how to troubleshoot Tesla Outback 5th Generation (2015-2019) headlight issues

Subaru Outback 5th Generation (2015-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

529 words

Problem Statement

Learn how to troubleshoot and fix headlight issues in Tesla Outback 5th Generation (2015-2019). Step-by-step guide with diagnostic and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent short circuits.
•Allow the headlights to cool down before handling to avoid burns.

Symptoms

•Headlights not turning on
•One or both headlights dim or flickering
•Headlight warning light illuminated on the dashboard
•Inconsistent beam pattern or alignment
•Bulbs frequently burning out

Diagnostic Steps

1
Check the headlight bulbs for signs of damage or burn-out.
2
Inspect the headlight fuses in the fuse box for any blown fuses.
3
Use an OBD-II scanner to check for any error codes related to lighting systems.
4
Examine the headlight wiring harness for corrosion, damage, or loose connections.
5
Test the headlight relay for proper operation.
6
Measure voltage at the headlight connector using a multimeter.

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 or needle-nose pliers
•Soldering iron
•Heat-shrink tubing

Parts Required

•Replacement headlight bulbs
•Fuses
•Relay
•Wiring harness

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Diagnostic Steps

1
Check the headlight bulbs for signs of damage or burn-out.
2
Inspect the headlight fuses in the fuse box for any blown fuses.
3
Use an OBD-II scanner to check for any error codes related to lighting systems.
4
Examine the headlight wiring harness for corrosion, damage, or loose connections.
5
Test the headlight relay for proper operation.
6
Measure voltage at the headlight connector using a multimeter.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the vehicle battery to ensure safety while working on electrical components.

2. Replace Headlight Bulbs

Sub-steps:
1. Open the hood and locate the headlight assembly.
2. Remove the headlight assembly cover (if applicable).
3. Disconnect the bulb socket from the headlight assembly.
4. Remove the old bulb by turning it counterclockwise.
5. Insert the new bulb, ensuring it is securely seated, and reconnect the bulb socket.
6. Replace the headlight assembly cover.
Tools Required: No special tools required, just hands.

3. Replace Blown Fuses

Sub-steps:
1. Locate the fuse box and identify the headlight fuse.
2. Remove the blown fuse using a fuse puller or needle-nose pliers.
3. Insert a new fuse of the same amperage rating.
Tools Required: Fuse puller or needle-nose pliers.

4. Repair Wiring Harness

Sub-steps:
1. Inspect the wiring harness connected to the headlight for any visible damage.
2. If corrosion is found, clean the connectors using contact cleaner and a small brush.
3. Repair any damaged wires using solder and heat-shrink tubing or replace the entire harness if necessary.
Tools Required: Soldering iron, heat-shrink tubing.

5. Replace Headlight Relay

Sub-steps:
1. Locate the headlight relay in the fuse box.
2. Remove the old relay by pulling it straight out.
3. Insert the new relay into the socket.
Tools Required: No special tools required, just hands.