Suzuki Grand Vitara Service Manual page 225

Terminal Wire
No. color
WHT/ CKP sensor signal
BLU (for M16 engine)
C37-51
Crankshaft position
GRN (CKP) sensor (+)
(for J20 engine)
WHT/
C37-52 CMP sensor signal
RED
Output for 5 V
power source of
C37-53 WHT
throttle position
sensor
Throttle position
C37-54 BLK sensor (main)
signal
Manifold absolute
RED/
C37-55 pressure (MAP)
WHT
sensor signal
Knock sensor
C37-56 WHT
signal
GRY/
C37-57 Ground for sensors
GRN
BLK/
C37-58 Ground for ECM
YEL
Oil control valve
BRN/
C37-59 ground (for M16
YEL
engine)
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Circuit Normal voltage
0 – 1 V or 4 – 5 V
*4 – 5 V
↑↓
0 – 0.6 V
("Reference
waveform No.20: "
and "Reference
waveform No.21: ")
0 – 1 V
*4 – 6 V
↑↓
–4 – –6 V
("Reference
waveform No.20: "
and "Reference
waveform No.21: ")
0 – 1 V or 4 – 5 V
*0 – 0.6 V
↑↓
4 – 5 V
("Reference
waveform No.20: "
and "Reference
waveform No.21: ")
4.5 – 5.5 V
0.72 – 1.04 V
3.67 – 4.25 V
Approx. 4 V
("Reference
waveform No.24: "
0.4 – 2.0 V
("Reference
waveform No.25: "
2 – 3 V
("Reference
waveform No.26: "
and "Reference
waveform No.27: ")
Below 0.3 V
Below 0.3 V
Below 1.3 V
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Engine General Information and Diagnosis:
Condition
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.
Engine running at idle
after warmed up engine.
Ignition switch turned ON.
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
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.
Engine running at 4000 r/
min. after warmed up.
Ignition switch turned ON.
Ignition switch turned ON.
Ignition switch turned ON.
1A-218
Remarks
—
Sensor signal is pulse.
Pulse frequency which
varies depending on
engine speed.
(30 (36 – 6) pulses are
generated per 1
crankshaft revolution.)
—
Output signal is sinusoidal
waveform.
Waveform frequency
varies depending on
engine speed. (30 (36 – 6)
pulses are generated par
1 crankshaft revolution.)
—
Sensor signal is pulse.
Pulse frequency varies
depending on engine
speed.
(6 pulses are generated
per 1 camshaft revolution.)
—
—
—
—
—
—
—