GxT Ferret 54 ENGINE DIAGNOSTIC CENTER - Manual (Page 14)

LEADS
Two eight foot extension harnesses plug into labeled ports on the back of the Control Module
and are routed along the boom. Test leads plug into color-coded connectors on the harnesses.
2-1
12V BATTERY LEAD
The Power Lead has Red (+) and Black (-)
battery clips that connect to the vehicle 12
volt battery at one end, and a 4-blade
connector that connects to the Control
Module at the other.
COIL PRIMARY CLIP - Distributor
This multipurpose clip connects to the
ignition coil primary winding minus (-)
terminal, sometimes labeled “TACH”. It is the
signal source for the ignition primary circuit
measurements, and it is necessary for
ignition suppression. This lead is not used
when testing DIS ignitions.
Black Red
12 Volt
CYLINDER #1 PICKUP
The red Inductive Cylinder #1 Pickup
connects around the #1 cylinder spark plug
wire on both DIS and distributor ignitions and
provides synchronization and tachometer
signals.
Place the pickup around the cylinder #1
spark plug wire as far from the plug as
possible, with the “Spark Plug” label pointing
toward the spark plug end of the wire. Also,
see the note in the lower left corner of this
page.
For Coil-Per-Plug DIS engines with no
Cylinder #1 spark plug wire, a sync signal,
can be acquired by placing the Cylinder #1
Pickup around the driver wire for the Cylinder
#1 coil.
W
HEN THE
C
YLINDER
#1
OR
P
RIMARY
A
MPS
P
ICKUPS ARE NOT BEING USED
,
LEAVE THE JAWS OPEN.
T
HE MAGNETIC CORES ARE MADE OF FERRITE
CERAMIC AND
,
WHEN KEPT APART
,
THEY ARE
LESS LIKELY TO BREAK IF THE PICKUP
IS DROPPED
.
Distributor Connections
#1 Cyl
Pickup
+ -
Coil
Primary
Clip
B L U E W H I T E G R E E N R E D Y E L L O W
˚ C /˚ F
P R O B E
K V
C L I P S
R E M O T E
" N E X T "
M A G N E T I C
T I M I N G
S T R O B E
T I M I N G
VA C U U M
P R E S S U R E
A M P
P R O B E
C Y L I N D E R
# 1
P R I M A RY
A M P S
C O I L
( - )
G R N / W H T R E D / W H T R E D / Y LW R E D / G R N
1 2 V O L T
B AT T E RY
G A S
D E T E C TO R
F E R R E T
N E T W O R K
O N LY
A U X I L I A RY
L E A D
To Cylinder #1
Position of KV
Harness