P1049 2014 GMC Sierra Code - Reductant Injector High 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
- P1049 2014 GMC Sierra indicates Reductant Injector High 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 P1049 2014 GMC Sierra Description
What are the Possible Causes of the DTC P1049 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 P1049 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 P1049 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 P1049 2014 GMC Sierra code?
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Frequently Asked Questions about P1049 2014 GMC Sierra Code
What does the OBDII code P1049 mean on a 2014 GMC Sierra?
P1049 indicates a problem with the reductant injector high control circuit, specifically high voltage being detected.
What are the common symptoms of code P1049 on a GMC Sierra?
Symptoms may include the check engine light turning on, reduced engine performance, or issues with the diesel exhaust fluid (DEF) system.
What causes the P1049 code to appear?
Common causes include a faulty reductant injector, damaged wiring or connectors in the reductant control circuit, or issues with the reductant control module.
Can I drive my 2014 GMC Sierra with the P1049 code?
It is not recommended to drive for extended periods as the issue may affect the vehicle's emissions system and could lead to further damage.
How do I diagnose the P1049 code?
Start by using an OBDII scanner to confirm the code, then inspect the wiring and connectors for damage, and test the reductant injector for proper operation.
What tools do I need to fix the P1049 code?
You’ll need an OBDII scanner, a multimeter for testing voltage, and possibly replacement parts like a reductant injector or wiring components.
How much does it cost to fix the P1049 code?
Repair costs can vary, but replacing a reductant injector typically costs between $200 and $500, while wiring repairs may cost less depending on complexity.
Can a software issue cause the P1049 code?
While rare, a faulty reductant control module or outdated software could potentially cause this code and may require reprogramming or replacement.
How do I prevent the P1049 code from recurring?
Regularly inspect and maintain the DEF system, including the reductant injector and wiring, and address any warning signs promptly.
Will clearing the P1049 code fix the problem?
Clearing the code without addressing the underlying issue is only a temporary solution, and the code will likely return.
Discuss the causes and fixes for P1049 2014 GMC Sierra OBDII Code
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