AutoCodes – GMC – P2826 2017 GMC Sierra

P2826 2017 GMC Sierra Code - Transmission Control Solenoid Valve 9 Control Circuit Low Voltage

Quick Answer

The Transmission Control Solenoid Valve Solenoid Valve is an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve. 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: P2826 2017 GMC Sierra indicates Transmission Control Solenoid Valve 9 Control Circuit Low Voltage.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve.
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 203

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 Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2826 2017 GMC Sierra Description

The Transmission Control Solenoid Valve Solenoid Valve is an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port. Opening the exhaust port decreases the output fluid pressure regulated by the Transmission Control Solenoid Valve, which ultimately decreases line pressure. The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM). The Diagnostic Trouble Code (DTC) is set when the Transmission Control Solenoid Valve Control Circuit commanded state does not match the actual state for greater than 1 s.

OBDII Code P2826 2017 GMC Sierra - Transmission Control Solenoid Valve 9 Control Circuit Low Voltage - AutoCodes.com — P2826 2017 GMC Sierra Code - Transmission Control Solenoid Valve 9 Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2826 2017 GMC Sierra?

Low transmission fluid level
Dirty transmission fluid
Faulty Transmission Control Solenoid Valve
Transmission Control Solenoid Valve harness is open or shorted
Transmission Control Solenoid Valve circuit poor electrical connection
Faulty Transmission Control Module (TCM)

How to Fix the DTC P2826 2017 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 P2826 2017 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 P2826 2017 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 P2826 2017 GMC Sierra Code

1. What does the OBDII code P2826 mean on a 2017 GMC Sierra?

P2826 indicates a low voltage issue in the control circuit of Transmission Control Solenoid Valve 9, which helps regulate the hydraulic pressure in the transmission.

2. What are the symptoms of code P2826 in a 2017 GMC Sierra?

Common symptoms include harsh or delayed shifting, transmission slipping, poor fuel efficiency, and the check engine light being illuminated.

3. What causes the P2826 code to appear in a 2017 GMC Sierra?

Possible causes include damaged wiring or connectors in the solenoid circuit, a faulty transmission control solenoid, a failing transmission control module (TCM), or low transmission fluid levels.

4. Can low transmission fluid cause the P2826 code?

Yes, low or dirty transmission fluid can reduce hydraulic pressure and trigger the P2826 code.

5. How do you diagnose the P2826 code on a 2017 GMC Sierra?

Diagnosis involves using a scan tool to confirm the code, inspecting the wiring and connectors for damage, checking the transmission fluid level, and testing the solenoid and TCM functionality.

6. Is it safe to drive a 2017 GMC Sierra with the P2826 code?

Driving with this code is not recommended, as it can lead to further transmission damage or unsafe driving conditions due to shifting issues.

7. How do you fix the P2826 code on a 2017 GMC Sierra?

Repairs may include replacing the faulty solenoid, repairing or replacing damaged wiring or connectors, refilling or flushing the transmission fluid, or reprogramming/replacing the TCM.

8. How much does it cost to fix the P2826 code on a 2017 GMC Sierra?

Repair costs vary but can range from $150 to $400 for solenoid replacement, with higher costs if TCM replacement or wiring repairs are required.

9. Can a weak battery cause the P2826 code in a 2017 GMC Sierra?

A weak or failing battery can lead to low voltage issues in the transmission control circuit, potentially triggering the P2826 code.

10. Does clearing the P2826 code solve the issue?

Clearing the code temporarily erases it but does not fix the underlying problem. Proper diagnosis and repair are necessary to prevent the code from returning.