AutoCodes – GMC – P0968 2017 GMC Sierra

P0968 2017 GMC Sierra Code - Pressure Control Solenoid Valve 3 Control Circuit Open

Quick Answer

The pressure control solenoid 3 is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid, Faulty Control Solenoid Valve Assembly, Control Solenoid Valve Assembly 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: P0968 2017 GMC Sierra indicates Pressure Control Solenoid Valve 3 Control Circuit Open.
Common causes: Common causes include Low transmission fluid, Faulty Control Solenoid Valve Assembly, Control Solenoid Valve Assembly 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 250

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 P0968 2017 GMC Sierra Description

The pressure control solenoid 3 is part of the control solenoid valve assembly which has no serviceable parts. The normally high-pressure control solenoid 3 regulates and directs the pressure control solenoid 3 oil pressure to the 4-5-6 clutch regulator valve and 4-5-6 clutch boost valve. Increasing pressure control solenoid 3 oil pressure increases oil pressure to the 4-5-6 clutch assembly. The Transmission Control Module varies the current to the pressure control solenoid 3 through a low side driver. Decreasing the current to the pressure control solenoid 3 increases pressure control solenoid 3 oil pressure by closing OFF the solenoid exhaust port. Increasing the current to the pressure control solenoid 3 decreases pressure control solenoid 3 oil pressure by opening the solenoid exhaust port. Pressure control solenoid 3 power is supplied by the Transmission Control Module through a high side driver. The high-side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected the high-side driver will reset.

OBDII Code P0968 2017 GMC Sierra - Pressure Control Solenoid Valve 3 Control Circuit Open - AutoCodes.com — P0968 2017 GMC Sierra Code - Pressure Control Solenoid Valve 3 Control Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0968 2017 GMC Sierra?

Low transmission fluid
Faulty Control Solenoid Valve Assembly
Control Solenoid Valve Assembly harness is open or shorted
Control Solenoid Valve Assembly circuit poor electrical connection

How to Fix the DTC P0968 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 P0968 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 P0968 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 P0968 2017 GMC Sierra Code

1. What does the OBDII code P0968 mean on a 2017 GMC Sierra?

P0968 indicates an issue with the Pressure Control Solenoid Valve 3 Control Circuit, specifically that it is open or has a fault preventing normal operation.

2. What are the common symptoms of P0968 in a 2017 GMC Sierra?

Symptoms may include harsh or erratic shifting, transmission slipping, failure to shift gears, and the Check Engine Light being illuminated.

3. What causes the P0968 code to appear in a 2017 GMC Sierra?

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

4. Can driving with a P0968 code damage my 2017 GMC Sierra?

Yes, continued driving with this code can cause further damage to the transmission due to improper pressure regulation, leading to expensive repairs.

5. How do I diagnose a P0968 code on a 2017 GMC Sierra?

Diagnosis involves checking the transmission fluid level, inspecting the wiring and connectors for damage, testing the pressure control solenoid, and scanning the TCM for additional codes.

6. How do I fix the P0968 code on my 2017 GMC Sierra?

Repairs may include replacing the pressure control solenoid, repairing or replacing damaged wiring, cleaning corroded connectors, updating or reprogramming the TCM, or refilling low transmission fluid.

7. How much does it cost to repair a P0968 code on a 2017 GMC Sierra?

Repair costs vary depending on the issue but may range from $100 to $500 for parts and labor, with higher costs for major transmission repairs.

8. Can low transmission fluid cause the P0968 code on a 2017 GMC Sierra?

Yes, low or contaminated transmission fluid can lead to improper operation of the pressure control solenoid and trigger the P0968 code.

9. Is it safe to clear the P0968 code without fixing the problem on a 2017 GMC Sierra?

Clearing the code without addressing the underlying issue is not recommended, as the problem will likely return and could cause further damage.

10. Do I need to replace the entire transmission to fix a P0968 code on a 2017 GMC Sierra?

Not necessarily. In most cases, the issue can be resolved by repairing or replacing the pressure control solenoid or addressing wiring and connection problems.