AutoCodes – GMC – P0962 2017 GMC Sierra

P0962 2017 GMC Sierra Code - Line Pressure Control Solenoid Valve Control Circuit Low Voltage

Quick Answer

The line pressure control solenoid 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: P0962 2017 GMC Sierra indicates Line Pressure Control Solenoid Valve Control Circuit Low Voltage.
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 194

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 P0962 2017 GMC Sierra Description

The line pressure control solenoid is part of the control solenoid valve assembly which has no serviceable parts. The normally high line pressure control solenoid regulates and directs the pressure control solenoid oil pressure to the isolator/pressure regulator valve. Increasing pressure control solenoid line pressure increases transmission line pressure. The Transmission Control Module (TCM) varies the current to the line pressure control solenoid through a low side driver. Decreasing the current to the line pressure control solenoid increases line pressure control solenoid oil pressure by closing OFF the solenoid exhaust port. Increasing the current to the line pressure control solenoid decreases line pressure control oil pressure by opening the solenoid exhaust port. Line pressure control solenoid 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 the excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected the high-side driver will reset.
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects a short to ground or an open/high resistance on the line pressure control solenoid control circuit for 2 s.

OBDII Code P0962 2017 GMC Sierra - Line Pressure Control Solenoid Valve Control Circuit Low Voltage - AutoCodes.com — P0962 2017 GMC Sierra Code - Line Pressure Control Solenoid Valve Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0962 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 P0962 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 P0962 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 P0962 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 P0962 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P0962 in a 2017 GMC Sierra?

- Common symptoms include harsh shifting, transmission slippage, decreased fuel efficiency, and the transmission going into limp mode.

2. What does the OBDII code P0962 on a 2017 GMC Sierra indicate?

- The code P0962 indicates a problem with the Line Pressure Control Solenoid Valve Control Circuit having low voltage.

3. What are the possible causes of OBDII code P0962 in a 2017 GMC Sierra?

- Possible causes include a faulty line pressure control solenoid valve, damaged wiring or connectors in the control circuit, low transmission fluid levels, or a malfunctioning transmission control module.

4. How can I diagnose the issue causing OBDII code P0962 in my 2017 GMC Sierra?

- Diagnosing the issue may involve checking the transmission fluid levels, inspecting the wiring and connectors in the control circuit, testing the line pressure control solenoid valve, and scanning the transmission control module for other error codes.

5. Can I continue driving my 2017 GMC Sierra with the OBDII code P0962?

- It is not recommended to continue driving with the code P0962 as it can lead to further damage to the transmission. It is best to address the issue promptly.

6. How can I repair OBDII code P0962 in my 2017 GMC Sierra?

- Repairing the issue may involve replacing the line pressure control solenoid valve, repairing or replacing damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the error code with a diagnostic tool.

7. Is it possible to reset the OBDII code P0962 in a 2017 GMC Sierra without fixing the underlying issue?

- While it is possible to clear the error code temporarily, it is not recommended as the underlying issue causing the code will persist and may lead to more serious problems in the future.

8. Are there any preventive maintenance tips to avoid OBDII code P0962 in a 2017 GMC Sierra?

- Regularly checking and maintaining proper transmission fluid levels, addressing any transmission issues promptly, and ensuring the electrical components in the transmission system are in good condition can help prevent code P0962.

9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P0962 in a 2017 GMC Sierra?

- Depending on the root cause of the issue, a DIY enthusiast with basic knowledge may be able to address the code by inspecting wiring, connectors, and fluid levels. However, complex repairs may require professional assistance.

10. How much can I expect to pay for repairing OBDII code P0962 in a 2017 GMC Sierra at a mechanic or dealership?

- The cost of repairing code P0962 can vary depending on the exact cause of the issue, labor rates, and parts needed. It is recommended to obtain quotes from different mechanics or dealerships for an accurate estimate.