my Honda Accord 10th Generation (2018-2022) doesn’t shift into gear what could be wrong

Solution

1. Preparation

• Gather necessary tools and parts. Ensure the vehicle is on a level surface and the engine is off.
• Safety warning: Disconnect the battery before working on electrical systems.

2. Check and Replace Transmission Fluid

• Tools Required: Transmission funnel, catch pan, socket set.
• Remove the transmission drain plug and allow old fluid to drain into the catch pan.
• Replace the drain plug and torque to manufacturer specifications.
• Refill the transmission with the recommended fluid type using a funnel, checking the level with the dipstick.

3. Inspect and Adjust Transmission Linkage

• Tools Required: Wrench set, screwdriver.
• Locate the transmission linkage and visually inspect for wear or damage.
• If misaligned, adjust the linkage according to manufacturer specifications.
• Ensure all connections are secure.

4. Test and Replace Brake Switch

• Tools Required: Multimeter, socket set.
• Locate the brake switch and test it with a multimeter to ensure it is functioning correctly.
• If faulty, replace the brake switch with a new component, ensuring proper alignment and wiring.

5. Reprogram or Replace Transmission Control Module (if necessary)

• Tools Required: OBD-II scanner, computer with appropriate software.
• If TCM issues are detected, attempt to reprogram it using the OBD-II scanner.
• If reprogramming fails, remove the old TCM and install a new unit, ensuring all connections are secured.