Reverse Polarity Door Lock System

How to wire 5 wire reversing polarity door locks in early toyota and ford.

Reverse polarity door lock system.

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. If the vehicle is a nissan and it does not have a door lock. To the coil of the respective relay.

If there are three wires proceed to step 2. If there are four or more wires make the connections shown in diagram 4 for reverse polarity. 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.

All wires at the doorlock switch rest at ground with the exception of the 12 volt supply wire. To lock or unlock the vehicle polarity is changed on one motor leg via a positive pulse from a switch alarm keyless entry etc. The switch changes polarity on a single wire that may rest at power or ground depending on the state of the door locks.