Installation guide

2244

bbyyppaassssiinngg GGMM vveehhiiccllee aannttii--tthheefftt ssyysstteemmss ((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 dis-

abled 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 BLUE status output from the relay satellite has been pro-

grammed for factory security re-arm, then use the (H3/5) BLUE/WHITE 2

status output from the control module

to control the relay.

NNOOTTEE::

When connecting to the VATS wires, it is not important which wire is cut.

BLUE OR

BLUE/WHITE

(+) 12V CONSTANT FUSED

87A

TO IGNITION KEY SWITCH

CUT

PROPER RESISTOR VALUE

TO VATS DECODER MODULE

WHITE OR WHITE/BLACK

WHITE OR PURPLE/WHITE