how to fix a P0700 transmission code on Volkswagen Golf MK6 (2009-2014)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle battery to prevent electrical shorts.
• Allow the vehicle to cool down, especially if it has been driven recently.

2. Check and Replace Transmission Fluid

• Tools Required: Socket set, torque wrench, transmission fluid pump, drain pan.
• Sub-steps:
  1. Locate the transmission fluid drain plug and place a drain pan underneath.
  2. Remove the drain plug and let the fluid fully drain out.
  3. Inspect the fluid for metal shavings or burnt smell; replace if necessary.
  4. Reinstall the drain plug and torque to manufacturer specifications.
  5. Use a transmission fluid pump to refill the transmission with the correct type and amount of fluid (consult the owner’s manual for specifications).

3. Inspect and Repair Wiring and Connectors

• Tools Required: Multimeter, wire strippers, electrical tape.
• Sub-steps:
  1. Visually inspect all wiring and connectors leading to the TCM and transmission for fraying or corrosion.
  2. Use a multimeter to test for continuity and proper voltage.
  3. Repair or replace damaged wiring and connectors as needed.
  4. Ensure all connections are secure and properly insulated.

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

• Tools Required: OBD-II scanner, socket set.
• Sub-steps:
  1. If previous steps do not resolve the issue, remove the TCM (usually located near the transmission).
  2. Inspect for physical damage or corrosion.
  3. If necessary, replace with a new or remanufactured TCM.
  4. Reinstall the TCM and secure it properly.

5. Clear Codes and Test Drive

• Tools Required: OBD-II scanner.
• Sub-steps:
  1. Reconnect the battery.
  2. Use the OBD-II scanner to clear all diagnostic trouble codes.
  3. Test drive the vehicle to ensure proper shifting and functionality.
  4. Monitor for any reoccurrence of the P0700 code.