How To Wire Door Lock Relays

Power door locks not working.

How to wire door lock relays. Most of the newer alarms and keyless entries on the market today have both positive and negative 200 ma door lock outputs that are usually capable of activating the factory relays. Find the door lock relay. 3 wire positive door locks. With a pair of needle nose pliers pull out the relay.

Using a diagram locate the door lock relay. Remove the old door lock relay. The door locks may function correctly one moment and in the next will cease to operate. The switch when moved in either direction applies both power and ground directly to motor legs without the use of any relays.

Nissan s single wire 91 95 using 2 relays type f on the 91 95 300zx and the 92 95 240sx locate the lock unlock wire in the driver s kick panel or door jamb. Using a mechanical latching relay like the pcb latching relay pictured here you can use a single negative output to alternately lock and unlock the doors the mechanical latching relay only requires it s coil to be momentarily energized to change and maintain the opening or closing of it s contacts. Except at the switch in this case both motor legs rest at ground. Many people have replaced this elect.

The doors will unlock. Door locks single pulse to lock and unlock negative pulse relay wiring diagram. If the door lock relay has any internal or wiring issues it can cause the door locks to function intermittently. Get the new relay out of its package.

When this wire is grounded. The vehicle is a mercury mystique also known as a ford contour. The engine is human made. In most cases you will not need to add relays for this type.

Door locks 5 wire alternating 12 volts positive type c relay wiring diagram. Go to the breaker panel on the wall next to the brake pedal. Install the new door lock relay. This can be an inconvenience to the driver when trying to lock or unlock the vehicle.

When this wire is cut or opened the doors will lock.