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 the car's computer thinks there's a problem with a part that helps control the pressure in the transmission. It's like if you had a toy with a button that doesn't work because the wire inside is disconnected.
The P08C8 code indicates an issue with the electrical circuit for the pressure control solenoid labeled 'M'. This solenoid is responsible for regulating hydraulic pressure in the transmission.
The pressure control solenoid M is part of the transmission system that helps manage the hydraulic pressure needed for gear shifting. An 'open' circuit means there is a break or disconnection in the electrical pathway, preventing the solenoid from receiving the necessary signals to function properly.
• Transmission slipping
• Harsh or erratic shifting
• Illuminated check engine light
• Poor fuel economy
• Faulty pressure control solenoid M
• Open or shorted wiring in the solenoid circuit
• Poor electrical connection at the solenoid
• Faulty transmission control module (TCM)
Solenoid: An electromechanical device that converts electrical energy into mechanical movement.
Transmission Control Module (TCM): A computer that controls the operation of the transmission.
• Scan for codes and freeze frame data
• Visually inspect wiring and connectors
• Test the solenoid's electrical resistance
• Check for continuity in the circuit
• 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
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular transmission fluid changes
• Routine inspections of wiring and connectors
• Avoiding harsh driving conditions
Transmission Control Issue
• Avoid driving the vehicle until repaired to prevent further damage
• Consult a professional mechanic for diagnosis and repair
Check if the vehicle's powertrain warranty covers transmission components.
This code is relatively common in vehicles with high mileage or those that have been subjected to heavy towing or harsh driving conditions.
Moderate – Addressing this issue soon can prevent further transmission damage.
Driving with a faulty transmission can lead to unsafe driving conditions. Address the issue promptly.
• Engine running
• Transmission at operating temperature
Located within the transmission, often accessible by removing the transmission pan.
Q: Can I drive with a P08C8 code?
A: It's not recommended to drive with this code as it can lead to further transmission damage.
Q: How is the pressure control solenoid tested?
A: A multimeter can be used to test the solenoid's resistance and check for circuit continuity.
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