P2791 Fault Code

Gate Select Direction Circuit Low

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2791 fault code indicates an issue with the Gate Select Direction Circuit, which is responsible for communicating the desired gear selection to the transmission control module. This circuit can suffer from electrical problems or faults in the transmission system itself.

What are the symptoms of the P2791 code?

Common symptoms associated with the P2791 code include:

• Inability to shift gears smoothly.
• Transmission may become stuck in a single gear (usually limp mode).
• Warning lights on the dashboard, particularly the check engine light.
• Unusual sounds or vibrations when attempting to change gears.

What causes the P2791 code?

This fault may be caused by:

• Faulty wiring or connectors in the gate select circuit.
• A malfunctioning gate select switch or sensor.
• Poor ground connections affecting the circuit's operation.
• Internal transmission failures that impact the gear selection process.

How to fix P2791?

To resolve the P2791 fault code, consider the following steps:

• Inspect all wiring and connectors related to the gate select circuit for damage or loose connections.
• Test the gate select switch to ensure it's functioning properly.
• Check for proper grounding in the circuit to eliminate electrical issues.
• If wiring and components are in good condition, inspect the transmission itself for internal faults.