AutoCodes – Chevrolet – P2671 2016 Chevrolet Silverado

P2671 2016 Chevrolet Silverado 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 Chevrolet Silverado 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,163

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 18, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2671 2016 Chevrolet Silverado Description

The Transmission Control Module (TCM) receives information from a variety of sensors, switches, and serial data information from other control modules. This information is used to control a combination of solenoid valves to obtain the correct line pressure, gear ratio, and torque converter clutch operation. The Transmission Control Solenoid Valves are electro-mechanically operated valves. The valves are controlled by an electric current through the solenoid. The TCM high side driver 2 is located inside of the control solenoid valve assembly which has no serviceable parts. The high side driver 2 provides power to the Transmission Control Module pressure control solenoids and shift solenoids. The Diagnostic Trouble Code (DTC) will be set when the TCM detects an internal short to voltage on the high side driver 2 circuit for 1 s after engine start.

OBDII Code P2671 2016 Chevrolet Silverado - Actuator High Control Circuit Group 2 High Voltage - AutoCodes.com — P2671 2016 Chevrolet Silverado Code - Actuator High Control Circuit Group 2 High Voltage

What does this mean?

What are the Possible Causes of the DTC P2671 2016 Chevrolet Silverado?

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 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 P2671 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 P2671 2016 Chevrolet Silverado code?

Need more information on how to fix the P2671 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2671 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2671 2016 Chevrolet Silverado Code

1. What are common symptoms of OBDII code P2671 in a 2016 Chevrolet Silverado?

- Common symptoms of code P2671 include rough idling, decreased fuel efficiency, and potential issues with acceleration.

2. What does the OBDII code P2671 Actuator High Control Circuit Group 2 High Voltage mean for a 2016 Chevrolet Silverado?

- This code indicates a high voltage condition in Actuator High Control Circuit Group 2 of the vehicle, which can affect engine performance.

3. What are possible causes of OBDII code P2671 in a 2016 Chevrolet Silverado?

- Possible causes of code P2671 can include a faulty actuator, wiring issues, a defective control module, or a problem with the electrical system.

4. How serious is OBDII code P2671 in a 2016 Chevrolet Silverado?

- While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential damage to the engine and ensure optimal performance.

5. Can I continue driving my 2016 Chevrolet Silverado with OBDII code P2671?

- It is generally not recommended to drive the vehicle extensively with this code present, as it can lead to reduced fuel efficiency and potential engine issues.

6. How can I diagnose OBDII code P2671 in my 2016 Chevrolet Silverado?

- Diagnosing code P2671 typically involves using an OBDII scanner to read the code, checking the actuator and related components for faults, and inspecting the wiring for any issues.

7. What are some repair tips for fixing OBDII code P2671 in a 2016 Chevrolet Silverado?

- Repair tips may include checking and repairing any damaged wiring, replacing a faulty actuator, resetting the fault code after repairs, and conducting a thorough test drive.

8. Can a DIY enthusiast fix OBDII code P2671 in a 2016 Chevrolet Silverado?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address code P2671 by following repair guides and procedures closely.

9. How much does it cost to repair OBDII code P2671 in a 2016 Chevrolet Silverado?

- The cost of repairing code P2671 can vary based on the root cause of the issue, with potential expenses including parts replacement, labor costs, and diagnostic fees.

10. Is it necessary to reset the ECU after repairing OBDII code P2671 in a 2016 Chevrolet Silverado?

- Yes, it is recommended to reset the Engine Control Unit (ECU) after repairing code P2671 to clear the fault code and ensure the system recognizes the repairs.