how to fix a Honda CR-V Sixth Generation (2023-present) transmission that won't shift

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface, and the engine is turned off.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replace Transmission Fluid

• Tools Required: Funnel, transmission fluid (Honda ATF DW-1), fluid pump.
• Remove the transmission dipstick and check the fluid level. If low, add fluid until it reaches the proper level.
• If the fluid is discolored or burnt, proceed to replace the fluid:
  1. Place a drain pan under the transmission pan.
  2. Remove the transmission pan bolts using a socket set, and carefully lower the pan.
  3. Allow old fluid to drain completely.
  4. Replace the transmission filter if applicable.
  5. Clean the transmission pan and replace the gasket.
  6. Reattach the pan and torque the bolts to the manufacturer’s specification.
  7. Fill the transmission with new Honda ATF DW-1 fluid using a funnel.

3. Inspect and Repair Transmission Control Module (TCM)

• Tools Required: OBD-II scanner, basic hand tools.
• After confirming the fluid is at the correct level and condition, reconnect the battery.
• Use an OBD-II scanner to read any error codes. If TCM-related codes are present:
  1. Inspect the TCM connections for any signs of damage or corrosion.
  2. If necessary, replace the TCM following specific manufacturer instructions.
  3. Reprogram the new TCM if required.

4. Test Transmission Solenoids

• Tools Required: Multimeter, basic hand tools.
• Remove the necessary components to access the transmission solenoids.
• Disconnect the wiring harness from each solenoid.
• Use a multimeter to check the resistance of each solenoid. Replace any solenoid that is outside the specified resistance range.
• Reassemble all components securely.