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20
type H: negative (-) multiplex
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.
two-resistor type
If two resistors are used in the factory door lock switch/key cylinder, the door lock
switch/key cylinder will read resistance to ground in both directions.
determining the proper resistor values
To determine the resistor values, the door lock switch/key cylinder must be isolated
from the factory door lock system. For testing, use a calibrated digital multimeter that
is set to ohms.
IIM
MPPO
ORRTTA
AN
NTT!! To ensure an accurate resistance reading, do not touch the resistor or
leads during testing.
BCM
15A
VEHICLE FUSED
+12 VOLT CONSTANT
LOCK RESISTOR
(IF REQUIRED)
UNLOCK RESISTOR
(IF REQUIRED)
DOOR LOCK SWITCH/
KEY CYLINDER
UNLOCK
(+)12V
CONSTANT FUSED
LOCK
H2/1
H2/2
H2/3
H2/5
H2/6
H2/7
GREEN/BLACK
LOCK #30 COMMON (OUTPUT)
WHITE/BLACK
LOCK #87A NORMALLY CLOSED
VIOLET/BLACK
LOCK #87 NORMALLY OPEN (INPUT)
VIOLET
UNLOCK #87 NORMALLY OPEN (INPUT)
BLUE/BLACK
UNLOCK #30 COMMON (OUTPUT)
BROWN/BLACK
UNLOCK #87A NORMALLY CLOSED
NOT USED
NOT USED
N919730P_01-07.qxd 1/12/07 3:41 PM Page 20
U
K
A
pproval Auth
or
it
y
24-Mar-10
