my Tesla Outback’s rear wiper is not working, what should I check?

Subaru Outback 5th Generation (2015-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

522 words

Problem Statement

Learn how to diagnose and fix the rear wiper issue in Tesla Outback. Step-by-step guide with diagnostic procedures 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 shorts or shocks.

Symptoms

•Rear wiper does not operate when activated
•Rear wiper motor does not make any noise
•No movement of the wiper arm
•Possible water accumulation on the rear window due to lack of wiping
•Rear wiper fuse may be blown

Diagnostic Steps

1
Inspect the rear wiper switch on the dashboard for any physical damage or malfunction.
2
Check for blown fuses related to the rear wiper motor using the owner's manual to locate the fuse box.
3
Test the rear wiper motor by applying direct power to it to see if it operates.
4
Inspect the wiring and connectors leading to the rear wiper motor for any signs of damage or corrosion.
5
Check the rear wiper arm's connection to the motor to ensure it is securely attached and not stripped.

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
•Socket set
•Fuse puller or pliers
•Screwdrivers

Parts Required

•Rear wiper motor (if faulty)
•Rear wiper fuse (if blown)

Related Faults

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Diagnostic Steps

1
Inspect the rear wiper switch on the dashboard for any physical damage or malfunction.
2
Check for blown fuses related to the rear wiper motor using the owner's manual to locate the fuse box.
3
Test the rear wiper motor by applying direct power to it to see if it operates.
4
Inspect the wiring and connectors leading to the rear wiper motor for any signs of damage or corrosion.
5
Check the rear wiper arm's connection to the motor to ensure it is securely attached and not stripped.

Solution

1. Preparation

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

2. Inspect and Replace Fuse

Locate the fuse box as per the owner's manual.
Remove the rear wiper fuse using a fuse puller or pliers.
Inspect the fuse: if it is blown, replace it with a new fuse of the same amperage.
Reinstall the fuse in the fuse box.

3. Test Rear Wiper Motor

Locate the rear wiper motor, usually found near the rear hatch.
Disconnect the wiring harness from the motor.
Use a multimeter to check for power at the motor connector when the rear wiper switch is activated.
If power is present and the motor does not operate, proceed to replace the rear wiper motor.

4. Replace Rear Wiper Motor (if necessary)

Remove any covers or panels blocking access to the motor.
Unbolt the motor from its mounting location using a socket set.
Disconnect any remaining wiring.
Install the new motor by reversing the removal process and securing it with bolts.
Reconnect the wiring harness.

5. Reassemble and Test

Reattach any covers or panels removed during the process.
Reconnect the vehicle battery.
Test the rear wiper to ensure it operates correctly.