P2135 2017 GMC Sierra Code - Throttle Position Sensors 1-2 Not Plausible
Quick Answer
The P2135 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the throttle position sensors 1-2 not being plausible. Common causes include Faulty throttle position sensors, Wiring or connector issues in the throttle position sensor circuit, ECM software or hardware problems. 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
- P2135 2017 GMC Sierra indicates Throttle Position Sensors 1-2 Not Plausible.
- Common causes
- Common causes include Faulty throttle position sensors, Wiring or connector issues in the throttle position sensor circuit, ECM software or hardware problems.
- 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 P2135 2017 GMC Sierra Description
The P2135 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the throttle position sensors 1-2 not being plausible. This means that the Engine Control Module (ECM) has detected a discrepancy between the signals from the two throttle position sensors, which are responsible for monitoring the position of the throttle pedal. The throttle position sensors play a crucial role in the operation of the electronic throttle control system, which regulates the amount of air entering the engine and ultimately controls the vehicle's acceleration.
Common Causes of P2135 2017 GMC Sierra
- Faulty throttle position sensors
- Wiring or connector issues in the throttle position sensor circuit
- ECM software or hardware problems
- Throttle body malfunction or contamination
- Mechanical issues with the throttle pedal or linkage
Symptoms of P2135 2017 GMC Sierra
- Reduced engine power or acceleration
- Engine stalling or hesitation
- Illumination of the Check Engine Light
- Rough idling or uneven engine performance
- Difficulty maintaining a consistent speed
How to Fix P2135 2017 GMC Sierra
- Diagnose the issue by using a scan tool to retrieve the specific trouble codes and data related to the throttle position sensors.
- Inspect the throttle position sensors, wiring, and connectors for any signs of damage or corrosion. Replace any faulty components as needed.
- Clean the throttle body to ensure smooth operation and eliminate any potential contamination that could affect sensor readings.
- Perform a throttle body relearn procedure to recalibrate the sensors and ensure proper operation.
- Clear the trouble codes from the ECM and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P2135 2017 GMC Sierra
The typical repair costs for addressing a P2135 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. On average, the parts for replacing faulty throttle position sensors or wiring connectors can range from $100 to $300, while labor costs can add another $100 to $200. Additional costs may apply if other components need to be replaced or if further diagnosis is required. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the specific circumstances of the vehicle.
Need more information about the P2135 2017 GMC Sierra code?
Need more information on how to fix the P2135 2017 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2135 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2135 2017 GMC Sierra Code
1. What does the OBDII code P2135 for a 2017 GMC Sierra mean?
The P2135 code indicates that the throttle position sensors 1 and 2 are not plausible, meaning there is a discrepancy between the readings of these sensors.
2. What are the common symptoms associated with the P2135 code in a GMC Sierra?
Common symptoms include issues with acceleration, reduced engine power, rough idling, and potentially triggering the vehicle into a limp mode.
3. What are the possible causes of the P2135 code in a 2017 GMC Sierra?
Potential causes of the P2135 code include a faulty throttle position sensor, damaged wiring or connectors, a dirty throttle body, or issues with the electronic throttle control system.
4. How can I diagnose the P2135 code in my GMC Sierra?
To diagnose the P2135 code, you can use an OBDII scanner to read the code and then perform a visual inspection of the throttle position sensor, wiring, and connectors. You may also need to test the sensor's voltage and resistance.
5. Can I still drive my GMC Sierra with the P2135 code?
It is not recommended to drive your GMC Sierra with the P2135 code present, as it can lead to unsafe driving conditions due to potential issues with throttle response and engine power.
6. How can I repair the P2135 code in my 2017 GMC Sierra?
Depending on the exact cause of the P2135 code, you may need to replace the throttle position sensor, repair damaged wiring or connectors, clean the throttle body, or reset the electronic throttle control system.
7. Is it possible to reset the P2135 code in a GMC Sierra without repairing the issue?
While you can clear the code using an OBDII scanner, it is crucial to address the underlying problem causing the P2135 code to prevent it from reoccurring and potentially causing further damage.
8. Are there any preventative maintenance tips to avoid the P2135 code in a GMC Sierra?
Regularly inspecting and cleaning the throttle body, checking the throttle position sensor for any signs of wear, and ensuring proper wiring connections can help prevent issues that trigger the P2135 code.
9. Can a DIY enthusiast without extensive automotive experience fix the P2135 code in a GMC Sierra?
Depending on the root cause of the P2135 code, some repairs like cleaning the throttle body or checking wiring connections may be manageable for a DIY enthusiast. However, sensor replacements or complex electrical issues may require professional assistance.
10. How much can I expect to pay for repairing the P2135 code in a 2017 GMC Sierra?
The cost of repairing the P2135 code can vary significantly based on the exact cause of the issue and whether you choose to address it yourself or take it to a professional mechanic. Costs may range from a few dollars for cleaning supplies to a few hundred dollars for sensor replacements or complex repairs.
Discuss the causes and fixes for P2135 2017 GMC Sierra OBDII Code
Code P2135 2017 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.