Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a part in the car that helps control the pressure of the transmission fluid is not working right. It's like a switch that is stuck in the 'on' position.
The code indicates that the control circuit for the pressure control solenoid labeled 'S' is experiencing a high voltage condition, suggesting an electrical issue.
The P27D8 code is triggered when the Powertrain Control Module (PCM) detects a high voltage condition in the control circuit for the pressure control solenoid 'S'. This solenoid is responsible for regulating hydraulic pressure in the transmission to ensure smooth gear changes. A high voltage condition can indicate a short circuit, faulty wiring, or a malfunctioning solenoid.
• Transmission slipping
• Harsh or delayed shifting
• Illuminated check engine light
• Faulty pressure control solenoid 'S'
• Short circuit in the wiring
• Faulty PCM
PCM: Powertrain Control Module, the vehicle's computer that manages engine and transmission functions.
Solenoid: An electromechanical device that controls fluid flow in the transmission.
• Use a scan tool to verify the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the pressure control solenoid 'S' for proper operation.
• Replace the pressure control solenoid 'S' if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scan tool
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular transmission fluid checks
• Routine vehicle maintenance
• Inspect wiring and connectors periodically
Transmission Control
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult a professional mechanic for a thorough diagnosis.
Check if the vehicle's powertrain warranty covers transmission issues.
This code is relatively uncommon and often associated with electrical issues in newer vehicles.
Moderate – Address the issue soon to avoid transmission damage.
Driving with transmission issues can be unsafe and may lead to further vehicle damage.
• Vehicle at operating temperature
• Transmission in gear
The pressure control solenoid is located inside the transmission valve body.
Q: Can I drive with a P27D8 code?
A: It's not recommended to drive with this code as it can cause further transmission damage.
Q: How long does it take to fix a P27D8 code?
A: The repair time can vary, but it typically takes a few hours depending on the issue.
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