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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the negative terminal of the battery to prevent electrical shorts.

2. Check Transmission Fluid

• Tools Required: Transmission fluid dipstick, funnel
• Remove the transmission dipstick and check the fluid level.
• If low, add the recommended fluid type (consult the owner's manual for specifications).
• Inspect fluid condition; if dirty or burnt, schedule a transmission fluid change.

3. Inspect Wiring and Connectors

• Tools Required: Multimeter, wire brush
• Visually inspect the wiring harness and connectors for wear or damage.
• Clean any corrosion found on connectors using a wire brush.
• Use a multimeter to test for continuity in the wiring leading to the TCM.

4. Test the TCM

• Tools Required: OBD-II scanner, multimeter
• Connect the OBD-II scanner to the vehicle and clear the P0700 code.
• Start the vehicle and monitor for the reappearance of the code.
• If the code returns, use a multimeter to check the TCM input and output signals against manufacturer specifications.

5. Replace Faulty Components

• If any solenoids or sensors are found faulty in previous steps, replace the respective components.
• Tools Required: Socket set, torque wrench
• Follow manufacturer guidelines for torque specifications during reassembly.

6. Reassemble and Test

• Reconnect all electrical connections and ensure everything is properly secured.
• Reconnect the battery terminal.
• Perform a test drive to ensure that the transmission operates smoothly and that the check engine light does not reappear.