P2049 2014 GMC Sierra Code - Reductant Injector Control Circuit High Voltage
Quick Answer
The Reductant Injector is a component of selective catalytic reduction system used to dose the reductant fluid to the exhaust gas and participate in the reduction reactions. 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
- P2049 2014 GMC Sierra indicates Reductant Injector Control Circuit High Voltage.
- 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 P2049 2014 GMC Sierra Description
What are the Possible Causes of the DTC P2049 2014 GMC Sierra?
- Faulty Reductant Injector
- Reductant Injector harness is open or shorted
- Reductant Injector circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2049 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 P2049 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 P2049 2014 GMC Sierra code?
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Frequently Asked Questions about P2049 2014 GMC Sierra Code
1. What does the OBDII code P2049 mean on a 2014 GMC Sierra?
P2049 indicates a high voltage issue in the reductant injector control circuit, which is part of the diesel exhaust fluid (DEF) system responsible for reducing emissions.
2. What are common symptoms of the P2049 code in a 2014 GMC Sierra?
Symptoms may include the check engine light turning on, reduced engine performance, increased emissions, and possible DEF system warnings.
3. What causes the P2049 code to occur in a 2014 GMC Sierra?
Common causes include a faulty reductant injector, damaged wiring or connectors in the control circuit, or a malfunctioning reductant control module.
4. Can I drive my 2014 GMC Sierra with the P2049 code active?
While the truck may still be drivable, ignoring the code can lead to increased emissions, reduced fuel efficiency, and potential damage to the DEF system.
5. How is the P2049 code diagnosed on a 2014 GMC Sierra?
A mechanic will use an OBDII scanner to retrieve the code, inspect the reductant injector and its wiring, test the control circuit voltage, and verify proper operation of the DEF system.
6. How can I fix the P2049 code on my 2014 GMC Sierra?
Repairs may involve replacing the reductant injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the reductant control module.
7. How much does it cost to repair the P2049 code on a 2014 GMC Sierra?
Repair costs vary depending on the issue, but replacing a reductant injector typically costs $200–$500, while electrical repairs may cost $100–$300.
8. Can a blown fuse cause the P2049 code on a 2014 GMC Sierra?
Yes, a blown fuse in the reductant injector circuit can lead to high voltage issues and trigger the P2049 code.
9. Is the P2049 code related to emissions testing for my 2014 GMC Sierra?
Yes, the P2049 code affects the DEF system, which is crucial for reducing emissions. If unresolved, it may cause your vehicle to fail an emissions test.
10. Can I reset the P2049 code without fixing the problem on my 2014 GMC Sierra?
You can clear the code temporarily with an OBDII scanner, but it will likely return if the underlying issue is not addressed.
Discuss the causes and fixes for P2049 2014 GMC Sierra OBDII Code
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