Suzuki SWIFT RS415 2017, Service Manual

Page: 211 / 1257

Engine General Information and Diagnosis: 1A-163
C37-20
RED/
YEL
CMP sensor signal
0 – 1 V or 4 – 5 V Ignition switch turned ON. —
*0 – 0.6 V
np
4 – 5 V
(“Reference
waveform No.15: ”
and “Reference
waveform No.16: ”)
Engine running at idle
after warmed up engine.
Sensor signal is pulse.
Pulse frequency varies
depending on engine
speed.
(6 pulses are generated
per 1 camshaft revolution.)
C37-21 PNK CKP sensor signal
0 – 1 V or 4 – 5 V Ignition switch turned ON. —
*4 – 5 V
np
0 – 0.6 V
(“Reference
waveform No.15: ”
and “Reference
waveform No.16: ”)
Engine running at idle
after warming up engine.
Sensor signal is pulse.
Pulse frequency varies
depending on engine
speed.
(30 (36 – 6) pulses are
generated per 1
crankshaft revolution.)
C37-22 — — — — —
C37-23 — — — — —
C37-24 LT GRN
Engine coolant
temp. (ECT)
sensor signal
3.3 – 3.8 V
Ignition switch turned ON,
ECT at 0
q
C, 32
q
F.
— 1.38 – 1.72 V
Ignition switch turned ON,
ECT at 50
q
C, 122
q
F.
0.40 – 0.53 V
Ignition switch turned ON,
ECT at 100
q
C, 212
q
F.
C37-25
BLK/
YEL
Intake air temp.
(IAT) sensor signal
3.18 – 3.67 V
Ignition switch turned ON,
IAT at 0
q
C, 32
q
F.
— 1.32 – 1.65 V
Ignition switch turned ON,
IAT at 40
q
C, 104
q
F.
0.46 – 0.60 V
Ignition switch turned ON,
IAT at 80
q
C, 176
q
F.
C37-26
GRN/
BLK
Mass air flow
(MAF) sensor
signal
0.5 – 1.5 V
Ignition switch turned ON
with engine at stop.
— 1.5 – 2.0 V
(“Reference
waveform No.17: ”)
When engine running at
specified idle speed after
warmed up.
C37-27 GRY
Ground for MAF
sensor
Below 0.3 V Ignition switch turned ON. —
C37-28 — — — — —
C37-29
BLU/
BLK
EVAP canister
purge valve output
10 – 14 V
Ignition switch turned ON
with engine at stop.
—
*0 – 0.6 V
np
10 – 14 V
(“Reference
waveform No.18: ”)
Set EVAP canister purge
valve at 52% by using
“Misc Test” of scan tool.
Output signal is active low
duty pulse. Duty ratio
varies depending on
vehicle condition.
C37-30 BLK Ground for ECM Below 0.3 V Ignition switch turned ON. —
C37-31 — — — — —
C37-32 — — — — —
C37-33 — — — — —
C37-34 — — — — —
C37-35 — — — — —
C37-36 — — — — —
C37-37 — — — — —
C37-38 — — — — —
C37-39 — — — — —
C37-40 — — — — —
C37-41 — — — — —
C37-42 — — — — —
Terminal
No.
Wire
color
Circuit Normal voltage Condition Remarks