Suzuki Swift Sport 2004 Service & Repair Manual page 227

Terminal Wire
No. color
Oxygen signal of
C37-10 WHT
HO2S-1
Oxygen signal of
C37-11 BRN
HO2S-2
CAN (low)
(communication
C37-12 WHT line (active low
signal) to TCM (A/T
model)
CAN (high)
communication line
C37-13 RED (active high signal)
to TCM (A/T
model)
Output of 5 V
power source for
GRY/
C37-14 MAP sensor, A/C
RED
refrigerant
pressure sensor
C37-15 BLK Ground for ECM
BLU/ Fuel injector No.3
C37-16
RED output
BLU/ Fuel injector No.4
C37-17
ORN output
EGR valve
BRN/
C37-18 (stepper motor coil
YEL
4) output
EGR valve
WHT/
C37-19 (stepper motor coil
RED
3) output
Circuit Normal voltage
0 – 1 V
*Deflects between
over 0.5 V and under
0.45 V
("Reference
waveform No.10: "
and "Reference
waveform No.11: ")
4 – 5 V
*Deflects between
over 0.5 V and under
0.45 V
("Reference
waveform No.12: ")
*0.5 – 2.5 V
("Reference
waveform No.13: ")
*2.5 – 4.5 V
("Reference
waveform No.13: ")
4.5 – 5.5 V
Below 0.3 V
10 – 14 V
*0 – 0.6 V
↑↓
10 – 14 V
("Reference
waveform No.1: " and
"Reference waveform
No.14: ")
10 – 14 V
*0 – 0.6 V
↑↓
10 – 14 V
("Reference
waveform No.1: " and
"Reference waveform
No.15: ")
10 – 14 V
*0 – 1 V
↑↓
10 – 14 V
("Reference
waveform No.4: ")
10 – 14 V
*0 – 1 V
↑↓
10 – 14 V
("Reference
waveform No.4: ")
Engine General Information and Diagnosis:
Condition
Ignition switch turned ON.
While engine running at
2,000 r/min. for 1 min. or
longer after warmed up.
Ignition switch turned ON.
While engine running at
2,000 r/min. or more after
vehicle running over 30
km/h, 19 mph for 5 min.
Ignition switch turned ON
with engine stop.
Ignition switch turned ON.
Ignition switch turned ON.
Ignition switch turned ON.
Engine running at idle
after warmed up engine.
Ignition switch turned ON.
Engine running at idle
after warmed up engine.
Ignition switch turned ON.
Ignition switch is turned to
ST (cranking) position.
Ignition switch turned ON.
Ignition switch is turned to
ST (cranking) position.
1A-177
Remarks
—
—
CAN communication line
signal is pulse. Pulse
signal displayed with a
regular frequency which
varies depending on
engine condition.
—
—
—
Output signal is active low
pulse. Pulse frequency
varies depending on
engine speed.
—
Output signal is active low
pulse. Pulse frequency
varies depending on
engine speed.
—
Output signal is active low
duty pulse. Number of
pulse generated times
varies depending on
vehicle condition.
—
Output signal is active low
duty pulse. Number of
pulse generated times
varies depending on
vehicle condition.