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 because it is getting too much power.
The P27D0 code indicates that the control circuit for the pressure control solenoid 'R' is experiencing a high voltage condition.
The pressure control solenoid 'R' is responsible for regulating hydraulic pressure in the transmission. When the control circuit for this solenoid registers a voltage higher than expected, the Powertrain Control Module (PCM) triggers the P27D0 code. This could be due to a short circuit, a faulty solenoid, or issues with the PCM itself.
• Harsh or erratic shifting
• Transmission slipping
• Illuminated check engine light
• Short circuit in the wiring
• Faulty pressure control solenoid
• Malfunctioning PCM
PCM: Powertrain Control Module, the computer that controls engine and transmission functions.
Solenoid: An electromechanical device that controls the flow of fluid in the transmission.
• Use a scan tool to confirm the code and check for other related codes.
• Inspect the wiring and connectors for damage or corrosion.
• Test the pressure control solenoid for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty pressure control solenoid.
• 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
• Regularly inspect transmission wiring and connectors.
• Perform scheduled transmission maintenance.
• Avoid harsh driving conditions.
Transmission Control Issue
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with the vehicle manufacturer for warranty coverage on transmission components.
The P27D0 code has been noted in vehicles with electronic transmission control systems, particularly in models with higher mileage.
Moderate – It is advisable to address this issue soon to avoid potential transmission damage.
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, typically accessible by removing the transmission pan.
Q: Can I drive with a P27D0 code?
A: It's not recommended to drive with this code active as it may lead to further transmission damage.
Q: How do I clear the P27D0 code?
A: The code can be cleared with an OBD-II scanner after the issue is repaired, but it may return if the underlying problem is not fixed.
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