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WIRING PROVISIONS FOR VEHICLE
6J3
GRILLE LAMPS AND SPEAKER/SIREN
A
A. Blunt cut ends for the customer-furnished grille lamps and
customer-furnished siren/speaker
B. Control wires from in-line connector in forward lamp harness
for customer-furnished grille lamps and speaker
The SEO 6J3 wiring provision has a 5-foot (1.5 m) harness coiled
underneath the instrument panel on the passenger side. The
wiring circuits are routed from under the instrument panel to a
1-foot (30 cm) coil secured in the area behind the grille. There are
four 16-gauge (1.0 mm2) wires for connecting to the grille lamps
(GRY, TAN) and siren speaker (LT BU, LT GN)
The SEO 6J3 wiring provision also includes one 18-gauge (0.8
mm2) control wire for the SEO 6J7 Exterior Lamps Emergency
Flashing System.
When Option 6J7 is installed without Option 6J3, only the blunt-
cut green control wire is provided under the center instrument
panel for activating the Emergency Flashing System. The blunt-
cut blue/green Separation-of-Function wire for customer
switching to activate only rear lamps flashing is located in the
upfitter branch harness exiting below the center instrument panel.
For only rear lamps flashing, power to the green module
activation wire must be off.
Note: For wiring diagram see Wiring Section
2019 TAHOE 4X4
SPECIAL SERVICE
OPTIONAL EQUIPMENT
B
WIRING PROVISION
WX7
FOR FRONT SPEAKERS
Approximately 60 inches (1.5 m) of auxiliary speaker wiring is routed from the
front door and windshield pillar speakers and coiled under the instrument
panel. The wiring permits connection of the front speaker pairs to customer-
installed communication equipment. Vehicle radio front speaker outputs are
re-routed to the rear speakers to maintain the required open door/key-in-
ignition and other audible warnings.
NOTE: For wiring diagram see Wiring Section
WIRING PROVISION
6J4
FOR HORN SIREN CIRCUIT
This provision permits customer connection of a switch to select either horn of
siren operation when the horn pad is pressed.
A 22-gauge (0.35 mm2) wire is connected to an in-line connector in the horn
circuit of the instrument panel harness under the instrument panel. The end of
this harness extension is a 5-foot (1.5 m) loop of wire coiled under the center
of the instrument panel.
NOTE: For wiring diagram see Wiring Section
27
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