Auto Meter 6387 - Manual (Page 2)

Sine
Wave
2 Wire
Sender
Sine
Wave
2 Wire
Sender
V.S.S.
PCM,
ECM,
COMPUTER
IF NO
COMPUTER
COMPUTER
CONTROLLED,
TAP ONTO
HI-SIDE V.S.S.
SIGNAL
GND
LO
HI
HI
OR IF
LO
Remove cap for cruise
control cable, otherwise
leave cap installed.
GND
3-Wire Sender
BLACK
Orange
White
Back of gauge
12V DASH
LIGHTING
Dims Digital Display
When Power is Applied.
VSS to ECM
(see Note)
FUSE
(SEE CAUTION)
12V
IGNITION
SWITCH
(OR)
Red
mounting
1. Mount this instrument in a 3 3 / 8 " dia. hole.
2. Cut a 3 / 8 " dia. hole in the firewall for the speedometer wires. Place a rubber grommet
in the hole and route the wires through the grommet to the engine compartment.
3. Connect the speedometer wires as shown in the wiring sections.
4. Secure the speedometer to the dashboard using the provided bracket and hardware.
3 3 /
8
" models
2 1 / 8 "
3¾ " 3 11 / 32 "
Wiring
Auto meter hall-Effect senders (Square Wave)
- Models 5291 (standard 7/8-18 thread) &
5292 (Ford Plug in Sensor), 3 wire sender,
cruise.
NOTE: The speedometer signal output
terminal (VSS) produces a +5
volt DC Square wave signal.
This signal may be able to
be used as a VSS signal with
some OEM and aftermarket
ECM’s and cruise control units.
CAUTION!
As a safety precaution, the power wire to this product
should be fused before connecting it to the positive
(+) side of the 12 VDC battery. We recommend using
a 1 Amp fuse.
Use 20 AWG stranded or
heavier wire for hook-up
most OEm style or Factory Installed,
2 wire senders (Sine Wave)
ImPORTANT
When using most OEM/factory installed
(2 wire) senders, you must calibrate the
speedometer before it will function properly.
Use 20 AWG stranded or
heavier wire for hook-up
BLACK
GREEN
GREEN
OR
GROMMET IN
FIREWALL
EARLY MODEL IGNITION
GOOD ENGINE GROUND
TACH
TERMINAL
ELECTRONIC IGNITION
BLACK
VIOLET
RED
VIOLET
RED
BLACK
WARNING
Warranty will be void if connected to
coil when using an aftermarket ignition
box such as, but not limited to products
from the following manufacturers: MSD,
Crane, Jacobs, Mallory, Holley, Etc..
Prior to installation of your tachometer,
check with the ignition box manufacturer
for recommended tachometer
signal location.