P0910 Fault Code

Gate Select Actuator Circuit / Open [left / right motion]

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

The P0910 fault code indicates an issue with the gate select actuator circuit, which affects the mechanism responsible for the left and right motion of the gear selector. This actuator is crucial for smoothly transitioning between different gear selections in an automatic transmission. If the actuator circuit is open, it can prevent the vehicle from properly selecting gears, leading to drivability issues.

What are the symptoms of the P0910 code?

When a P0910 code is present, the driver may experience:

• Inability to shift gears smoothly
• Warning lights on the dashboard
• Delays in gear engagement
• Harsh shifting or slipping in the transmission
• Unusual noises when shifting
• Potential limp mode activation, restricting vehicle speed.

What causes the P0910 code?

Several factors can lead to a P0910 fault code, including:

• Damaged wiring or connectors in the actuator circuit
• A malfunctioning gate select actuator
• Poor electrical connections or corrosion
• Failed transmission control module (TCM)
• Issues with the transmission itself that affect actuator function.

How to fix P0910?

To resolve a P0910 fault code, consider the following steps:

• Inspect the wiring and connectors for damage or corrosion; repair or replace as necessary.
• Test the gate select actuator for proper operation and replace if faulty.
• Check for any fault codes in the transmission control module (TCM); clear codes and retest.
• If needed, reprogram or replace the TCM based on diagnostic findings.
• Conduct a thorough inspection of the transmission system to ensure no other mechanical issues are present.