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

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, multimeter, transmission fluid, torque wrench, funnel, rags.
• Ensure vehicle is on a level surface and securely lifted if needed.
• Disconnect the negative battery terminal to avoid electrical shorts.

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission fluid dipstick or filler plug.
  2. Remove the dipstick or filler plug and check fluid level and condition.
  3. If fluid is low, add the recommended transmission fluid (consult owner's manual) until it reaches the proper level.
  4. If fluid is burnt or contaminated, drain the old transmission fluid using a fluid pump or drain plug.
  5. Replace the fluid with fresh transmission fluid, ensuring to use the correct type specified by the manufacturer.

3. Check and Repair Wiring/Connectors

• Sub-steps:
  1. Inspect the wiring harness connected to the TCM for fraying or breaks.
  2. Clean any corrosion found on connectors using electrical contact cleaner.
  3. Repair or replace damaged wiring as necessary, ensuring all connections are secure.

4. Replace the Transmission Control Module (If Necessary)

• Sub-steps:
  1. Remove the TCM from its mounting location, typically located near the transmission.
  2. Disconnect the electrical connectors from the TCM by pressing down on the release tabs.
  3. Install the new TCM by reversing the removal process, ensuring all connectors are securely attached.
  4. Torque the TCM mounting bolts to the specified value mentioned in the service manual.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0700 code and any other related codes.