1. Electrical Issues:
- Faulty Wiring: Inspect the electrical wiring and connections around the dashboard, particularly near the fuse box and the ignition switch. Look for any loose, damaged, or corroded wires.
- Faulty Ground: Ensure that the vehicle's ground connections are clean and secure, especially the one near the battery. A bad ground can cause various electrical problems.
- Faulty Ignition Switch: If the ignition switch is malfunctioning, it can result in electrical issues like the lights and wipers acting abnormally.
2. Wiper Switch Issues:
- Faulty Wiper Switch: The wiper switch itself could be faulty, causing the wipers to run fast or slow. Try replacing the wiper switch to see if that resolves the problem.
- Wiring Problems: Check the wiring and connections related to the wiper switch to ensure they are intact and not causing any issues.
3. Computer Issues:
- ECM/BCM Malfunction: If there's a problem with the Engine Control Module (ECM) or Body Control Module (BCM), it can affect various electrical functions, including the lights and wipers. Diagnosing and repairing computer issues may require professional assistance.
4. Multi-Function Switch:
- The multi-function switch, which controls various functions including lights and wipers, could be malfunctioning. Inspect and test the switch to determine if it needs to be replaced.
5. Faulty Relay:
- There might be a faulty relay related to the lights or wipers in your vehicle. Replace any suspected faulty relays to see if it fixes the problem.
It's important to note that diagnosing electrical issues can be complex and requires knowledge of automotive electrical systems. If you are unsure about any of these steps, it's advisable to seek assistance from a qualified mechanic or technician.
