P0968 2017 GMC Sierra Code - Pressure Control Solenoid Valve 3 Control Circuit Open
Quick Answer
The OBD-II trouble code P0968 for a 2017 GMC Sierra refers to an issue with the Pressure Control Solenoid Valve 3 Control Circuit being open. Common causes include Faulty pressure control solenoid valve: The solenoid valve itself may be faulty, causing an open circuit, Wiring issues: Damaged or corroded wiring connections to the solenoid valve can result in an open circuit, PCM malfunction: A malfunction in the powertrain control module can disrupt the signal to the 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
- P0968 2017 GMC Sierra indicates Pressure Control Solenoid Valve 3 Control Circuit Open.
- Common causes
- Common causes include Faulty pressure control solenoid valve: The solenoid valve itself may be faulty, causing an open circuit, Wiring issues: Damaged or corroded wiring connections to the solenoid valve can result in an open circuit, PCM malfunction: A malfunction in the powertrain control module can disrupt the signal to the 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 P0968 2017 GMC Sierra Description
The OBD-II trouble code P0968 for a 2017 GMC Sierra refers to an issue with the Pressure Control Solenoid Valve 3 Control Circuit being open. This means that the powertrain control module (PCM) has detected an open circuit in the electrical system that controls the pressure control solenoid valve 3 in the transmission. This valve is responsible for regulating the hydraulic pressure within the transmission to ensure smooth shifting and optimal performance. When this circuit is open, it can lead to improper transmission operation, including harsh shifts, slipping, or even complete transmission failure.
Common Causes of P0968 2017 GMC Sierra
- Faulty pressure control solenoid valve: The solenoid valve itself may be faulty, causing an open circuit.
- Wiring issues: Damaged or corroded wiring connections to the solenoid valve can result in an open circuit.
- PCM malfunction: A malfunction in the powertrain control module can disrupt the signal to the solenoid valve.
- Transmission fluid contamination: Contaminated transmission fluid can cause damage to the solenoid valve or its electrical connections.
- Electrical system issues: General electrical problems within the vehicle can lead to circuit malfunctions, affecting the solenoid valve's operation.
Symptoms of P0968 2017 GMC Sierra
- Harsh or delayed shifting: The transmission may shift roughly or take longer than normal to shift gears.
- Slipping transmission: The transmission may slip in and out of gear, causing a lack of power or inconsistent acceleration.
- Transmission overheating: Due to improper pressure regulation, the transmission may overheat, leading to further damage.
- Illuminated Check Engine Light: The vehicle's onboard diagnostics system may trigger the Check Engine Light to alert the driver of a potential issue.
- Decreased fuel efficiency: The vehicle may experience reduced fuel economy due to the transmission operating inefficiently.
How to Fix P0968 2017 GMC Sierra
- Diagnose the issue: Use a scan tool to retrieve the trouble code and perform further diagnostics to pinpoint the exact cause of the open circuit.
- Inspect wiring and connections: Check the wiring harness and connections leading to the pressure control solenoid valve for any damage, corrosion, or loose connections.
- Test the pressure control solenoid valve: Test the solenoid valve itself to determine if it is functioning correctly or if it needs to be replaced.
- Repair or replace faulty components: Depending on the diagnosis, repair or replace any damaged wiring, connectors, or the pressure control solenoid valve.
- Clear the trouble code: Once the repair is complete, clear the trouble code from the PCM's memory and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0968 2017 GMC Sierra
The typical repair costs for addressing a P0968 trouble code in a 2017 GMC Sierra can vary depending on the exact cause of the issue. Generally, the cost of replacing a pressure control solenoid valve can range from $150 to $300, while addressing wiring or electrical issues may cost between $100 to $200. Labor costs can add an additional $80 to $150 per hour, and the total repair bill can range from $300 to $600 or more. It's important to note that these estimates are rough guidelines, and actual costs can vary based on the specific diagnosis and repair process. Be sure to consult with a qualified mechanic or repair shop for a more accurate cost estimate based on your vehicle's specific needs.
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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.
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