how to fix the rear brake lights not working in Tesla Outback 5th Generation?

Subaru Outback 5th Generation (2015-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

569 words

Problem Statement

Learn how to diagnose and fix rear brake lights not working in Tesla Outback 5th Generation. 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 down before accessing any components that may be hot.

Symptoms

•Rear brake lights not illuminating when the brake pedal is pressed
•Dashboard warning light for the brake system illuminated
•Turn signal lights functioning normally
•Tail lights operational
•No blown fuses related to rear lights

Diagnostic Steps

1
Inspect the brake light bulbs for any signs of burn-out or damage.
2
Check the brake light fuse using the fuse box diagram to ensure it's intact.
3
Use a multimeter to test voltage at the brake light socket while pressing the brake pedal.
4
Inspect the brake light switch for proper operation and alignment.
5
Examine the wiring harness for any signs of wear, damage, or corrosion.

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

•Multimeter
•Screwdriver set
•Pliers
•Fuse puller
•Electrical tape

Parts Required

•Brake light bulbs
•Brake light fuse (if blown)
•Brake light switch (if defective)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the brake light bulbs for any signs of burn-out or damage.
2
Check the brake light fuse using the fuse box diagram to ensure it's intact.
3
Use a multimeter to test voltage at the brake light socket while pressing the brake pedal.
4
Inspect the brake light switch for proper operation and alignment.
5
Examine the wiring harness for any signs of wear, damage, or corrosion.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a flat surface and the ignition is off.
Disconnect the negative terminal of the battery to prevent electrical shock.

2. Replace Brake Light Bulbs

Sub-steps:
1. Remove the interior panel or access cover in the trunk area to reach the brake light assembly.
2. Twist or pull the bulb socket out of the assembly.
3. Remove the old bulb and replace it with a new bulb of the same type.
4. Reinsert the bulb socket back into the assembly and ensure it is secured.
5. Reattach the interior panel or access cover.

3. Replace Brake Light Fuse

Sub-steps:
1. Locate the fuse box according to the owner's manual.
2. Identify the brake light fuse using the diagram on the fuse box cover.
3. Pull out the old fuse using a fuse puller or pliers.
4. Insert a new fuse of the same amperage.
5. Recheck all connections and close the fuse box.

4. Adjust or Replace Brake Light Switch

Sub-steps:
1. Locate the brake light switch, usually mounted near the brake pedal.
2. Disconnect the wiring connector from the switch.
3. Inspect the switch for damage or misalignment; adjust if necessary.
4. If defective, remove the switch by unbolting it and replace it with a new one.
5. Reconnect the wiring and ensure it is securely fastened.

5. Repair Wiring Harness

Sub-steps:
1. Inspect the wiring harness connected to the brake lights for any visible damage.
2. Repair any damaged wires using electrical tape or by soldering new wire sections.
3. Ensure all connections are tight and free from corrosion.
4. Reassemble any components that were removed during inspection.