how to fix Ram 1500 DT (2019-Present) wipers that won't turn off?

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

457 words

Problem Statement

Learn how to diagnose and fix windshield wipers that won't turn off in 2019-Present Ram 1500 DT. Step-by-step guide with tools and parts required.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the vehicle is off before inspecting components.

Symptoms

•Wipers continuously operate regardless of switch position
•Wiper control stalk feels loose or unresponsive
•Possible electrical buzzing noise from the wiper motor
•Intermittent wiper settings do not function properly
•Dashboard wiper indicator light remains illuminated

Diagnostic Steps

1
Check the wiper switch for physical damage or looseness.
2
Use an OBD-II scanner to check for any related error codes.
3
Inspect the wiper relay in the fuse box for damage or malfunction.
4
Test the wiper motor for electrical continuity with a multimeter.
5
Verify the wiring harness for any signs of wear or short circuits.

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
•Screwdriver set
•Socket set
•Multimeter
•Relay puller

Parts Required

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

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Diagnostic Steps

1
Check the wiper switch for physical damage or looseness.
2
Use an OBD-II scanner to check for any related error codes.
3
Inspect the wiper relay in the fuse box for damage or malfunction.
4
Test the wiper motor for electrical continuity with a multimeter.
5
Verify the wiring harness for any signs of wear or short circuits.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace the Wiper Switch

Remove the steering column cover using a screwdriver or socket set.
Disconnect the wiring harness from the wiper switch.
Remove the wiper switch from the steering column.
Install the new wiper switch by reversing the removal steps.
Reconnect the wiring harness securely.

3. Replace the Wiper Relay

Locate the fuse box under the dashboard or hood, depending on the model.
Identify the wiper relay (refer to the fuse box diagram).
Use a socket or relay puller to remove the faulty relay.
Install the new relay into the same slot.
Ensure the relay clicks into place securely.

4. Test the Wiper Motor

Reconnect the negative battery terminal.
Turn on the ignition without starting the vehicle.
Activate the wipers to check if they operate correctly.
If the wipers still malfunction, replace the wiper motor:
- Remove the wiper arms using a puller if necessary.
- Disconnect the motor wiring harness and mounting bolts.
- Install the new wiper motor and reconnect the harness.