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

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the battery negative terminal to ensure safety.
• Raise the vehicle securely on jack stands.

2. Inspect Transmission Fluid

• Step 1: Locate the transmission dipstick (if applicable) and remove it.
• Step 2: Wipe the dipstick clean and reinsert it to check the fluid level.
• Step 3: If the fluid is low, add the appropriate Volkswagen transmission fluid (e.g., VW G052162A2).
• Step 4: If the fluid is discolored (brown or has a burnt smell), a transmission fluid change is recommended.

3. Check Wiring and Connectors

• Step 1: Visually inspect all wiring and connectors to the TCM for any signs of wear or corrosion.
• Step 2: Use a multimeter to check for continuity and voltage at the TCM connectors.
• Step 3: Repair or replace any damaged wiring or connectors as necessary.

4. Test Transmission Control Module

• Step 1: Reconnect the battery.
• Step 2: Use a diagnostic scanner to check if the TCM is communicating correctly.
• Step 3: If no communication is detected, consider replacing the TCM.
• Step 4: If communication is present, clear the codes and conduct a test drive to see if the P0700 code returns.

5. Replace Transmission Control Module (if necessary)

• Step 1: Remove the TCM by unbolting it from its mounting location.
• Step 2: Disconnect the wiring harness from the TCM.
• Step 3: Install the new TCM by reversing the removal process.
• Step 4: Reconnect the battery and perform a TCM adaptation if required by the vehicle’s service manual.