AutoCodes – GMC – P2669 2014 GMC Sierra

P2669 2014 GMC Sierra Code - Actuator High Control Circuit Group 2

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: P2669 2014 GMC Sierra indicates Actuator High Control Circuit Group 2.
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 342

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 P2669 2014 GMC Sierra 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 open or short to ground or voltage on the high side driver 2 for 1 s.

OBDII Code P2669 2014 GMC Sierra - Actuator High Control Circuit Group 2 - AutoCodes.com — P2669 2014 GMC Sierra Code - Actuator High Control Circuit Group 2

What does this mean?

What are the Possible Causes of the DTC P2669 2014 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 P2669 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 P2669 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 P2669 2014 GMC Sierra code?

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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 P2669 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P2669 in a 2014 GMC Sierra?

The common symptoms of P2669 typically include engine misfires, rough idle, reduced engine performance, and the illumination of the Check Engine Light.

2. What does the OBDII code P2669 in a 2014 GMC Sierra indicate?

OBDII code P2669 indicates an issue with the Actuator High Control Circuit Group 2 in the vehicle's engine.

3. What are the possible causes of OBDII code P2669 in a 2014 GMC Sierra?

Possible causes of P2669 include a faulty actuator, wiring issues in the control circuit, a defective ECM (Engine Control Module), or a problem with the oil control valve.

4. How can I diagnose the OBDII code P2669 in my 2014 GMC Sierra?

Diagnosing P2669 typically involves checking the actuator, inspecting the wiring for any damage, testing the oil control valve, and scanning the ECM for any related fault codes.

5. Can I continue driving my 2014 GMC Sierra with OBDII code P2669?

It is not recommended to drive your vehicle with an active P2669 code as it can lead to further engine damage and performance issues. It is best to address the problem promptly.

6. How can I repair OBDII code P2669 in my 2014 GMC Sierra?

Repairing P2669 may involve replacing the actuator, repairing any damaged wiring, replacing the oil control valve, or reprogramming the ECM. It is advisable to consult a professional mechanic for a thorough diagnosis and repair.

7. Are there any DIY tips for fixing OBDII code P2669 in a 2014 GMC Sierra?

While some basic checks like inspecting the wiring connections can be performed by DIY enthusiasts, resolving P2669 often requires specialized tools and expertise. It is best to seek professional help for an accurate repair.

8. How serious is OBDII code P2669 in a 2014 GMC Sierra?

Ignoring OBDII code P2669 can lead to engine performance issues, increased fuel consumption, and potential damage to engine components. It is important to address this code promptly to prevent further problems.

9. Can a simple reset of the Check Engine Light fix OBDII code P2669 in my 2014 GMC Sierra?

Resetting the Check Engine Light may temporarily clear the code, but it will not fix the underlying issue causing P2669. It is crucial to diagnose and repair the root cause of the problem to prevent future issues.

10. Is OBDII code P2669 a common issue in 2014 GMC Sierra vehicles?

While not extremely common, OBDII code P2669 can occur in 2014 GMC Sierra vehicles due to various factors like component wear, electrical issues, or poor maintenance. Regular vehicle servicing can help prevent such problems.