Suzuki Swift Sport 2004 Service & Repair Manual page 230

1A-180 Engine General Information and Diagnosis:
Terminal Wire
No. color
Ground of ECM for
C37-50 —
shield wire
Ground of ECM for
C37-51 —
shield wire
Ground of ECM for
C37-52 —
shield wire
RED/
C37-53 MAP sensor signal
BLK
TP sensor (main)
C37-54 GRN
signal
C37-55 ORN Ground for sensors
Knock sensor
C37-56 RED
signal
C37-57 YEL Ground for sensors
BLK/
C37-58 Ground for ECM
ORN
YEL/ Oil control valve
C37-59
GRN ground
YEL/ Oil control valve
C37-60
RED output
Terminal Wire
No. color
BLK/
E23-1 Main power supply
RED
Power source for
WHT/
E23-2 ECM internal
RED
memory
CAN (high)
communication line
(active high signal)
E23-3 RED
for ABS control
module, BCM,
combination meter
Circuit Normal voltage
Below 0.3 V
Below 0.3 V
Below 0.3 V
Approx. 4 V
("Reference
waveform No.23: ")
0.4 – 2.0 V
("Reference
waveform No.24: ")
0.75 – 1.08 V
3.67 – 4.24 V
Below 0.3 V
2 – 3 V
("Reference
waveform No.25: "
and "Reference
waveform No.26: ")
Below 0.3 V
Below 0.3 V
Below 1.3 V
*0 – 0.6 V
↑↓
10 – 14 V
("Reference
waveform No.27: "
and "Reference
waveform No.28: ")
Circuit Normal voltage
10 – 14 V
10 – 14 V
*2.5 – 4.5 V
("Reference
waveform No.29: ")
Condition
Ignition switch turned ON.
Ignition switch turned ON.
Ignition switch turned ON.
Ignition switch turned ON
with barometric pressure
at 100 kPa, 760 mmHg.
While engine running at
specified idle speed after
warmed up with
barometric pressure at
100 kPa, 760 mmHg.
Ignition switch turned ON
and accelerator pedal at
idle position after warmed
up engine.
Ignition switch turned ON
and accelerator pedal at
full depressed position
after warmed up engine.
Ignition switch turned ON.
Ignition switch turned ON.
Engine running at 4000 r/
min. after warmed up.
Ignition switch turned ON.
Ignition switch turned ON.
Ignition switch turned ON.
At the moment of ignition
switch turned ON.
Condition
Ignition switch turned ON.
Ignition switch turned ON.
Ignition switch turned ON
with engine at stop.
Remarks
—
—
—
—
—
—
—
—
—
—
Output signal is active
high pulse. Duty ratio
varies depending on
vehicle condition.
Remarks
—
—
CAN communication line
signal is pulse. Pulse
signal displayed with a
regular frequency with
varies depending on
engine condition.