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Home/Cars/Volkswagen/Golf/MK7 (2015-2019)/Volkswagen Golf MK6 (2009-2014) power locks not working how to troubleshoot

Volkswagen Golf MK6 (2009-2014) power locks not working how to troubleshoot

Volkswagen Golf MK7 (2015-2019)

Severity: mediumDifficulty: medium2-4 hours
4 min read
620 words

Problem Statement

Learn how to troubleshoot and fix power locks not working in Volkswagen Golf MK6 (2009-2014). Step-by-step guide with diagnostic and repair instructions.

Component
Electrical
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect battery before working on electrical systems to avoid shock or short circuits.
  • ⚠Allow any components to cool if the vehicle has been recently operated.

Symptoms

  • •Power lock switch does not respond
  • •No clicking sound from the locks when the switch is activated
  • •Key fob fails to lock or unlock doors
  • •Manual locking/unlocking works but is inconvenient
  • •Warning lights may be illuminated on the dashboard

Diagnostic Steps

  1. 1Inspect the power lock switch for physical damage or debris.
  2. 2Check the vehicle’s fuse box for blown fuses related to the central locking system.
  3. 3Use an OBD-II scanner to check for any error codes related to the central locking system.
  4. 4Test the key fob battery and functionality to ensure it is transmitting signals.
  5. 5Inspect the door wiring harness for any signs of wear, fraying, or disconnection.
  6. 6Test the door lock actuators for proper function; listen for any sounds when attempting to lock/unlock.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the vehicle battery to prevent electrical shock.
  • Ensure the vehicle is parked on a flat surface.

2. Check and Replace Fuses

  • Locate the fuse box; typically under the dashboard or in the engine compartment.
  • Identify the fuse related to the central locking system (refer to the owner’s manual).
  • Remove the fuse using a fuse puller or pliers and inspect it for continuity.
    • If blown, replace it with a new fuse of the same amperage.

3. Inspect and Replace the Power Lock Switch

  • Remove the panel covering the power lock switch using a trim removal tool.
  • Disconnect the electrical connector from the switch.
  • Test the switch with a multimeter for continuity when pressed.
    • If defective, replace it with a new switch.
  • Reinstall the switch and panel.

4. Check and Replace the Key Fob Battery

  • Open the key fob using a small flathead screwdriver.
  • Replace the battery (usually a CR2032) ensuring correct polarity.
  • Reassemble the key fob and test the locking function.

5. Inspect Door Wiring Harness

  • Remove the inner door panel using a socket set and trim removal tool.
  • Inspect the wiring harness for any damage, fraying, or loose connections.
  • Repair or replace any damaged wiring as necessary.

6. Test and Replace Door Lock Actuators

  • With the door panel removed, access the door lock actuator.
  • Test the actuator with a direct battery connection to determine if it operates.
    • If the actuator does not function, replace it with a new one.
  • Reassemble the door panel after replacing the actuator.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Multimeter
  • Trim removal tool
  • Socket set
  • Pliers
  • Fuse puller

Parts Required

  • Replacement fuse (if blown)
  • New power lock switch (if defective)
  • New key fob battery (if needed)
  • New door lock actuator (if defective)

Additional Information

Component

Electrical

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

6 items

Parts

4 items

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