Current passes from the battery through the starter relay to the safety
relay which, in turn, is connected to the bus bar of the circuit breaker.
Each window regulator has its own circuit breaker.
From this point, voltage enters the door relays at terminal 3. The lead from
relay terminal 4 is connected to the motor armature, and terminals 5 and 6
are connected to the field coils.
Thus, a circuit through 4 and 5 will turn the motor in one direction, and a
circuit through 4 and 6 will reverse the direction of rotation.
Terminals 1 and 2 receive the leads from the individual door switch and
also from one of the multiple switches provided for driver control of all
The wiring color code for this circuit will be found on page 30.