how to fix my Toyota Camry XV70 (2018-2024) wipers that won't turn off

Toyota Camry XV80 (2025-Present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

557 words

Problem Statement

Learn how to diagnose and fix wipers that won't turn off in Toyota Camry XV70 (2018-2024). 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 shorts and electrical shocks.

Symptoms

•Wipers continue to operate even when the switch is turned off
•Wipers may operate at an incorrect speed or intermittently
•Possible warning lights on the dashboard related to electrical issues
•No response from wiper switch when attempting to turn off
•Unusual noises from the wiper motor

Diagnostic Steps

1
Inspect the wiper switch for physical damage or debris.
2
Scan the vehicle's onboard computer for any error codes related to the wiper system.
3
Check the wiper relay for proper operation using a multimeter.
4
Test the wiper motor for continuity and proper function.
5
Inspect wiring and connectors between the switch, relay, and motor for any signs of 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

•OBD-II scanner
•Multimeter
•Screwdriver set
•Socket set

Parts Required

•Wiper switch (if defective)
•Wiper relay (if defective)
•Wiper motor (if defective)

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Diagnostic Steps

1
Inspect the wiper switch for physical damage or debris.
2
Scan the vehicle's onboard computer for any error codes related to the wiper system.
3
Check the wiper relay for proper operation using a multimeter.
4
Test the wiper motor for continuity and proper function.
5
Inspect wiring and connectors between the switch, relay, and motor for any signs of damage or corrosion.

Solution

1. Preparation

Tools Required:
- OBD-II scanner
- Multimeter
- Screwdriver set
- Socket set
Ensure the vehicle is parked on a level surface and the ignition is off. Disconnect the negative battery terminal to prevent electrical shorts.

2. Check and Replace Wiper Switch

Remove the steering column cover using a screwdriver.
Disconnect the wiper switch connector.
Use a multimeter to test the switch for continuity in both the on and off positions.
If defective, replace the wiper switch with a new one.
- Torque values: Ensure all screws are tightened to manufacturer specifications.
Reconnect the switch and column cover.

3. Inspect and Replace Wiper Relay

Locate the wiper relay in the fuse box (consult the owner's manual for exact location).
Remove the relay from the socket and test it with a multimeter for continuity.
If the relay is faulty, replace it with a new relay of the same specifications.
Reinstall the relay and ensure it fits snugly in the socket.

4. Test Wiper Motor

Disconnect the wiper motor connector.
Use a multimeter to check for voltage at the motor terminals while activating the wipers.
If no voltage is detected when the wipers should be off, the issue may lie in the control circuit. If voltage is present, the motor may need replacement.
If replacing, remove the wiper arms and motor mounting bolts, then replace the motor.