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 has detected a problem with the part of the transmission that helps choose gears. It's like if your remote control for a toy car wasn't working right and couldn't switch directions easily.
The P2790 code is triggered when the vehicle's powertrain control module (PCM) detects an issue with the gate select direction circuit, which is responsible for managing the direction in which the transmission selects gears.
The gate select direction circuit is part of the transmission system that controls the selection of gears. When the PCM identifies an abnormal signal or voltage from this circuit, it triggers the P2790 code. This issue can affect the transmission's ability to switch gears properly.
• Check Engine Light is on
• Difficulty in shifting gears
• Transmission stuck in one gear
• Faulty gate select actuator
• Wiring issues in the circuit
• Malfunctioning PCM
PCM: Powertrain Control Module
Actuator: A device that causes a machine or other device to operate
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections in the gate select circuit.
• Test the gate select actuator for proper operation.
• Repair or replace damaged wiring.
• Replace the gate select actuator if faulty.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$200 - $500
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regular maintenance of the transmission system.
• Ensure proper electrical connections.
• Avoid harsh driving conditions.
Transmission Issue
• Avoid driving the vehicle until the issue is resolved.
• Consult a professional mechanic for a thorough inspection.
Check with your vehicle manufacturer for warranty coverage on transmission components.
The P2790 code has been associated with transmission issues in vehicles with automatic transmissions, particularly those with electronic gear selection systems.
Moderate – It is advisable to address this issue soon to avoid further transmission damage.
Driving with a malfunctioning transmission can be dangerous and may lead to further vehicle damage.
• Vehicle at operating temperature
• Transmission in neutral or park
The gate select actuator is typically located on or near the transmission housing.
Q: Can I drive with a P2790 code?
A: It's not recommended to drive with this code, as it can lead to transmission problems and unsafe driving conditions.
Q: How can I reset the P2790 code?
A: You can reset the code with an OBD-II scanner, but it's important to fix the underlying issue first.
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