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Type C: Direct-wired reversing polarity switches
Interfacing with a reversing polarity system requires either two relays OR one DEI
451M (not included).
It is critical to identify the proper wires and locate the master switch to interface
the door locks properly. This door lock system will be referenced on our vehicle
specific wiring information sheet as a system.
Locate wires that show voltage on lock and unlock. Cut one of the suspected
wires and check operation of the locks from both switches. If one switch loses
operation in both directions and the other switch operates in one direction only
the system is Type C; you have located one of the target wires. The switch that
lost all operation is the master switch.
If one switch works in both directions and the other switch works in only one
direction, you have a Type A system. If both switches still operate, but one or
more doors has stopped responding entirely, you have cut a motor lead. Recon-
nect it and continue to test for another wire. Once both wires have been located
and the master switch has been identified, cut both wires and interface as shown
in the following diagram.
GREEN
(-)
LOCK WIRE
BLUE
3
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