how to troubleshoot the rear window wiper not working in my Honda CR-V Fifth Generation (2017-2022)

Honda CR-V Fifth Generation (2017-2022)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

552 words

Problem Statement

Learn how to troubleshoot and fix the rear window wiper not working on Honda CR-V 2017-2022. 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 short circuits.

Symptoms

•Rear wiper does not operate when activated
•Wiper blade remains stationary
•No sound or movement from the rear wiper motor
•Rear wiper fluid does not spray
•Front wipers functioning normally

Diagnostic Steps

1
Check Wiper Control Switch: Verify that the rear wiper control switch is functioning correctly by testing all positions and ensuring it is not stuck.
2
Inspect Fuse: Locate and check the rear wiper fuse in the fuse box for continuity using a multimeter. Replace if blown.
3
Test Wiper Motor: Apply direct power to the rear wiper motor using jumper wires to see if it operates independently.
4
Examine Wiring and Connectors: Inspect the wiring harness and connectors leading to the rear wiper motor for any signs of damage or corrosion.
5
Check Rear Wiper Relay: Listen for a clicking sound from the rear wiper relay when the switch is activated, and replace if defective.

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

•Socket set
•Multimeter
•Jumper wires
•Flathead screwdriver

Parts Required

•Rear wiper motor (if defective)
•Rear wiper fuse (if blown)
•Rear wiper relay (if defective)

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Diagnostic Steps

1
Check Wiper Control Switch: Verify that the rear wiper control switch is functioning correctly by testing all positions and ensuring it is not stuck.
2
Inspect Fuse: Locate and check the rear wiper fuse in the fuse box for continuity using a multimeter. Replace if blown.
3
Test Wiper Motor: Apply direct power to the rear wiper motor using jumper wires to see if it operates independently.
4
Examine Wiring and Connectors: Inspect the wiring harness and connectors leading to the rear wiper motor for any signs of damage or corrosion.
5
Check Rear Wiper Relay: Listen for a clicking sound from the rear wiper relay when the switch is activated, and replace if defective.

Solution

1. Preparation

Gather tools: socket set, multimeter, jumper wires, and a flathead screwdriver.
Ensure the vehicle is parked on a level surface and the ignition is off.

2. Check and Replace Fuse

Locate the fuse box under the dashboard or in the engine compartment.
Use a fuse puller or pliers to remove the rear wiper fuse (refer to the owner's manual for the exact location).
Inspect the fuse for continuity using a multimeter. If blown, replace it with a new fuse of the same amperage.

3. Test the Wiper Motor

Disconnect the wiring harness from the rear wiper motor.
Use jumper wires to connect the motor directly to the battery (positive to positive and negative to negative).
If the motor operates, the issue may be in the wiring or the control circuit. If it does not operate, replace the wiper motor.

4. Inspect Wiring and Connectors

Visually inspect the wiring harness leading to the rear wiper motor for fraying, breaks, or corrosion.
Clean any corroded connectors with electrical contact cleaner and ensure a tight connection.

5. Check and Replace Relay

Locate the wiper relay in the fuse box (consult the owner's manual for location).
Remove the relay and test it using a multimeter for continuity.
If defective, replace it with a new relay.