Mazda RX-7 FD Retractable Headlight Motor Repair

See the article below for how to remove the retractable headlight assembly.

Remove the two screws and disassemble the switch.

There is a black dirt on the contact. Especially, black dirt are attached to the central contact and the inner contact. Clean this with a waste cloth.

It has become clean. With this, I connected 12V and confirmed the operation, but it stopped at a certain point on the up side.

Further verification. Even if you look at the circuit diagram, it’s a simple circuit, so what’s wrong? There is no problem because the relay clicks. Probably due to poor contact.

The operation of the retractable light is like this. A short circuit between the red circle in the middle and a blue circle on the inside is a half-turn up operation, and a short circuit between the red circle in the middle and the yellow circle on the outside is a down operation. How do you control it …

The blue circle on the circumference of the inner terminal has no copper plate and is disconnected from the middle terminal. This is the position where the motor should stop working. At that time, the terminal in the middle and the outside are in a conductive state, so if you move the switch of the retractable light to the opposite side, the motor will be driven.

After that, when the outer terminal goes to the position of the green circle, the motor will stop. The motor always rotates in one direction regardless of whether the retractable headlight is operated up or down.

This time it will stop at the position of the red circle, so I will sandpaper there. Then I put it back in, plugged it in, and tested it, and it worked perfectly.

If you send the repair to the dealer, the motor assembly will be replaced, and the cost will be more than 500 dollars. If it is the same failure, it can be repaired in about 2 hours, so why not check it before bringing it to the dealer?