Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with an electrical part in your car's transmission that helps control the pressure of the fluid inside. It's like a switch that isn't working right.
The P0748 code indicates an electrical issue with the pressure control solenoid 'A' in the transmission. This solenoid helps manage the hydraulic pressure needed for smooth gear shifting.
The pressure control solenoid 'A' is responsible for regulating hydraulic pressure in the transmission. An electrical malfunction in this solenoid can disrupt the transmission's ability to shift gears properly, leading to performance issues.
• Harsh or erratic shifting
• Transmission slipping
• Illuminated check engine light
• Faulty pressure control solenoid 'A'
• Damaged or corroded wiring or connectors
• Transmission control module (TCM) failure
Solenoid: An electromechanical device used to control fluid flow.
Transmission: A system in a vehicle that transmits power from the engine to the wheels.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the pressure control solenoid for proper operation.
• Replace the faulty pressure control solenoid.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Honda Accord
• Toyota Camry
• Ford F-150
• Regular transmission fluid changes
• Inspect wiring and connectors periodically
• Avoid aggressive driving habits
Transmission Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code has been commonly reported in vehicles with over 100,000 miles, particularly in models with known transmission issues.
High – This issue can lead to severe transmission damage if not addressed promptly.
Driving with a malfunctioning transmission can be dangerous and may lead to further vehicle damage.
• Vehicle at operating temperature
• Transmission in drive mode
The pressure control solenoid is located inside the transmission, usually accessible by removing the transmission pan.
Q: Can I drive with a P0748 code?
A: It's not recommended to drive with this code as it can lead to further transmission damage.
Q: How much does it cost to fix a P0748 code?
A: The repair cost can range from $200 to $600, depending on the exact issue and labor rates.
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