P20E9 2014 GMC Sierra Code - Reductant High Pressure
Quick Answer
The pressure sensor information is used by Reductant Control Module; this module manages the reductant pressure system driving the PWM signal to the pump (corresponding to a speed setpoint for the reductant pressure pump) in order to build the pressure in the reductant pressure pipeline after the system start-up. Common causes include Faulty Reductant Injector, Reductant Injector harness is open or shorted, Reductant Injector 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
- P20E9 2014 GMC Sierra indicates Reductant High Pressure.
- Common causes
- Common causes include Faulty Reductant Injector, Reductant Injector harness is open or shorted, Reductant Injector 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 P20E9 2014 GMC Sierra Description
What are the Possible Causes of the DTC P20E9 2014 GMC Sierra?
- Faulty Reductant Injector
- Reductant Injector harness is open or shorted
- Reductant Injector circuit poor electrical connection
- Faulty Reductant Pump and Sensor Assembly
How to Fix the DTC P20E9 2014 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 P20E9 2014 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.
Need more information about the P20E9 2014 GMC Sierra code?
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Frequently Asked Questions about P20E9 2014 GMC Sierra Code
1. What does OBDII code P20E9 in a 2014 GMC Sierra indicate?
The P20E9 code in a 2014 GMC Sierra refers to a "Reductant High Pressure" issue related to the vehicle's Selective Catalyst Reduction (SCR) system.
2. What are common symptoms of the P20E9 code in a GMC Sierra?
Common symptoms of the P20E9 code may include the illumination of the Check Engine Light, reduced engine performance, and potential difficulty starting the vehicle.
3. What are possible causes of the P20E9 code in a 2014 GMC Sierra?
Potential causes of the P20E9 code in a GMC Sierra include a malfunctioning reductant pressure sensor, issues with the reductant pump, clogged filters, or a faulty SCR system.
4. How can I diagnose the P20E9 code in my 2014 GMC Sierra?
Diagnosing the P20E9 code typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the reductant system components for any visible damage or leaks, and testing the reductant pressure sensor for proper functionality.
5. Can I continue driving my 2014 GMC Sierra with the P20E9 code present?
It is not recommended to continue driving your GMC Sierra with the P20E9 code illuminated, as it may lead to reduced fuel efficiency, increased emissions, and potential damage to the vehicle's emissions control system.
6. How can I repair the P20E9 code in my GMC Sierra?
Repairing the P20E9 code may involve replacing the reductant pressure sensor, repairing or replacing the reductant pump, clearing any clogs in the system, or addressing any other underlying issues affecting the SCR system.
7. Will resetting the OBDII code P20E9 in my GMC Sierra make it go away permanently?
Simply clearing the P20E9 code without addressing the underlying issue will not make it go away permanently. It is crucial to diagnose and repair the root cause of the problem to prevent the code from reappearing.
8. Can a DIY enthusiast fix the P20E9 code in a 2014 GMC Sierra?
While some aspects of diagnosing and repairing the P20E9 code may be tackled by experienced DIY enthusiasts, it is recommended to consult with a professional mechanic or dealership for a thorough diagnosis and proper repair.
9. How much does it typically cost to fix the P20E9 code in a GMC Sierra?
The cost of repairing the P20E9 code in a GMC Sierra can vary depending on the specific issue causing the code, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain multiple quotes for an accurate estimate.
10. Will the P20E9 code affect my GMC Sierra's emissions test?
Yes, the presence of the P20E9 code in your GMC Sierra may cause it to fail an emissions test, as it indicates a problem with the vehicle's emissions control system. It is essential to address and repair the issue before undergoing an emissions test.
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