how to fix the windshield wipers not working on my Ram 1500 DT (2019-Present)

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

605 words

Problem Statement

Learn how to diagnose and fix windshield wipers not working on 2019 Ram 1500 DT. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid shocks or shorts.
•Allow the engine to cool before working under the hood or near electrical components.

Symptoms

•Windshield wipers do not operate when activated
•Wipers are stuck in a specific position
•Intermittent wiper function fails to work properly
•No sound or movement from the wiper motor
•Dashboard wiper indicator light is not illuminated

Diagnostic Steps

1
Inspect the windshield wiper fuse in the fuse box for any signs of damage or a blown fuse.
2
Use an OBD-II scanner to check for any related error codes that could indicate electrical issues.
3
Test the wiper switch for continuity using a multimeter to ensure it is functioning correctly.
4
Check the wiring harness connected to the wiper motor for any signs of wear or disconnection.
5
Apply direct power to the wiper motor to determine if the motor itself is functioning.

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
•Fuse puller or pliers
•Basic hand tools (screwdrivers, socket set)

Parts Required

•Wiper motor (if faulty)
•Wiper switch (if faulty)
•Wiper fuse (if blown)

Related Faults

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Diagnostic Steps

1
Inspect the windshield wiper fuse in the fuse box for any signs of damage or a blown fuse.
2
Use an OBD-II scanner to check for any related error codes that could indicate electrical issues.
3
Test the wiper switch for continuity using a multimeter to ensure it is functioning correctly.
4
Check the wiring harness connected to the wiper motor for any signs of wear or disconnection.
5
Apply direct power to the wiper motor to determine if the motor itself is functioning.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat surface and turn off the ignition.
Disconnect the negative battery terminal to ensure safety during repairs.

2. Inspect and Replace the Wiper Fuse

Tools Required: Fuse puller or pliers
Locate the fuse box (usually under the dashboard or in the engine compartment).
Identify the wiper fuse using the diagram on the fuse box cover.
Remove the fuse and inspect it for continuity. If blown, replace it with a fuse of the same amperage (usually 20A for wipers).

3. Test and Replace the Wiper Switch

Tools Required: Multimeter
Remove the steering column cover to access the wiper switch.
Disconnect the switch connector.
Set the multimeter to the continuity setting and test the pins on the switch for proper function.
If the switch is faulty, replace it with a new one by reversing the removal steps.

4. Inspect and Test the Wiper Motor

Tools Required: Multimeter, basic hand tools (screwdrivers, socket set)
Locate the wiper motor, typically found under the cowl panel.
Disconnect the electrical connector from the wiper motor.
Use the multimeter to test for power at the connector while activating the wiper switch.
If power is present but the motor does not operate, remove the motor and replace it with a new unit, ensuring to torque bolts to manufacturer specifications.

5. Reassemble and Test

Reconnect all electrical connectors and replace any covers or panels removed.
Reconnect the negative battery terminal.
Test the windshield wipers for proper operation.