AutoCodes – Chevrolet – P2671 2017 Chevrolet Silverado

P2671 2017 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 2017 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.

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Code Popularity 213

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
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Code P2671 2017 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 2017 Chevrolet Silverado - Actuator High Control Circuit Group 2 High Voltage - AutoCodes.com — P2671 2017 Chevrolet Silverado Code - Actuator High Control Circuit Group 2 High Voltage

What does this mean?

What are the Possible Causes of the DTC P2671 2017 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 2017 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 2017 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 2017 Chevrolet Silverado code?

Need more information on how to fix the P2671 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P2671 in a 2017 Chevrolet Silverado?

- Common symptoms include rough idling, reduced engine performance, and potential stalling of the vehicle.

2. What does the OBDII code P2671 on a 2017 Chevrolet Silverado mean?

- The code indicates a fault in the Actuator High Control Circuit Group 2, specifically detecting high voltage levels.

3. What are the possible causes of OBDII code P2671 in a 2017 Chevrolet Silverado?

- Potential causes include a faulty actuator, wiring issues, a malfunctioning control module, or a problem with the electrical circuit.

4. How can I diagnose the source of OBDII code P2671 on my 2017 Chevrolet Silverado?

- To diagnose the issue, you may need to perform a visual inspection of the wiring, test the actuator, check the control module, and use a diagnostic scanner to gather more data.

5. Is it safe to drive my 2017 Chevrolet Silverado with OBDII code P2671?

- It is not recommended to drive the vehicle with this code active, as it can lead to further damage and potential safety hazards.

6. Can I reset the OBDII code P2671 in my 2017 Chevrolet Silverado?

- While you can attempt to clear the code with an OBDII scanner, it is crucial to address the underlying issue causing the fault to prevent the code from reappearing.

7. How much does it typically cost to repair OBDII code P2671 on a 2017 Chevrolet Silverado?

- Repair costs can vary depending on the exact cause of the issue, but it may involve replacing components like the actuator, control module, or repairing wiring, with costs ranging from a few hundred to over a thousand dollars.

8. Can I fix OBDII code P2671 in my 2017 Chevrolet Silverado on my own?

- If you have the necessary tools, experience, and access to repair information, you may be able to diagnose and fix the issue yourself. However, it is recommended to consult a professional if you're unsure.

9. Will OBDII code P2671 on a 2017 Chevrolet Silverado affect fuel efficiency?

- Yes, this fault can impact fuel efficiency due to engine performance issues, so it's essential to address the problem promptly.

10. How long does it usually take to repair OBDII code P2671 in a 2017 Chevrolet Silverado?

- Repair times can vary based on the specific cause of the code and the expertise of the mechanic, but it typically takes a few hours to a day for diagnosis and repair.