P2055 Chevrolet Code - Reductant Injection Valve Circuit High Bank 1 Unit 2
Quick Answer
The P2055 Chevrolet diagnostic trouble code (DTC) specifically refers to a problem with the reductant injection valve circuit high on bank 1 unit 2. Common causes include Faulty Reductant Injection Valve: The most common cause of this DTC is a faulty reductant injection valve that is not functioning properly, Wiring Issues: Electrical problems such as damaged wiring, loose connections, or corrosion can also trigger this code, Faulty Control Module: A malfunctioning control module that controls the reductant injection system can also be a potential cause. 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
- P2055 Chevrolet indicates Reductant Injection Valve Circuit High Bank 1 Unit 2.
- Common causes
- Common causes include Faulty Reductant Injection Valve: The most common cause of this DTC is a faulty reductant injection valve that is not functioning properly, Wiring Issues: Electrical problems such as damaged wiring, loose connections, or corrosion can also trigger this code, Faulty Control Module: A malfunctioning control module that controls the reductant injection system can also be a potential cause.
- 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 P2055 Chevrolet Description
The P2055 Chevrolet diagnostic trouble code (DTC) specifically refers to a problem with the reductant injection valve circuit high on bank 1 unit 2. This code is typically found in diesel vehicles equipped with a selective catalytic reduction (SCR) system. The reductant injection valve is responsible for injecting a urea-based solution (AdBlue) into the exhaust stream to reduce harmful emissions. When the circuit high fault is detected, it indicates that there is an electrical issue with the reductant injection system.
Common Causes of P2055 Chevrolet
- Faulty Reductant Injection Valve: The most common cause of this DTC is a faulty reductant injection valve that is not functioning properly.
- Wiring Issues: Electrical problems such as damaged wiring, loose connections, or corrosion can also trigger this code.
- Faulty Control Module: A malfunctioning control module that controls the reductant injection system can also be a potential cause.
- Blown Fuse: A blown fuse related to the reductant injection system can cause the circuit high fault to occur.
- Software Issue: In some cases, a software glitch or programming error can lead to this DTC being triggered.
Symptoms of P2055 Chevrolet
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Performance: The vehicle may experience reduced performance, including decreased power and acceleration.
- Increased Emissions: The vehicle may produce higher emissions than usual, which can be detected during emissions testing.
- Poor Fuel Economy: A malfunctioning reductant injection valve circuit can lead to poor fuel economy as the SCR system may not be functioning optimally.
How to Fix P2055 Chevrolet
- Diagnose the Issue: Use a diagnostic scanner to retrieve the specific DTC and pinpoint the exact cause of the circuit high fault.
- Inspect Wiring and Connections: Check the wiring and connections related to the reductant injection valve for any damage, corrosion, or loose connections.
- Test Reductant Injection Valve: Test the reductant injection valve to determine if it is functioning properly. Replace if necessary.
- Check Control Module: Inspect the control module for any signs of malfunction. If faulty, replace with a new one.
- Clear DTC: Once the repair has been completed, clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P2055 Chevrolet
The typical repair costs for addressing a P2055 Chevrolet code can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty reductant injection valve can range from $200 to $500, including parts and labor. If additional components such as wiring or the control module need to be replaced, the total repair cost may increase. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your vehicle make and model.
Need more information about the P2055 Chevrolet code?
Need more information on how to fix the P2055 Chevrolet code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2055 Chevrolet code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2055 Chevrolet Code
No Frequently Asked Questions about P2055 Chevrolet Code found.
Discuss the causes and fixes for P2055 Chevrolet OBDII Code
Code P2055 Chevrolet 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.