Wiring, Caution, Warning – Auto Meter 4389 User Manual
Page 2

12V BATTERY
(-)
(-)
(+)
(+)
AUT
O MET
ER PRODUCTS INC.
©
2005
SYCAMORE IL USA 4497
ULTRA-LITE
RPM
THOUSANDS
10
1
0
2
4 5 6
7
8
9
3
OR
OR
OR
OR
WIRING
Green
Fuse
Red
See “Warning” below
Tach output on
Electronic Ignition
Ignition
Switch
12V Battery
Good
Engine
Ground
Tach
(See
Caution
Below)
Remote Start or
Manual Arm Switch
Caution!!!
As a safety precaution the RED wire of this product should be
fused before connecting it to the positive (+) side of the 12V DC
battery. We recommend using a 4 Amp, 3AG fast-acting type
cartridge fuse (Littlefuse® #312 004 or an equivalent) inline with
the RED wire of our product.
WARNING
Warranty will be void if connected to coil
when using an aftermarket ignition box such
as, but not limited to products from the fol-
lowing manufacturers: MSD, Crane, Jacobs,
Mallory, Holley, Etc.. Prior to installation of
your tachometer, check with the ignition box
manufacturer for recommended tachometer
signal location.
Violet
(Optional Level 3 Only)
Brake or
Clutch
Switch
Trans Brake
or
Line lock
Solenoid
Black
Green
Blue
Blue
Blue
Good
Engine
Ground