how to fix P0700 transmission trouble code in my Volkswagen Golf Seventh Generation (2013-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface with the parking brake engaged.
• Disconnect the battery to prevent electrical shorts.

2. Check and Replace Transmission Fluid

• Remove the transmission dipstick and check the fluid level.
• If fluid is low, add the correct type of transmission fluid as specified in the owner's manual.
• If fluid is burnt or contaminated, drain the transmission fluid:
  • Tools Required: Socket set, drain pan
  • Sub-steps:
    1. Position the drain pan under the transmission pan.
    2. Remove the transmission pan bolts and carefully lower the pan.
    3. Drain the fluid completely and replace the filter if applicable.
    4. Reinstall the pan and torque to manufacturer specifications.

3. Inspect and Repair Wiring and Connectors

• Visually inspect wiring harnesses and connectors for damage:
  • Tools Required: Wire brush, electrical contact cleaner
  • Sub-steps:
    1. Disconnect the connectors from the transmission control module.
    2. Clean the connectors with electrical contact cleaner.
    3. Repair or replace any damaged wires or connectors.

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

• If previous steps do not resolve the issue, the transmission control module may need replacement.
  • Tools Required: Socket set, torque wrench
  • Sub-steps:
    1. Disconnect the battery again.
    2. Remove the screws/bolts securing the transmission control module.
    3. Carefully disconnect any wiring harnesses from the module.
    4. Install the new transmission control module by reversing the removal steps.
    5. Torque the mounting screws to manufacturer specifications.