Engine-Codes.com
Engine-Codes – Acura – P0748 Acura

P0748 Acura Code - Pressure Control Solenoid 'A' Circuit System Fault

Quick Answer

The P0748 code for Acura vehicles indicates a fault in the Pressure Control Solenoid 'A' Circuit system. Common causes include Faulty pressure control solenoid 'A', Damaged or corroded wiring in the circuit, Malfunctioning PCM. 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
P0748 Acura indicates Pressure Control Solenoid 'A' Circuit System Fault.
Common causes
Common causes include Faulty pressure control solenoid 'A', Damaged or corroded wiring in the circuit, Malfunctioning PCM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0748 Acura Description

The P0748 code for Acura vehicles indicates a fault in the Pressure Control Solenoid 'A' Circuit system. The pressure control solenoid is responsible for regulating the hydraulic pressure within the transmission. This system plays a crucial role in ensuring smooth gear shifting, optimal fuel efficiency, and overall vehicle performance.

OBDII Code P0748 Acura - Pressure Control Solenoid 'A' Circuit System Fault
P0748 Acura Code - Pressure Control Solenoid 'A' Circuit System Fault

Common Causes of P0748 Acura

  1. Faulty pressure control solenoid 'A'
  2. Damaged or corroded wiring in the circuit
  3. Malfunctioning PCM
  4. Low transmission fluid levels
  5. Internal transmission issues

Symptoms of P0748 Acura

  1. Harsh or delayed shifting
  2. Transmission slipping
  3. Decreased fuel efficiency
  4. Illuminated check engine light
  5. Transmission overheating

How to Fix P0748 Acura

  1. Diagnose the issue by using a scan tool to retrieve the fault code and inspecting the pressure control solenoid 'A' circuit.
  2. Check the transmission fluid level and condition to ensure it is at the proper level and not contaminated.
  3. Inspect the wiring and connectors associated with the pressure control solenoid 'A' for any signs of damage or corrosion.
  4. Test the pressure control solenoid 'A' for proper operation and replace it if necessary.
  5. Clear the fault code from the PCM and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0748 Acura

The cost of repairing the Pressure Control Solenoid 'A' Circuit System Fault can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the parts for this repair can range from $150 to $300, while the labor costs can range from $150 to $300 as well. Therefore, the total repair cost can be expected to be between $300 and $600. It's important to note that these are rough estimates, and actual costs can vary based on factors such as the location of the repair shop, the vehicle's make and model, and the severity of the issue. It's recommended to consult with a professional mechanic for a more accurate cost estimate.

What does this mean?

Tech Notes for P0748 Acura

When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure and that the transmission will need to be rebuilt or replaced.

When is the Code Detected?

Engine Control Module (ECM) detectes an open or shorted condition on the solenoid circuit

Need more information about the P0748 Acura code?

Need more information on how to fix the P0748 Acura code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0748 Acura code diagnosed by a professional: Find a repair shop in your area

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 P0748 Acura Code

No Frequently Asked Questions about P0748 Acura Code found.

Discuss the causes and fixes for P0748 Acura OBDII Code

Submit a New Comment