P2671 2016 GMC Sierra Code - Actuator High Control Circuit Group 2 High Voltage
Quick Answer
The Transmission Control Module (TCM) receives information from a variety of sensors, switches, and serial data information from other control modules. Common causes include Faulty Transmission Control Solenoid Valve, Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted. 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
- P2671 2016 GMC Sierra indicates Actuator High Control Circuit Group 2 High Voltage.
- Common causes
- Common causes include Faulty Transmission Control Solenoid Valve, Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted.
- 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 P2671 2016 GMC Sierra Description
What are the Possible Causes of the DTC P2671 2016 GMC Sierra?
- Faulty Transmission Control Solenoid Valve
- Faulty Transmission Control Module (TCM)
- Transmission Control Module harness is open or shorted
- Transmission Control Module circuit poor electrical connection
How to Fix the DTC P2671 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 P2671 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.
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Frequently Asked Questions about P2671 2016 GMC Sierra Code
1. What does the OBDII code P2671 mean on a 2016 GMC Sierra?
P2671 indicates a high voltage issue in the Actuator High Control Circuit Group 2, meaning there's an electrical problem in a specific actuator circuit.
2. What are the common symptoms of code P2671 in a 2016 GMC Sierra?
Symptoms may include an illuminated Check Engine Light, erratic engine performance, or failure of certain actuators to function correctly.
3. What causes the P2671 code to appear?
Common causes include damaged wiring, a faulty actuator, a short circuit, a defective control module, or corroded electrical connections.
4. Can I drive my 2016 GMC Sierra with the P2671 code?
While the vehicle may still be drivable, it’s not recommended as the issue could lead to further damage or unsafe driving conditions.
5. How do I diagnose the P2671 code on a GMC Sierra?
Diagnosis typically involves a visual inspection of the wiring and connectors, testing the actuator for proper operation, and using a multimeter to check for voltage irregularities.
6. What’s the most common fix for the P2671 code?
The most common fix is repairing or replacing damaged wiring or connectors, though replacing the actuator or control module may also be necessary.
7. How much does it cost to repair a P2671 code in a GMC Sierra?
Repair costs can vary but typically range from $100 to $500 depending on whether it’s a simple wiring repair or a part replacement.
8. Can a faulty ECM cause the P2671 code?
Yes, a malfunctioning Engine Control Module (ECM) could potentially cause this code if it fails to properly regulate the actuator circuit.
9. Is the P2671 code specific to GMC vehicles?
No, P2671 is a generic OBDII code, but the exact cause and repair steps may vary depending on the make and model of the vehicle.
10. What tools are needed to fix the P2671 code?
Basic tools include a diagnostic scanner, a multimeter for electrical testing, and possibly wiring repair tools like crimpers and heat shrink tubing.
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