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© 2005 Directed Electronics, Inc. Vista, CA
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((VVAATTSS))
Vehicles with the GM VATS (Pass Key) systems have a resistor embedded in the ignition key. If the VATS decoder
module does not measure the proper resistance when the vehicle is started, the starter and fuel pump may be
disabled for up to ten minutes. An optional "VATS pack" of resistors is available
((pp//nn 665522TT))
. One of the resistors in
the pack will match the resistor in the key.
The VATS wires will be two very light-gauge wires coming out of the steering column. The colors of the wires
vary, but they are often contained in orange tubing - either both will be white wires, or one wire will be
purple/white and the other white/black. Determine the value of the resistor in the key. Then follow the diagram
below to bypass VATS during remote start operation. If the H3/1 BLUE status output has been programmed for
factory security re-arm, use the H3/2 BLUE/BLACK third ignition output to control the relay.
NNOOTTEE::
When connecting to the VATS wires, it is not important which wire is cut.
H3/1 BLUE OR
H3/2 BLUE/BLACK
(+) 12V CONSTANT FUSED
85
86
30
87
87A
DIA-621
TO IGNITION KEY SWITCH
X
X
CUT
PROPER RESISTOR VALUE
TO VATS DECODER MODULE
WHITE OR WHITE/BLACK
WHITE OR PURPLE/WHITE