AutoCodes – Generic – P0964

P0964 Code - Pressure Control Solenoid Valve 2 Control Circuit Open

Quick Answer

The pressure control solenoid 2 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: P0964 indicates Pressure Control Solenoid Valve 2 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 16,521

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 P0964 Description

The pressure control solenoid 2 is part of the control solenoid valve assembly which has no serviceable parts. The normally high-pressure control solenoid 2 regulates and directs the pressure control solenoid 2 oil pressure to the 3-5 reverse clutch regulator valve and 3-5 reverse clutch boost valve. Increasing pressure control solenoid 2 pressure increases pressure to the 3-5 reverse clutch. The Transmission Control Module (TCM) varies the current to the pressure control solenoid 2 through a low side driver. Decreasing the current to the pressure control solenoid 2 increases pressure control solenoid 2 oil pressure by closing OFF the solenoid exhaust port. Increasing the current to the pressure control solenoid 2 decreases pressure control solenoid 2 oil pressure by opening the solenoid exhaust port. Pressure control solenoid 2 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.
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects an open on the pressure control solenoid valve 2 control circuit for 1 s.

OBDII Code P0964 - Pressure Control Solenoid Valve 2 Control Circuit Open - AutoCodes.com — P0964 Code - Pressure Control Solenoid Valve 2 Control Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0964?

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 P0964?

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 P0964 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 P0964 code?

Need more information on how to fix the P0964 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0964 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0964 Buick — Pressure Control Solenoid Valve 2 Control Circuit Open
P0964 Cadillac — Pressure Control Solenoid Valve 2 Control Circuit Open
P0964 Chevrolet — Pressure Control Solenoid Valve 2 Control Circuit Open
P0964 Dodge — Pressure Control Solenoid 'B' Control Circuit/Open
P0964 GMC — Pressure Control Solenoid Valve 2 Control Circuit Open

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 P0964 Code

1. What are the common symptoms of OBDII code P0964?

Symptoms may include harsh shifting, transmission slippage, poor fuel efficiency, and illuminated Check Engine light.

2. What does the OBDII code P0964 indicate?

The code P0964 indicates a malfunction in the Pressure Control Solenoid Valve 2 control circuit, specifically an open circuit.

3. What are the possible causes of OBDII code P0964?

Possible causes may include a faulty pressure control solenoid valve 2, damaged wiring or connectors in the control circuit, low transmission fluid level, or a malfunctioning transmission control module.

4. How can I diagnose the cause of OBDII code P0964?

Diagnosis typically involves checking the transmission fluid level, inspecting the wiring and connectors for damage, testing the pressure control solenoid valve 2, and scanning the transmission control module for any related fault codes.

5. Can I drive my vehicle with OBDII code P0964?

It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the transmission and affect drivability.

6. How serious is OBDII code P0964?

OBDII code P0964 is a serious issue that can impact the performance and reliability of the transmission if left unresolved.

7. How can OBDII code P0964 be repaired?

Repair options may include replacing the pressure control solenoid valve 2, repairing or replacing damaged wiring or connectors, topping up the transmission fluid, or reprogramming the transmission control module.

8. Are there any DIY repair tips for OBDII code P0964?

DIY repair is possible for this code if you have the necessary tools and experience. However, it is recommended to consult a professional mechanic for an accurate diagnosis and repair.

9. How much does it cost to fix OBDII code P0964?

The cost of repair can vary depending on the specific cause of the code, the labor rates in your area, and the parts needed. It is advisable to obtain quotes from different mechanics or repair shops.

10. How can I prevent OBDII code P0964 from occurring again?

Regular maintenance of the transmission, checking the fluid levels, and addressing any issues promptly can help prevent the recurrence of OBDII code P0964.

1. What are the common symptoms of OBDII code P0964?

Symptoms of P0964 may include harsh shifting, transmission slippage, decreased fuel efficiency, and the transmission going into limp mode.

2. What causes the OBDII code P0964 to trigger?

The P0964 code is typically triggered by an open circuit in the control circuit of Pressure Control Solenoid Valve 2, which can be caused by damaged wiring, a faulty solenoid, or a bad transmission control module.

3. How serious is the OBDII code P0964?

P0964 should be addressed promptly as it can lead to transmission issues and potential damage if left unresolved. It is recommended to have the vehicle diagnosed and repaired as soon as possible.

4. Can I drive with the OBDII code P0964?

It is not recommended to drive with the P0964 code present, as it can cause further damage to the transmission. It is best to have the issue diagnosed and repaired before driving the vehicle again.

5. How do I diagnose the OBDII code P0964?

Diagnosing P0964 involves using a scan tool to check for the code, inspecting the wiring and connectors related to the pressure control solenoid valve, and testing the solenoid itself for proper function.

6. What is the typical repair for OBDII code P0964?

The typical repair for P0964 involves repairing or replacing damaged wiring, replacing the pressure control solenoid valve if faulty, or addressing any issues with the transmission control module.

7. Can I repair the OBDII code P0964 myself?

Repairing P0964 may require advanced knowledge of automotive systems and specialized tools. It is recommended to consult with a professional mechanic or technician to properly diagnose and repair the issue.

8. Are there any tips to prevent OBDII code P0964 from occurring?

Regularly servicing the transmission, checking for damaged wiring, and addressing any transmission issues promptly can help prevent the occurrence of P0964.

9. How much does it cost to fix OBDII code P0964?

The cost of repairing P0964 can vary depending on the extent of the damage, the labor rates of the repair shop, and the cost of any necessary parts. It is advisable to obtain quotes from different mechanics for an accurate estimate.

10. Can resetting the OBDII code P0964 solve the issue?

Simply resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing P0964. It is important to diagnose and repair the root cause of the problem to prevent further issues.