Reverse Polarity Door Lock System

Reverse polarity door locks this doorlock system has the factory doorlock switches wired directly to the motors in the doors.

Reverse polarity door lock system.

Door locks actuators reverse polarity positive switch trigger type d relay wiring diagram. Found mostly on mercedes benz vehicles the movement of the door lock actuators is controlled by a central vacuum pump. The switch changes polarity on a single wire that may rest at power or ground depending on the state of the door locks. Vacuum type door locks.

Determining the door lock system type 1 remove the door lock switch on the driver s side of the vehicle to reveal the switch wires. If there are three wires proceed to step 2. How to wire 5 wire reversing polarity door locks in early toyota and ford. All wires at the doorlock switch rest at ground with the exception of the 12 volt supply wire.

When the doorlock switch is activated one of the circuits is opened and 12 volts is sent to the motor to lock or unlock the. Both motor legs rest at ground at the relays. To lock or unlock the vehicle polarity is changed on one motor leg via a positive pulse from a switch alarm keyless entry etc.