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

Solution

1. Preparation

• Gather tools and parts needed.
• Ensure the vehicle is on a level surface and the engine is cool.
• Disconnect the negative battery terminal to avoid electrical shorts.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Remove the transmission fluid fill plug.
  2. Use a transmission fluid dipstick to check the fluid level.
  3. If low, add the appropriate VW transmission fluid (typically VW G 052 162 A2).
  4. If the fluid is dirty or burnt, proceed to drain and replace the fluid.
• Tools Required:
  • Socket set
  • Transmission fluid pump

3. Inspect and Repair Wiring and Connections

• Sub-steps:
  1. Remove the vehicle's undercarriage cover if necessary to access the TCM.
  2. Disconnect the TCM connector and visually inspect for corrosion or damage.
  3. Repair any damaged wires or connectors.
  4. Reconnect the TCM connector securely.
• Tools Required:
  • Multimeter
  • Wire strippers/crimpers

4. Replace Transmission Control Module (if necessary)

• Sub-steps:
  1. If diagnostics indicate a faulty TCM, remove the old TCM by unscrewing the mounting bolts.
  2. Install the new TCM and secure it with bolts.
  3. Reconnect the TCM harness and any other disconnected components.
• Tools Required:
  • Socket set

5. Refill Transmission Fluid (if drained)

• Sub-steps:
  1. Use a transmission fluid pump to refill with the correct VW transmission fluid.
  2. Check the fluid level again using the dipstick.
  3. Replace the fill plug securely.
• Tools Required:
  • Transmission fluid pump