how to fix P0701 code in Volkswagen Golf Seventh Generation (2013-2020)

Learn how to diagnose and fix P0701 transmission control issue in Volkswagen Golf (2013-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

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

2. Check and Replace Transmission Fluid

• Tools Required: Socket set, fluid pump, transmission fluid (VW-approved).
• Remove the transmission fluid dipstick or fill plug.
• Check the fluid level; if low, add the appropriate VW-approved transmission fluid until it reaches the correct level.
• If the fluid is dirty or burnt, drain the fluid completely using a fluid pump and replace it with new fluid.
• Reinstall the dipstick or fill plug.

3. Inspect and Replace Transmission Range Sensor

• Tools Required: Socket set, torque wrench.
• Locate the transmission range sensor on the transmission.
• Disconnect the electrical connector from the sensor.
• Remove the mounting bolts and carefully remove the sensor.
• Install the new sensor and torque the bolts to manufacturer's specifications.
• Reconnect the electrical connector.

4. Check Wiring and Connectors

• Tools Required: Multimeter.
• Inspect the wiring harness for any frays, breaks, or corrosion.
• Use a multimeter to test continuity between the TCM and the transmission components.
• Repair or replace any damaged wires or connectors.

5. Reconnect Battery and Clear Codes

• Reconnect the battery terminals.
• Use the OBD-II scanner to clear the P0701 code and any other stored codes.

Note: After completing repairs, a test drive may be necessary to verify that the issue is resolved.