Auto Dimming Rear View Mirror Wiring Diagram

Auto dimming rear view mirrors are becoming increasingly popular for their ability to reduce glare from headlights during nighttime driving. If you are planning to install an auto dimming rear view mirror, you will need to know how to wire it properly. In this article, we will provide you with a wiring diagram and a step-by-step guide on how to install an auto dimming rear view mirror.

What is an Auto Dimming Rear View Mirror?

An auto dimming rear view mirror is a type of rear view mirror that adjusts its shading based on the level of light hitting it. It uses a sensor that detects the level of light and then activates the shading mechanism to reduce glare. This makes driving at night safer and more comfortable.

There are two main types of auto dimming rear view mirrors: those that use electrochromic technology and those that use photochromic technology. Electrochromic mirrors use electricity to change the mirror’s shading, while photochromic mirrors use a chemical reaction when exposed to light to change their shading.

No matter which type of auto dimming rear view mirror you choose, it is important to install it correctly to ensure its functionality.

What You Will Need

Before you begin your installation, you will need to gather some tools and materials. Here is a list of what you will need:

Tools Materials
Screwdriver Auto dimming rear view mirror
Wire strippers Mounting kit
Pliers Electrical tape
T-tap connectors Zip ties
Multimeter

Step-by-Step Guide

Step 1: Remove the Existing Rear View Mirror

The first step is to remove your existing rear view mirror. This can usually be done by gently pulling down on it until it releases from the windshield. If your mirror has a button or lever to adjust it, you will need to disconnect the wiring harness before removing the mirror completely.

Be sure to save any screws or clips that were used to attach the mirror to the windshield, as you may need them later.

Step 2: Install the Mounting Kit

Next, you will need to install the mounting kit that came with your auto dimming rear view mirror. Follow the instructions that came with the kit to position the mounting bracket correctly on your windshield.

The mounting bracket should be located at the same height as the previous rear view mirror and as close to the center of the windshield as possible for the best view.

Use the screws or clips that you saved from the previous mirror to secure the mounting bracket in place.

Step 3: Connect the Wiring

Now it’s time to connect the wiring for your auto dimming rear view mirror. Locate the wiring harness for your mirror and plug it into the appropriate port on the mirror.

Next, use a wire stripper to strip the insulation off of the wires at the end of the harness. Use pliers to twist the bare ends of the wires together.

Take the T-tap connectors and slide them over the twisted wires, then use pliers to crimp them into place. You will need to do this for both the positive and negative wires.

Finally, connect the T-tap connectors to the appropriate wires in your vehicle’s electrical system. You can use a multimeter to test the wires to make sure you have the correct ones.

Step 4: Secure the Wiring

Once you have connected the wiring, use zip ties to secure the wires to the base of the mounting bracket. This will prevent the wires from becoming tangled or interfering with your view while driving.

Be sure to tape any exposed wires with electrical tape to prevent them from shorting out or becoming damaged.

Step 5: Test the Mirror

Once everything is wired and secured, it’s time to test your auto dimming rear view mirror. Turn on your headlights and switch the mirror to its automatic setting.

If everything is wired correctly, the mirror should automatically adjust its shading to reduce glare from the headlights. If it doesn’t work, double-check your wiring and connections.

FAQ

How does an auto dimming rear view mirror work?

Auto dimming rear view mirrors use a sensor that detects the level of light hitting it. When it detects bright light, it activates a shading mechanism to reduce glare and make driving at night safer and more comfortable.

Can I install an auto dimming rear view mirror myself?

Yes, you can install an auto dimming rear view mirror yourself if you have the right tools and instructions. Be sure to follow the wiring diagram and step-by-step guide provided to ensure a safe and functional installation.

Can I install an auto dimming rear view mirror on any car?

Most auto dimming rear view mirrors are designed to be universal and can be installed on any car. However, check the manufacturer’s specifications to make sure your mirror is compatible with your vehicle’s make and model.

Do I need any special tools to install an auto dimming rear view mirror?

You will need some basic tools and materials to install an auto dimming rear view mirror, including a screwdriver, wire strippers, pliers, T-tap connectors, and zip ties. You may also need a multimeter to test your wiring connections.

What are the advantages of an auto dimming rear view mirror?

Auto dimming rear view mirrors reduce glare from headlights during nighttime driving, making it safer and more comfortable. They also eliminate the need to adjust your mirror manually, allowing you to keep your focus on the road.

Are auto dimming rear view mirrors expensive?

The cost of an auto dimming rear view mirror can vary depending on the make and model. However, they are generally affordable and can be a worthwhile investment for their safety benefits.

Conclusion

Installing an auto dimming rear view mirror is a simple process that can be done by anyone with the right tools and instructions. Follow the steps provided in this article to ensure a safe and functional installation. With an auto dimming rear view mirror, you can drive at night with increased safety and comfort.