P20E9 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC P20E9 2017 Chevrolet Silverado?
- 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 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 P20E9 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.
Need more information about the P20E9 2017 Chevrolet Silverado code?
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Frequently Asked Questions about P20E9 2017 Chevrolet Silverado Code
1. What does the OBDII code P20E9 on a 2017 Chevrolet Silverado indicate?
The code P20E9 specifically points to a Reductant High Pressure issue in the emissions control system.
2. What are the common symptoms of a Reductant High Pressure fault in a Chevrolet Silverado?
Common symptoms include the illumination of the Check Engine Light, reduced engine performance, and possible issues with the exhaust system.
3. What are the potential causes of the P20E9 code in a 2017 Silverado?
Possible causes of the P20E9 code include a faulty reductant pressure sensor, issues with the reductant pump, clogged reductant lines, or a malfunctioning selective catalyst reduction (SCR) system.
4. How can I diagnose the P20E9 code on my Chevrolet Silverado?
Diagnosing the P20E9 code may involve using a scan tool to read the code, checking the reductant pressure sensor for proper operation, inspecting the reductant pump and lines for any obstructions, and testing the SCR system components.
5. Can I continue driving my Chevrolet Silverado with the P20E9 code?
It is not recommended to continue driving with the P20E9 code illuminated, as it may lead to increased emissions and potential damage to the catalytic converter and other emissions components.
6. How can I repair the Reductant High Pressure issue in my 2017 Silverado?
Repairing the P20E9 code may involve replacing the faulty reductant pressure sensor, clearing any obstructions in the reductant pump or lines, or addressing any issues with the SCR system components as needed.
7. Will resetting the OBDII system clear the P20E9 code in my Chevrolet Silverado?
While resetting the OBDII system may temporarily clear the code, it is important to diagnose and address the underlying issue causing the P20E9 code to prevent it from reoccurring.
8. How much does it typically cost to repair a Reductant High Pressure fault in a Chevrolet Silverado?
The cost of repairing a P20E9 code can vary depending on the specific cause of the issue, but it may involve parts and labor costs ranging from a few hundred to over a thousand dollars.
9. Can a DIY enthusiast fix the P20E9 code in a Chevrolet Silverado?
While some aspects of diagnosing and repairing the P20E9 code may be within the capabilities of a DIY enthusiast, complex issues with the emissions control system may require professional expertise and specialized tools.
10. How often does the Reductant High Pressure issue occur in 2017 Chevrolet Silverados?
The occurrence of the P20E9 code can vary, but it is not uncommon in vehicles with high mileage or those that have not been properly maintained in terms of emissions system components.
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