how to fix the exterior lights not working on my Volkswagen Golf Seventh Generation (2013-2020)

Volkswagen Golf Eighth Generation (2020-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

4 min read

611 words

Problem Statement

Learn how to diagnose and fix exterior lights not working on Volkswagen Golf 7 (2013-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shock.
•Allow the vehicle to cool before accessing any components.

Symptoms

•All exterior lights are non-operational
•Dashboard warning light for lights is illuminated
•Flickering or dim lighting when the switch is activated
•Inability to activate high beams or low beams
•Turn signal clicking rapidly or not illuminating at all

Diagnostic Steps

1
Check the vehicle's fuse box for blown fuses related to exterior lighting.
2
Inspect the light bulbs for any signs of damage or burnt-out filaments.
3
Use an OBD-II scanner to check for any related trouble codes.
4
Verify the operation of the light switch by testing it with a multimeter.
5
Inspect the wiring harness for any signs of damage, corrosion, or loose connections.
6
Test the relay for the lighting system to ensure it is functioning properly.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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
•Fuse puller
•Socket set
•Screwdriver set

Parts Required

•Replacement fuses
•Replacement bulbs
•Light switch (if needed)
•Electrical connectors (if needed)

Related Faults

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Diagnostic Steps

1
Check the vehicle's fuse box for blown fuses related to exterior lighting.
2
Inspect the light bulbs for any signs of damage or burnt-out filaments.
3
Use an OBD-II scanner to check for any related trouble codes.
4
Verify the operation of the light switch by testing it with a multimeter.
5
Inspect the wiring harness for any signs of damage, corrosion, or loose connections.
6
Test the relay for the lighting system to ensure it is functioning properly.

Solution

1. Preparation

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

2. Check and Replace Fuses

Locate the fuse box, usually found under the dashboard or in the engine compartment.
Remove the cover and identify the fuse related to the exterior lights (refer to the fuse diagram).
Use a fuse puller or needle-nose pliers to remove the fuse.
Inspect the fuse; if the metal strip is broken, replace it with a new fuse of the same amperage.

3. Inspect and Replace Bulbs

Access the exterior light assemblies by removing any necessary panels or covers.
Twist or pull the bulb socket to remove it from the housing.
Inspect the bulb for damage; replace with a new bulb if necessary (ensure it matches the specifications).
Reinsert the bulb socket and test the lights.

4. Test and Replace the Light Switch

Reconnect the battery and turn the ignition to the "On" position.
Test the light switch operation with a multimeter by checking for continuity between terminals when activated.
If faulty, remove the switch from the dashboard (consult vehicle manual for removal process).
Install a new switch and reconnect the electrical connectors.

5. Check and Repair Wiring

Visually inspect the wiring harness for any frayed or damaged wires.
Use a multimeter to test for continuity along the wires.
If damage is found, repair the wiring using wire connectors or electrical tape as needed.

6. Test the Relay

Locate the relay for the lighting system (found in the fuse box).
Remove the relay and test it with a multimeter to ensure it is functioning.
Replace the relay if it is defective.