how to fix P0700 code in Volkswagen Tiguan First Generation (2007-2018)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle's battery to prevent electrical shock.
• Allow the engine to cool down before working on the transmission.

2. Fluid Change

• Tools Required: Socket set, transmission fluid pump, fluid catch pan.
• Sub-steps:
  1. Raise the vehicle using a jack and secure it with jack stands.
  2. Place the fluid catch pan under the transmission oil pan.
  3. Remove the transmission oil pan bolts and carefully detach the pan.
  4. Drain the old transmission fluid and inspect the pan for metal shavings or debris.
  5. Replace the transmission filter if applicable.
  6. Reinstall the oil pan with new gasket and torque to manufacturer specifications (typically around 10 Nm).
  7. Refill the transmission with the recommended fluid type (e.g., VW G 052 162 A2).

3. TCM Inspection

• Tools Required: Multimeter, screwdrivers.
• Sub-steps:
  1. Locate the transmission control module (usually found near the transmission).
  2. Disconnect the electrical connector from the TCM.
  3. Use a multimeter to check for proper voltage at the TCM connector.
  4. If voltage is not present, trace the circuit back to the battery and check for breaks or shorts.
  5. If the TCM is faulty, replace it with a new unit, ensuring to program it to the vehicle if necessary.

4. Clear Codes and Test

• Tools Required: OBD-II scanner.
• Sub-steps:
  1. Reconnect the vehicle battery after all repairs are complete.
  2. Use the OBD-II scanner to clear the P0700 code and any other related codes.
  3. Perform a road test to ensure proper operation and monitor for the reappearance of the check engine light.