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 transmission pressure is not working right. Imagine it like a faucet that can't open or close properly to let water flow. This can make your car shift gears roughly.
The P27C7 code is triggered when the transmission control module detects a low electrical signal in the pressure control solenoid P circuit.
The pressure control solenoid P is responsible for regulating hydraulic pressure in the transmission. A low circuit condition indicates that the solenoid is not receiving enough voltage or current, which can affect transmission performance.
• Harsh or erratic shifting
• Transmission slipping
• Check engine light on
• Faulty pressure control solenoid P
• Wiring issues such as open or short circuits
• Faulty transmission control module (TCM)
Solenoid: An electromechanical device that controls fluid flow.
Transmission Control Module (TCM): A computer that controls the transmission's functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• 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 transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular transmission maintenance
• Ensure proper fluid levels
• Inspect wiring periodically
Transmission Issue
• Avoid driving aggressively until the issue is resolved.
• Seek professional diagnosis if unsure about repairs.
Check with your vehicle's manufacturer for warranty coverage on transmission components.
This code has been associated with transmission issues in vehicles with electronic control systems.
Moderate – Addressing this issue promptly can prevent further transmission damage.
Driving with a faulty transmission can lead to unsafe driving conditions. Address the issue as soon as possible.
• Vehicle at operating temperature
• Transmission in drive mode
The pressure control solenoid is located inside the transmission, often accessible by removing the transmission pan.
Q: Can I drive with a P27C7 code?
A: It's not recommended to drive for long periods with this code, as it can cause further transmission damage.
Q: How do I reset the check engine light after repairs?
A: Use an OBD-II scanner to clear the code after ensuring the issue is fixed.
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