Engine-CodesInfiniti – P0963 Infiniti

P0963 Infiniti Code - Pressure Control Solenoid 'A' Control Circuit High

Quick Answer

The P0963 code in an Infiniti indicates a problem with the Pressure Control Solenoid 'A' control circuit being too high. Common causes include Faulty pressure control solenoid 'A', Wiring issues in the control circuit, ECM malfunction. 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
P0963 Infiniti indicates Pressure Control Solenoid 'A' Control Circuit High.
Common causes
Common causes include Faulty pressure control solenoid 'A', Wiring issues in the control circuit, ECM malfunction.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0963 Infiniti Description

The P0963 code in an Infiniti indicates a problem with the Pressure Control Solenoid 'A' control circuit being too high. The pressure control solenoid is a vital component of the transmission system, responsible for regulating the hydraulic pressure within the transmission. When the control circuit is reading a high voltage, it means that the solenoid is not functioning properly, which can lead to various issues with the transmission's performance.

OBDII Code P0963 Infiniti - Pressure Control Solenoid 'A' Control Circuit High
P0963 Infiniti Code - Pressure Control Solenoid 'A' Control Circuit High

Common Causes of P0963 Infiniti

  1. Faulty pressure control solenoid 'A'
  2. Wiring issues in the control circuit
  3. ECM malfunction
  4. Low transmission fluid levels
  5. Transmission fluid contamination

Symptoms of P0963 Infiniti

  1. Harsh or delayed shifting
  2. Transmission slipping
  3. Inability to shift gears
  4. Decreased fuel efficiency
  5. Illuminated check engine light

How to Fix P0963 Infiniti

  1. Begin by conducting a thorough inspection of the pressure control solenoid 'A' and the control circuit to identify any visible damage or corrosion.
  2. Test the solenoid and circuit for proper voltage and continuity using a multimeter to pinpoint the source of the high voltage.
  3. If the solenoid is found to be faulty, replace it with a new, OEM part to ensure proper function.
  4. Check the wiring harness for any damaged wires or loose connections, repairing or replacing them as needed.
  5. Clear the diagnostic trouble codes from the ECM and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P0963 Infiniti

The typical repair costs for addressing a P0963 code in an Infiniti can vary depending on the specific cause of the issue. On average, you can expect to pay between $200 and $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can fluctuate, so it's advisable to contact local shops for more accurate pricing information based on your location and vehicle details.

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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 P0963 Infiniti Code

1. What are the common symptoms of OBDII code P0963 in an Infiniti?

- Common symptoms include harsh shifting, transmission slipping, difficulty shifting gears, and the transmission going into limp mode.

2. What does the OBDII code P0963 in an Infiniti indicate?

- The code P0963 indicates a problem with the Pressure Control Solenoid 'A' Control Circuit High in the transmission.

3. What are the possible causes of OBDII code P0963 in an Infiniti?

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

4. How can I diagnose the issue related to OBDII code P0963 in my Infiniti?

- Diagnosis typically involves checking the transmission fluid level, inspecting the wiring and connectors for damage, testing the pressure control solenoid, and scanning the transmission control module for error codes.

5. Can I continue driving my Infiniti with OBDII code P0963 present?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the transmission and potentially cause unsafe driving conditions.

6. How can I repair OBDII code P0963 in my Infiniti?

- Repair options include replacing the pressure control solenoid, repairing or replacing damaged wiring or connectors, ensuring the transmission fluid level is correct, and resetting the trouble codes.

7. Is it possible to clear the OBDII code P0963 in my Infiniti without fixing the issue?

- Clearing the code without addressing the underlying problem may temporarily turn off the check engine light, but the issue will likely resurface, and the transmission may continue to experience problems.

8. Can a DIY enthusiast fix OBDII code P0963 in an Infiniti?

- While some aspects of diagnosing and repairing this code may be possible for a skilled DIY enthusiast, it is recommended to consult with a professional mechanic or transmission specialist for proper diagnosis and repair.

9. How much does it cost to repair OBDII code P0963 in an Infiniti?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a couple of hundred dollars for simple fixes like replacing a solenoid to over a thousand dollars for more extensive repairs.

10. How can I prevent OBDII code P0963 from occurring in my Infiniti in the future?

- To prevent this code from happening again, it's essential to ensure regular transmission maintenance, promptly address any transmission fluid leaks, and address any transmission-related issues as soon as they arise.

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