P100E 2017 GMC Sierra Code - Accelerator Pedal Position Signal Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. 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
- P100E 2017 GMC Sierra indicates Accelerator Pedal Position Signal Message Counter Incorrect.
- 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 P100E 2017 GMC Sierra Description
What are the Possible Causes of the DTC P100E 2017 GMC Sierra?
- Faulty Accelerator Pedal Position Sensor
- Accelerator Pedal Position Sensor harness is open or shorted
- Accelerator Pedal Position Sensor circuit poor electrical connection
How to Fix the DTC P100E 2017 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 P100E 2017 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 P100E 2017 GMC Sierra Code
1. What does the OBDII code P100E mean on a 2017 GMC Sierra?
P100E indicates that the accelerator pedal position (APP) signal message counter is incorrect, meaning the electronic throttle control system detected mismatched or invalid data from the APP sensor.
2. What are the common symptoms of code P100E in a 2017 GMC Sierra?
Symptoms may include reduced engine power, illumination of the check engine light, poor throttle response, or the vehicle entering "limp mode."
3. What causes the P100E code in a 2017 GMC Sierra?
Common causes include a faulty APP sensor, damaged wiring or connectors in the accelerator pedal circuit, or issues with the powertrain control module (PCM).
4. Can I drive my 2017 GMC Sierra with the P100E code?
Driving with code P100E is not recommended, as it can lead to reduced performance and safety risks due to limited throttle response and potential loss of power.
5. How do I fix the P100E code on a 2017 GMC Sierra?
Repair solutions include inspecting and repairing damaged wiring or connectors, replacing the accelerator pedal assembly (if the APP sensor is faulty), or updating/reprogramming the PCM if needed.
6. How do I diagnose the P100E code on a 2017 GMC Sierra?
Diagnosis involves scanning for additional codes, inspecting the APP sensor and its wiring, checking for proper voltage and ground at the sensor, and using a scan tool to monitor APP signal data.
7. Is the P100E code related to the throttle body on a 2017 GMC Sierra?
While P100E specifically refers to the APP sensor, issues with the throttle body or its wiring can sometimes cause similar symptoms and should be inspected if other components check out.
8. What tools are needed to fix the P100E code on a 2017 GMC Sierra?
You’ll need an OBDII scanner, a multimeter to check electrical connections, and basic hand tools for component inspection and replacement.
9. How much does it cost to repair the P100E code on a 2017 GMC Sierra?
The cost varies depending on the issue. Replacing an APP sensor or pedal assembly typically costs $150–$300, while PCM reprogramming or wiring repairs may add to the cost.
10. Can a software update fix the P100E code on a 2017 GMC Sierra?
Yes, in some cases, a PCM software update may resolve the issue if the code is caused by outdated or corrupted programming.
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