how to fix P0700 code in Volkswagen Golf MK6 (2009-2014)

Solution

1. Preparation

• Gather tools and parts before starting.
• Ensure the vehicle is on a level surface and securely raised if needed.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Check and Replace Transmission Fluid

1. Remove the transmission fluid dipstick and check the fluid level.
2. If low, add the correct type of transmission fluid (check owner’s manual for specifications).
3. If the fluid is dirty or burnt, drain the old fluid:
   • Locate the transmission fluid drain plug.
   • Place a drain pan underneath and remove the drain plug.
   • Allow the fluid to fully drain.
4. Replace the drain plug and torque to manufacturer specifications.

3. Inspect and Repair Wiring/Connectors

1. Visually inspect the wiring harness and connectors leading to the TCM.
2. If any damage or corrosion is found, repair or replace the affected wiring and connectors.
3. Ensure all connections are secure.

4. Test and Replace Transmission Control Module (if necessary)

1. Reconnect the battery terminal.
2. Use a multimeter to test voltage at the TCM; refer to service manual for specific values.
3. If the TCM is not functioning correctly, remove it:
   • Disconnect the electrical connectors.
   • Unscrew the TCM from its mounting location.
4. Install the new or refurbished TCM:
   • Secure it in place and reconnect all electrical connectors.

5. Final Checks

1. Refill the transmission fluid to the proper level if needed.
2. Start the vehicle and let it reach operating temperature.
3. Check for leaks and ensure the transmission operates smoothly.