P2049 2016 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 2016 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 2016 GMC Sierra Description
What are the Possible Causes of the DTC P2049 2016 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 2016 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 2016 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 2016 GMC Sierra code?
Need more information on how to fix the P2049 2016 GMC Sierra code? Get Access to Factory Service Manuals
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Frequently Asked Questions about P2049 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code P2049 (Reductant Injector Control Circuit High Voltage) in a 2016 GMC Sierra?
- Common symptoms include reduced engine performance, decreased fuel efficiency, and the illumination of the check engine light.
2. What are the possible causes of OBDII code P2049 in a 2016 GMC Sierra?
- The code P2049 can be triggered by issues such as a faulty reductant injector, wiring problems in the injector circuit, or a malfunction in the powertrain control module.
3. How can I diagnose OBDII code P2049 in my 2016 GMC Sierra?
- Diagnosis typically involves using an OBDII scanner to retrieve the trouble codes, conducting a visual inspection of the injector and its wiring, and performing tests to check the injector's resistance and operation.
4. What are some repair tips for resolving OBDII code P2049 in a 2016 GMC Sierra?
- Repair may involve replacing the faulty reductant injector, repairing any damaged wiring in the circuit, or reprogramming the powertrain control module if necessary.
5. Can driving with OBDII code P2049 in a 2016 GMC Sierra cause further damage to the vehicle?
- Continued driving with P2049 can potentially lead to increased emissions, reduced engine efficiency, and potential damage to the catalytic converter over time.
6. How much does it typically cost to repair OBDII code P2049 in a 2016 GMC Sierra?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $200 to $600, including parts and labor.
7. Is it safe to continue driving my 2016 GMC Sierra with OBDII code P2049?
- While the vehicle may still be operable, it is recommended to address the issue promptly to prevent potential long-term damage and ensure optimal engine performance.
8. Can OBDII code P2049 in a 2016 GMC Sierra be fixed at home, or does it require professional assistance?
- Depending on your automotive repair skills and access to tools, some DIY enthusiasts may be able to address the issue themselves. However, due to the complexity of the system, professional assistance is often recommended.
9. Are there any recalls or technical service bulletins related to OBDII code P2049 in a 2016 GMC Sierra?
- It's advisable to check with the manufacturer or authorized service centers for any related recalls or technical service bulletins that may apply to your specific vehicle.
10. How can I prevent OBDII code P2049 from recurring in my 2016 GMC Sierra after repair?
- Regular maintenance, such as keeping up with scheduled services, addressing any check engine light promptly, and ensuring proper care of the vehicle's emission control system, can help prevent the reoccurrence of OBDII code P2049.
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