how to fix P0700 code on my Volkswagen Golf Seventh Generation (2013-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the vehicle to cool down if it has been running.

2. Check and Replace Transmission Fluid

• Sub-steps:
  • Locate the transmission dipstick (if equipped) and pull it out.
  • Wipe it clean, reinsert, and check the fluid level.
  • If low, add the appropriate transmission fluid per Volkswagen specifications.
  • If fluid is dirty or burnt, drain and replace it.
• Tools Required: Transmission fluid pump, funnel, socket set.
• Safety Warnings: Wear gloves and eye protection; be cautious of hot fluid.

3. Inspect and Repair Wiring/Connectors

• Sub-steps:
  • Visually inspect wiring harnesses leading to the TCM for wear or damage.
  • Clean any corroded connectors and ensure they are securely attached.
  • Repair or replace any damaged wiring as needed.
• Tools Required: Wire cutter/stripper, soldering iron (if necessary), electrical tape.

4. Test and Replace TCM (If Necessary)

• Sub-steps:
  • Use a multimeter to check the TCM for power and ground.
  • If the TCM is faulty, remove it using the appropriate socket set.
  • Replace with a new or refurbished TCM, making sure to reprogram it according to manufacturer specifications.
• Tools Required: Multimeter, socket set.
• Safety Warnings: Ensure the battery is disconnected before removing the TCM.

5. Inspect and Replace Transmission Range Sensor

• Sub-steps:
  • Locate the transmission range sensor and check its position and connections.
  • Use a multimeter to test the sensor for proper operation.
  • If faulty, remove and replace the sensor, ensuring it is correctly aligned.
• Tools Required: Multimeter, socket set.