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Wiring, Typical mounting style, Scan-lock™ (white/violet) – Whelen 90A00TAR User Manual

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ARROW / WIDE ANGLE / FLOOD

Colored
This wire color will be whatever the color
of its LED is when light is switched on.

+12 VDC

Black
White/Violet

Ground
Scan-Lock™

Wire Color

Function

BACK-UP

Colored
This wire color will be whatever the color
of its LED is when light is switched on.

+12 VDC

Black

Ground

Wire Color

Function

Yellow
Brown
White
Wht/Vio

Stop Turn

/

(+ 12 VDC)

Taillight (+12 VDC)
Ground
Scan-Lock™

Wire Color

Function

BRAKE / TAIL / TURN

Yellow or Red

Black

Yellow or Red

+12 VDC
+12 VDC

, Control Wire 1
, Control Wire 2

Ground

Wire Color

Function

SPLIT / SMT

White
Grey
Black

Positive (+) High Power
Positive (+) Low Power
Ground

Wire Color

Function

COMPARTMENT LIGHT

Wiring:

IMPORTANT NOTICE! This product has been designed for improved
visibility. Prior to installing this product on any vehicle, check your
state motor vehicle codes to confirm that this product complies with
any and all state statutes.

Typical Mounting Style:

1. Using the dimensions from the diagram below, mark off and drill the

two 5/16” diameter vent tube holes and the 1” center wire hole into the
mounting surface. Make sure lighthead will not interfere with existing
equipment and be aware of any items on the opposite side of the
mounting surface.

2. Insert the two vent tubes extending from the rear of the lighthead into

their holes making sure that the lighthead is oriented as shown. Using
a scribe or similar tool, mark off the 4 mounting holes.

3. Using a 1/4” drill bit drill the four mounting holes and install the flange

grommet. Install a rubber grommet (customer supplied) into the 1” wire
hole.

WARNING! All customer supplied wires that connect to the positive
terminal of the battery must be sized to supply at least 125% of the
maximum operating current and FUSED at the battery to carry the
load. DO NOT USE CIRCUIT BREAKERS WITH THIS PRODUCT!

4. Using appropriately sized wires, run the lighthead wires to their
connections (see wiring). Fuse the +12VDC connections at 3 Amps and
test the operation of the lighthead before securing it to the vehicle.

5. Position lighthead components onto mounting surface and secure the

lighthead to the vehicle using four #8 x 1½” sheet metal screws.

This product draws significantly less current than a standard incandescent
automotive bulb. If your flasher does not operate properly, it may be
necessary to replace your existing flasher module with a Whelen 3TERM
flasher module. Contact your sales representative for specific vehicle
application.

Scan-Lock™ (White/Violet)

WARNING: Pattern selection requires the LEDs to be turned on. Do
not look directly at the LEDs while the unit is on.
TO CHANGE PATTERNS:
Apply +12 volts to the WHITE/VIOLET wire for
less than 1 second and release to cycle forward to the next available
pattern. Apply +12 volts to the WHITE/VIOLET wire for more than 1
second and release to cycle back to the previous pattern.

TO CHANGE DEFAULT PATTERN: When the desired pattern is
displayed, allow it to run for more than 5 seconds. The lighthead will now
display this pattern when initially activated.

TO RESTORE FACTORY DEFAULT PATTERN: With the power to the
lighthead off, apply +12 volts to the WHITE/VIOLET wire. Now turn power
to the lighthead on. The factory default pattern should now be displayed.

A Normally Open momentary switch can be used to control Scan-Lock™.

Flash Patterns: SignalAlert™ 75 > SignalAlert 150 > SingleFlash 375 >
SingleFlash 150 > SingleFlash 75 > SingleFlash 150 > DoubleFlash 150 >
DoubleFlash 75 > CometFlash® 75 > ActionFlash™ > ModuFlash™ >
ComAlert™ > ActionScan™ > SignalAlert Steady > Steady (Brake) Brake
Patterns:
SignalAlert Steady > Steady Brake SYNC Patterns: SignalAlert
75 simultaneous - 75 FPM > SignalAlert 75 alternating - 75 FPM Arrow
Patterns:
Sequence to Solid 150 FPM > Sequence to Solid 80 FPM >
Sequence to Solid-Steady On: Fast > Sequence to Solid-Steady On: Slow
> SignalAlert™ To Steady On > Steady On Dual Color Patterns:
SingleFlash 680 alternating > SingleFlash 240 alternating > Singleflash
120 alternating > SingleFlash 150 simultaneous > DoubleFlash 240
alternating > DoubleFlash 120 alternating > DoubleFlash 150
simultaneous > CometFlash 120 alternating > CometFlash 120
simultaneous > ActionFlash alternating > ActionFlash alternating-
simultaneous
> ModuFlash™ alternating > ModuFlash™ simultaneous >
SignalAlert 120 alternating > SignalAlert 100 simultaneous > ActionScan
alternating-simultaneous > Action Single, 4-110 FPM-2-65 FPM > CH1
Steady-CH2 SF120 > CH1 Steady-CH2 Action Single > CH1 Steady-CH2
CometFlash® 120 > Ch1 Steady / CH2 FastAction

IMPORTANT! Before returning this vehicle to active service, visually
confirm the proper operation of this product, as well as all vehicle
components/equipment.

7.250"

3.625"

2.625"

5.250"

3.020"

3.020"

3"

3"

5/16" (.312") Hole
(2 Places)

.250" (1/4")

mounting hole for

grommet (4 places)

1"

WIRE

HOLE

900 Series
Mounting
Dimensions

CAUTION! DO NOT LOOK DIRECTLY AT THESE LED’S WHILE THEY ARE ON.

MOMENTARY BLINDNESS AND/OR EYE DAMAGE COULD RESULT!

I M P O R TA N T W A R N I N G !