How To Wire Door Lock Relays

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How to wire door lock relays.

Find the door lock relay. With a pair of needle nose pliers pull out the relay. In most cases you will not need to add relays for this type. This can be an inconvenience to the driver when trying to lock or unlock the vehicle.

The switch when moved in either direction applies both power and ground directly to motor legs without the use of any relays. Door locks 5 wire alternating 12 volts positive type c relay wiring diagram. If the door lock relay has any internal or wiring issues it can cause the door locks to function intermittently. Type a and type b are the most common types of door lock switch configurations found in most vehicles.

The vehicle is a mercury mystique also known as a ford contour. 3 wire positive door locks. Get the new relay out of its package. Using a diagram locate the door lock relay.

The engine is human made. When this wire is cut or opened the doors will lock. 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. Remove the old door lock relay.

Install the new door lock relay. Many people have replaced this elect. Except at the switch in this case both motor legs rest at ground. 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.

Power door locks not working. The doors will unlock. When this wire is grounded. The door locks may function correctly one moment and in the next will cease to operate.

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.