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 your car that helps control the pressure in the transmission isn't getting enough power. It's like when a toy doesn't work because the batteries are running low.
The code indicates that the electrical circuit controlling the pressure control solenoid 'S' is experiencing low voltage or insufficient power.
The pressure control solenoid is a component in the transmission system that regulates hydraulic pressure to ensure smooth gear shifts. The 'S' solenoid is one of several solenoids used for this purpose. A 'Control Circuit Low' error suggests that the electrical circuit responsible for powering this solenoid is not receiving adequate voltage, which can result in improper transmission operation.
• Harsh or erratic shifting
• Transmission slipping
• Check Engine Light illuminated
• Faulty pressure control solenoid
• Damaged wiring or connectors
• Failed transmission control module (TCM)
Solenoid: An electromechanical device that controls fluid flow in the transmission.
TCM: Transmission Control Module, the computer that manages transmission operations.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the solenoid for proper operation and resistance.
• Repair or replace damaged wiring or connectors.
• Replace the faulty pressure control solenoid.
• Replace or reprogram the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular transmission fluid changes
• Routine inspection of transmission wiring
• Timely maintenance of the transmission system
Transmission Control Issue
• Avoid driving aggressively until the issue is fixed.
• Consult a professional mechanic for accurate diagnosis.
Check with your vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with transmission control issues in various models, often due to electrical problems.
Moderate – Address the issue soon to avoid further transmission damage.
Ignoring transmission issues can lead to unsafe driving conditions and 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 P27D7 code?
A: It's not recommended to drive for long periods with this code, as it can lead to transmission damage.
Q: How do I reset the P27D7 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
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