P2122 2015 Chevrolet Silverado 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 Chevrolet Silverado 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 Chevrolet Silverado 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 Chevrolet Silverado?
- 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 Chevrolet Silverado?
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 Chevrolet Silverado 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.
Need more information about the P2122 2015 Chevrolet Silverado code?
Need more information on how to fix the P2122 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2122 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2122 2015 Chevrolet Silverado Code
1. What does the OBDII code P2122 mean on a 2015 Chevrolet Silverado?
P2122 indicates a "Accelerator Pedal Position Sensor 1 Circuit Low Voltage," meaning the signal from the accelerator pedal sensor is below the expected range.
2. What are the common symptoms of code P2122 on a 2015 Chevrolet Silverado?
Symptoms may include reduced engine power, the “Check Engine†or “Service Stabilitrak†light turning on, unresponsive acceleration, or the vehicle entering limp mode.
3. What causes the P2122 code in a 2015 Chevrolet Silverado?
Common causes include a faulty accelerator pedal position (APP) sensor, damaged wiring or connectors in the APP circuit, or issues with the engine control module (ECM).
4. Can I drive my 2015 Chevrolet Silverado with a P2122 code?
It’s not recommended to drive with this code, as the truck may experience reduced power or become unsafe to operate due to limited throttle response.
5. How do I diagnose the P2122 code on a 2015 Chevrolet Silverado?
Start by checking the accelerator pedal position sensor and its wiring for damage, loose connections, or corrosion. Use a multimeter to verify voltage and signal readings from the sensor.
6. How do I fix the P2122 code on a 2015 Chevrolet Silverado?
Repairs may involve replacing the accelerator pedal position sensor, repairing or replacing damaged wiring, or reprogramming or replacing the ECM if it’s faulty.
7. How much does it cost to repair a P2122 code on a 2015 Chevrolet Silverado?
The cost to repair depends on the specific issue. Replacing an APP sensor typically costs $100–$300, while ECM repairs or replacements can run $500–$1,500.
8. Can a dirty throttle body cause a P2122 code on a 2015 Chevrolet Silverado?
While a dirty throttle body can cause acceleration issues, it’s unlikely to trigger a P2122 code directly, as the code specifically relates to the APP sensor’s low voltage.
9. Does the P2122 code mean I need to replace the accelerator pedal?
Not necessarily. While the APP sensor is located in the accelerator pedal assembly, the issue could also be with the wiring, connectors, or ECM and not the pedal itself.
10. Will clearing the P2122 code fix the problem on my 2015 Chevrolet Silverado?
Clearing the code may temporarily turn off the warning light, but the underlying issue must be fixed to prevent the code from returning.
Discuss the causes and fixes for P2122 2015 Chevrolet Silverado OBDII Code
Code P2122 2015 Chevrolet Silverado 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.
