P1049 2016 Chevrolet Silverado 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 2016 Chevrolet Silverado 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 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P1049 2016 Chevrolet Silverado?
- 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 2016 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 P1049 2016 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 P1049 2016 Chevrolet Silverado code?
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Frequently Asked Questions about P1049 2016 Chevrolet Silverado Code
1. What does OBDII code P1049 mean on a 2016 Chevrolet Silverado?
P1049 indicates a fault in the Reductant Injector High Control Circuit, specifically that it is experiencing high voltage.
2. What are the common symptoms of the P1049 code?
Symptoms include the Check Engine Light being illuminated, poor fuel efficiency, and possible issues with the vehicle’s selective catalytic reduction (SCR) system.
3. What causes the P1049 code to appear?
Common causes include a faulty reductant injector, damaged wiring or connectors in the reductant injector circuit, or a malfunctioning powertrain control module (PCM).
4. Can I still drive my Silverado with a P1049 code?
While the vehicle may still be drivable, ignoring the code can lead to reduced engine performance, increased emissions, and potential damage to the SCR system.
5. How do I diagnose the cause of the P1049 code?
Start by inspecting the wiring and connectors for the reductant injector for damage, corrosion, or loose connections. Use a multimeter to check voltage levels and continuity in the circuit.
6. What should I check first to fix the P1049 code?
Check the reductant injector and its wiring harness for visible damage, as this is often the most common issue.
7. How much does it cost to repair a P1049 code?
Repair costs vary depending on the issue, but replacing a reductant injector typically costs $200–$500, while addressing wiring issues may cost less.
8. Can a bad reductant injector cause the P1049 code?
Yes, a faulty reductant injector can cause high voltage in the control circuit, triggering the P1049 code.
9. Will clearing the code fix the P1049 issue?
Clearing the code may temporarily turn off the Check Engine Light, but the underlying issue must be addressed to prevent the code from returning.
10. Do I need special tools to fix the P1049 code?
A multimeter and an OBDII scanner are essential for diagnosing the issue. In some cases, additional tools may be needed to replace the reductant injector or repair wiring.
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