Infiniti M45 (Y34). Manual — part 490
IGNITION SIGNAL
EC-649
C
D
E
F
G
H
I
J
K
L
M
A
EC
IGNITION SIGNAL
PFP:22448
Component Description
ABS002TL
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.
PBIB1116E
EC-650
IGNITION SIGNAL
Wiring Diagram
ABS002TM
TBWA0307E
IGNITION SIGNAL
EC-651
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.
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]
●
A few seconds after turning ignition switch
OFF
0 - 1.0V
[Ignition switch: OFF]
●
More than a few seconds after turning igni-
tion switch OFF
BATTERY VOLTAGE
(11 - 14V)
163
166
R
R
Power supply for ECM
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
EC-652
IGNITION SIGNAL
TBWA0308E
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