for any damage.
5. Can I still drive my 2015 GMC Sierra with OBDII code P2122?
While it may be possible to drive the vehicle with OBDII code P2122, it is not recommended as it can lead to further damage and potential safety issues due to compromised acceleration and engine performance.
6. How can I repair OBDII code P2122 in a 2015 GMC Sierra?
Repairing OBDII code P2122 in a 2015 GMC Sierra typically involves replacing the accelerator pedal position sensor if it is found to be faulty, repairing or replacing damaged wiring or connectors, and clearing the trouble codes with a scan tool.
7. Is it safe to continue driving my 2015 GMC Sierra after repairing OBDII code P2122?
Once OBDII code P2122 has been properly repaired, it should be safe to drive the 2015 GMC Sierra. However, it is advisable to test drive the vehicle to ensure that the acceleration and engine performance are back to normal.
8. Can a DIY enthusiast fix OBDII code P2122 in a 2015 GMC Sierra?
While some DIY enthusiasts may have the skills to diagnose and repair OBDII code P2122, it is recommended to have a professional mechanic perform the repairs to ensure proper diagnosis and resolution of the issue.
9. How much does it cost to repair OBDII code P2122 in a 2015 GMC Sierra?
The cost of repairing OBDII code P2122 in a 2015 GMC Sierra can vary depending on the extent of the issue, the cost of parts needed for repair, and the labor rates of the mechanic or repair shop. It is advisable to get a few quotes from different mechanics to compare prices.
10. Can OBDII code P2122 in a 2015 GMC Sierra cause any long-term damage if left untreated?
If left untreated, OBDII code P2122 in a 2015 GMC Sierra can potentially cause further damage to the vehicle's engine and drivability. It is recommended to address the issue promptly to avoid any long-term consequences.
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