power wire, or the (+) terminal of the battery.

3.Operate the door lock switch/key cylinder in both directions to determine the resistor values. If the multimeter displays zero resis- tance in one direction, no resistor is needed for that direction.

4.Once the resistor value(s) is determined, refer to the wiring dia- gram for proper wiring.

DOOR LOCK SWITCH/

(+)12V

KEY CYLINDER

 

 

 

 

 

 

H2/2

LOCK

#87

#30

H2/3

 

 

 

 

 

 

RELAY

 

#87A

 

 

 

 

 

 

 

 

 

 

 

 

H2/4

 

 

 

 

 

 

H2/5

 

#87

#30

H2/6

UNLOCK

 

 

RELAY #87A

 

 

 

 

 

 

 

H2/7

 

 

 

 

 

 

 

 

WHITE/BLACK

NOT USED

 

 

 

 

 

 

 

 

 

 

 

 

GREEN/BLACK

LOCK #30 COMMON (OUTPUT)

 

 

 

 

 

 

 

 

 

 

 

 

 

VIOLET/BLACK

LOCK #87A NORMALLY OPEN (INPUT)

 

 

 

 

 

 

 

 

 

 

 

 

BROWN/BLACK

NOT USED

 

 

 

 

 

 

 

 

 

 

 

 

BLUE/BLACK

UNLOCK #30 COMMON (OUTPUT)

 

 

 

 

 

 

 

VIOLET

UNLOCK #87 NORMALLY OPEN (INPUT)

 

VIOLET & VIOLET/BLACK ARE COMMON AT FUSE HOLDER

CONSTANT FUSED

LOCK

UNLOCK

LOCK RESISTOR

(IF REQUIRED)

 

VEHICLE FUSED

 

15A

+12 VOLT CONSTANT

 

 

 

 

UNLOCK RESISTOR

 

 

(IF REQUIRED)

BCM

 

 

type H: negative (-) multiplex

The system is most commonly found in Ford, Mazda, Chrysler and GM vehicles. The door lock switch or door key cylinder may contain either one or two resistors.

SINGLE-RESISTOR TYPE: If one resistor is used in the door lock switch/key cylinder, the wire will pulse ground in one direction and resistance to ground when operated in the opposite direction.

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© 2 0 0 6 D i r e c t e d E l e c t r o n i c s

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Directed Electronics Ready Remote manual Power wire, or the + terminal of the battery