how to fix the rear wiper not working in Toyota Highlander Third Generation (2014-2019)

Toyota Highlander Third Generation (2014-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

550 words

Problem Statement

Learn how to diagnose and fix the rear wiper not working in Toyota Highlander (2014-2019). Step-by-step guide with symptoms, diagnostic steps, 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 components to avoid shock or short circuits.

Symptoms

•Rear wiper does not operate when activated
•Rear wiper does not respond to intermittent mode
•No sound from the wiper motor when switch is engaged
•Rear wiper fluid does not spray when activated
•Check for any blown fuses related to the rear wiper system

Diagnostic Steps

1
Inspect the rear wiper fuse in the fuse box for continuity and replace if blown.
2
Use an OBD-II scanner to check for any related trouble codes that may indicate electrical issues.
3
Test the wiper switch by checking for voltage output when the switch is activated.
4
Verify the rear wiper motor by applying direct battery voltage to the motor terminals.
5
Check for any broken or damaged wiring in the wiper circuit.
6
Inspect the rear wiper linkage for any mechanical binding or damage.

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
•Socket set
•Electrical tape
•Fuse puller

Parts Required

•Rear wiper motor (if needed)
•Replacement fuse (if blown)

Related Faults

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Diagnostic Steps

1
Inspect the rear wiper fuse in the fuse box for continuity and replace if blown.
2
Use an OBD-II scanner to check for any related trouble codes that may indicate electrical issues.
3
Test the wiper switch by checking for voltage output when the switch is activated.
4
Verify the rear wiper motor by applying direct battery voltage to the motor terminals.
5
Check for any broken or damaged wiring in the wiper circuit.
6
Inspect the rear wiper linkage for any mechanical binding or damage.

Solution

1. Preparation

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

2. Replace the Fuse

Locate the fuse box, typically found under the dashboard or in the engine compartment.
Identify the rear wiper fuse using the diagram on the fuse box cover.
Remove the blown fuse using a fuse puller or pliers.
Replace with a new fuse of the same amperage rating.

3. Test and Replace the Wiper Motor

Reconnect the battery and turn on the ignition.
If the wiper still does not operate, proceed to test the motor directly.
Remove the wiper arm by loosening the nut with a socket set and lifting it off the motor shaft.
Disconnect the electrical connector from the wiper motor.
Using a multimeter, check for voltage at the motor connector while the switch is activated.
If no voltage is present, the issue may be with the wiring or switch.
If voltage is present but the motor does not operate, replace the wiper motor.
- To replace, unbolt the motor from the mounting bracket and install the new motor in reverse order.

4. Fix Wiring Issues (if applicable)

If there are visible damages to the wiring, use electrical tape to insulate any exposed wires or replace damaged sections as necessary.
Ensure all connectors are clean and securely attached.