why does my Alfa Romeo Giulia's windshield wipers not work

Symptoms

• Windshield wipers do not operate at all.
• Wiper control stalk does not respond.
• Wipers may move intermittently or erratically.
• No noise from the wiper motor when activated.
• Washer fluid does not spray when activated.
• Check for any warning lights on the dashboard related to electrical systems.

Diagnostic Steps

1. Check the wiper fuse in the fuse box for any blown fuses.
2. Use an OBD-II scanner to check for any error codes that may indicate electrical issues.
3. Inspect the wiper control stalk for any physical damage or disconnection.
4. Test the wiper motor by applying direct power to it.
5. Check the wiring harness for any signs of damage or corrosion.
6. Inspect the wiper linkage for any disconnected or broken components.

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Ensure the vehicle is on a flat surface and the ignition is off.

2. Check and Replace Wiper Fuse

• Locate the fuse box, typically found in the driver’s footwell or under the hood.
• Identify the windshield wiper fuse using the diagram on the fuse box cover.
• Remove the fuse using a fuse puller or pliers.
• Inspect the fuse for continuity; replace if blown with a new fuse of the same amperage.

3. Inspect and Replace Wiper Motor

• If the fuse is intact, locate the wiper motor, usually under the cowl panel at the base of the windshield.
• Disconnect the electrical connector from the wiper motor.
• Use a multimeter to test for voltage at the connector while operating the wiper control stalk.
• If voltage is present but the motor does not operate, remove the wiper motor by unscrewing the mounting bolts.
• Replace the motor with a new one, ensuring all connections are secure.

4. Check Wiper Control Stalk

• If the motor is functioning, check the wiper control stalk.
• Remove the steering column cover to access the stalk.
• Inspect for any loose connections or damaged wiring.
• If necessary, replace the wiper control stalk with a new unit.

5. Reassemble and Test

• Reassemble all components and reconnect the battery.
• Test the wipers for functionality in all modes (intermittent, low, and high).
• Ensure the washer fluid system is operational as well.