Engine-CodesChrysler – P0748 Chrysler

P0748 Chrysler Code - Governor Pressure Solenoid Circuit Condition

Quick Answer

The P0748 Chrysler code refers to a Governor Pressure Solenoid Circuit Condition. Common causes include Faulty governor pressure solenoid, Electrical issues in the solenoid circuit, Wiring harness problems. 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 Chrysler indicates Governor Pressure Solenoid Circuit Condition.
Common causes
Common causes include Faulty governor pressure solenoid, Electrical issues in the solenoid circuit, Wiring harness problems.
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 12, 2024
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Code P0748 Chrysler Description

The P0748 Chrysler code refers to a Governor Pressure Solenoid Circuit Condition. This code is specific to Chrysler vehicles and indicates a problem with the governor pressure solenoid circuit in the transmission. The governor pressure solenoid is responsible for controlling the hydraulic pressure inside the transmission, which is crucial for shifting gears smoothly and efficiently. When this circuit malfunctions, it can lead to a variety of transmission issues that can impact the vehicle's performance and drivability.

OBDII Code P0748 Chrysler - Governor Pressure Solenoid Circuit Condition
P0748 Chrysler Code - Governor Pressure Solenoid Circuit Condition

Common Causes of P0748 Chrysler

  1. Faulty governor pressure solenoid
  2. Electrical issues in the solenoid circuit
  3. Wiring harness problems
  4. Transmission fluid contamination
  5. Internal transmission damage

Symptoms of P0748 Chrysler

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

How to Fix P0748 Chrysler

  1. Begin by diagnosing the specific cause of the issue using a scan tool to read the fault codes and performing a thorough inspection of the governor pressure solenoid circuit.
  2. Replace the governor pressure solenoid if it is found to be faulty, ensuring that the new solenoid is properly installed and connected.
  3. Check the wiring harness for any damage or corrosion, repairing or replacing any affected wires as needed.
  4. Inspect the transmission fluid for signs of contamination or debris, flushing and replacing the fluid if necessary.
  5. Test drive the vehicle to ensure that the transmission is shifting smoothly and that the issue has been resolved effectively.

Cost to Fix P0748 Chrysler

The typical repair costs for a P0748 Chrysler code can vary depending on the severity of the issue and the specific components that need to be replaced. On average, the cost of replacing a governor pressure solenoid can range from $200 to $500, including parts and labor. Additional costs may be incurred if there are wiring or transmission fluid issues that need to be addressed. It's important to note that diagnosis time and labor rates can vary, so it's advisable to check with local auto repair shops for a more accurate estimate.

Tech Notes for P0748 Chrysler

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

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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.

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