Infiniti F50. Manual — part 500
IGNITION SIGNAL
EC-641
C
D
E
F
G
H
I
J
K
L
M
A
EC
IGNITION SIGNAL
PFP:22448
Component Description
EBS00MNW
IGNITION COIL & POWER TRANSISTOR
The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil
secondary circuit.
PBIB1248E
EC-642
IGNITION SIGNAL
Wiring Diagram
EBS00MNX
TBWM0167E
IGNITION SIGNAL
EC-643
C
D
E
F
G
H
I
J
K
L
M
A
EC
Specification data are reference values and are measured between each terminal and ground.
Pulse signal measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
12
W/L
Counter current return
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
42
W/B
ECM relay
(Self shut-off)
[Engine is running]
[Ignition switch “OFF”]
●
For a few seconds after turning ignition
switch “OFF”
0 - 1.0V
[Ignition switch “OFF”]
●
More than a few seconds passed after turn-
ing ignition switch “OFF”
BATTERY VOLTAGE
(11 - 14V)
163
166
R
R
Power supply for ECM
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
EC-644
IGNITION SIGNAL
TBWM0168E
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