my Toyota Corolla E140 (2006-2013) won’t shift into gear what's going on

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a level surface and secure it with wheel chocks.
• Disconnect the battery to avoid electrical shorts.

2. Check Transmission Fluid

• Tools Required: Transmission dipstick (if applicable), funnel, clean rags.
• Remove the transmission dipstick and wipe it clean.
• Reinsert the dipstick and remove it again to check fluid level; add fluid if low.
• If fluid is dark or smells burnt, a fluid change is necessary.

3. Inspect and Replace Transmission Fluid

• Tools Required: Socket set, drain pan, transmission fluid pump, new transmission fluid (specify type per manufacturer).
• Drain the old transmission fluid into a pan.
• Remove the transmission pan (if applicable) and replace the filter.
• Reinstall the pan and refill with new transmission fluid to the proper level.

4. Repair or Replace Linkage/Cables

• Tools Required: Socket set, pliers, replacement linkage or cables.
• Locate the shift linkage and inspect for damage or disconnection.
• If damaged, remove the old linkage/cables and install new ones, ensuring proper alignment.

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

• Tools Required: Socket set, OBD-II scanner.
• If error codes indicate a problem with the transmission control module, remove the module from its housing.
• Replace it with a new module and reconnect all wiring harnesses.
• Clear any stored codes using the OBD-II scanner.