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

Solution

1. Preparation

• Gather necessary tools and parts before starting.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the vehicle is on a level surface and securely supported with jack stands.

2. Fluid Check and Replacement

• Fluid Inspection:
  • Remove the transmission dipstick and check fluid level; top off if low.
  • If the fluid is dirty or smells burnt, proceed with a fluid change.
• Fluid Replacement:
  • Drain the old transmission fluid using a socket set to remove the drain plug.
  • Replace the drain plug once the fluid has drained completely.
  • Refill with manufacturer-recommended transmission fluid through the dipstick tube.

3. Wiring and Connector Inspection

• Remove any panels or covers to access the wiring harness and connectors to the TCM.
• Inspect connectors for corrosion, bent pins, or broken wires.
• Repair or replace damaged connectors as necessary.

4. Transmission Control Module (TCM) Testing

• Remove the TCM from its mounting location.
• Using a multimeter, test the TCM for continuity and proper voltage according to the manufacturer’s specifications.
• Replace the TCM if it fails the diagnostic tests.

5. Reassembly

• Reinstall the TCM and any panels or covers removed during the inspection.
• Reconnect the negative battery terminal.

Tools Required:

• OBD-II scanner
• Socket set
• Multimeter
• Torque wrench
• Transmission fluid pump (if needed)

Parts Required:

• Transmission fluid (manufacturer specified)
• Transmission control module (if faulty)
• Replacement connectors (if damaged)

Estimated Repair Time: 2-4 hours

Safety Warnings:

• Disconnect the battery before working on electrical systems.
• Allow the engine to cool before working on the transmission components.