P2128 2017 Chevrolet Silverado Code - Accelerator Pedal Position Sensor 2 Circuit High 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
- P2128 2017 Chevrolet Silverado indicates Accelerator Pedal Position Sensor 2 Circuit High 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 P2128 2017 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 2 voltage is greater than 2.6 V for less than 1 s.
What are the Possible Causes of the DTC P2128 2017 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 P2128 2017 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 P2128 2017 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.
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Frequently Asked Questions about P2128 2017 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P2128 in a 2017 Chevrolet Silverado?
- Common symptoms include the vehicle going into limp mode, reduced engine power, and the check engine light being illuminated.
2. What does the OBDII code P2128 on a 2017 Chevrolet Silverado indicate?
- This code indicates a high voltage condition in the circuit associated with the Accelerator Pedal Position Sensor 2.
3. What are the possible causes of OBDII code P2128 in a 2017 Chevrolet Silverado?
- Possible causes include a faulty accelerator pedal position sensor, issues with the sensor's wiring or connectors, or a problem with the engine control module.
4. How can I diagnose the OBDII code P2128 in my 2017 Chevrolet Silverado?
- Diagnosing this code typically involves using a scan tool to retrieve the code, inspecting the sensor's wiring and connectors, and testing the sensor's voltage output.
5. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P2128?
- It is not recommended to drive the vehicle with this code present, as it can lead to performance issues and potential safety concerns.
6. Is it possible to repair OBDII code P2128 in a 2017 Chevrolet Silverado myself?
- Depending on your skill level, you may be able to repair this issue yourself by replacing the faulty accelerator pedal position sensor or addressing wiring/connectivity issues.
7. How much does it typically cost to repair OBDII code P2128 in a 2017 Chevrolet Silverado?
- The cost of repairs can vary based on the specific issue causing the code, but it may involve replacing the accelerator pedal position sensor, which can range from $100 to $300.
8. Will resetting the OBDII code P2128 in my 2017 Chevrolet Silverado make it go away permanently?
- Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing the code is not addressed, it is likely to reappear.
9. Can a dirty throttle body cause OBDII code P2128 in a 2017 Chevrolet Silverado?
- While a dirty throttle body can potentially cause related performance issues, it is not a common direct cause of OBDII code P2128 specifically.
10. How long does it take to repair OBDII code P2128 in a 2017 Chevrolet Silverado?
- The repair time can vary depending on the exact cause of the code, but it typically takes a few hours to diagnose and replace the accelerator pedal position sensor or address wiring issues.
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