Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a part that helps control the pressure in the transmission, like a faucet controlling water flow. This code means that the car's computer thinks the faucet is letting too much pressure through.
The P2815 code indicates that the transmission control module has detected a high voltage condition in the pressure control solenoid G circuit.
The pressure control solenoid G is responsible for regulating hydraulic pressure in the transmission. A high voltage condition in its control circuit suggests an electrical issue, possibly due to a short circuit or a faulty solenoid.
• Harsh or erratic shifting
• Transmission slipping
• Illuminated check engine light
• Faulty pressure control solenoid G
• Wiring issues such as shorts or open circuits
• Faulty transmission control module (TCM)
Solenoid: An electromechanical device used to control fluid flow in the transmission.
Transmission Control Module (TCM): The computer that controls the transmission's operation.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the pressure control solenoid G for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty pressure control solenoid G.
• Reprogram or replace the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $500
Moderate
• Toyota Camry
• Honda Accord
• Ford Focus
• Regular transmission fluid changes
• Inspect and maintain wiring harnesses
• Avoid aggressive driving habits
Transmission Control Issue
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult with a professional mechanic for accurate diagnosis.
Check with your vehicle manufacturer to see if transmission components are covered under warranty.
This code has been associated with transmission issues in vehicles with electronic control systems since the introduction of OBD-II standards.
High – This issue can lead to severe transmission damage if not addressed promptly.
Driving with a malfunctioning transmission can be dangerous and may lead to further damage.
• Vehicle must be at operating temperature.
• Transmission fluid level should be checked and correct.
The pressure control solenoid G is located inside the transmission, typically accessible by removing the transmission pan.
Q: Can I drive with a P2815 code?
A: It's not recommended as it may cause further damage to the transmission.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to transmission failure and costly repairs.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.