Engine General Information and Diagnosis: 1A-218
C37-51
WHT/
BLU
CKP sensor signal
(for M16 engine)
0 – 1 V or 4 – 5 V
Ignition switch turned ON.
—
*4 – 5 V
↑↓
0 – 0.6 V
(“Reference
waveform No.20: ”
and “Reference
waveform No.21: ”)
Engine running at idle
after warmed up engine.
Sensor signal is pulse.
Pulse frequency which
varies depending on
engine speed.
(30 (36 – 6) pulses are
generated per 1
crankshaft revolution.)
GRN
Crankshaft position
(CKP) sensor (+)
(for J20 engine)
0 – 1 V
Ignition switch turned ON.
—
*4 – 6 V
↑↓
–4 – –6 V
(“Reference
waveform No.20: ”
and “Reference
waveform No.21: ”)
Engine running at idle
after warmed up engine.
Output signal is sinusoidal
waveform.
Waveform frequency
varies depending on
engine speed. (30 (36 – 6)
pulses are generated par
1 crankshaft revolution.)
C37-52
WHT/
RED
CMP sensor signal
0 – 1 V or 4 – 5 V
Ignition switch turned ON.
—
*0 – 0.6 V
↑↓
4 – 5 V
(“Reference
waveform No.20: ”
and “Reference
waveform No.21: ”)
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.)
C37-53
WHT
Output for 5 V
power source of
throttle position
sensor
4.5 – 5.5 V
Ignition switch turned ON.
—
C37-54
BLK
Throttle position
sensor (main)
signal
0.72 – 1.04 V
Ignition switch turned ON
and accelerator pedal at
idle position after warmed
up engine.
—
3.67 – 4.25 V
Ignition switch turned ON
and accelerator pedal at
full depressed position
after warmed up engine.
C37-55
RED/
WHT
Manifold absolute
pressure (MAP)
sensor signal
Approx. 4 V
(“Reference
waveform No.24: ”
Ignition switch turned ON
with barometric pressure
at 100 kPa, 760 mmHg.
—
0.4 – 2.0 V
(“Reference
waveform No.25: ”
While engine running at
specified idle speed after
warmed up with
barometric pressure at
100 kPa, 760 mmHg.
C37-56
WHT
Knock sensor
signal
2 – 3 V
(“Reference
waveform No.26: ”
and “Reference
waveform No.27: ”)
Ignition switch turned ON.
—
Engine running at 4000 r/
min. after warmed up.
C37-57
GRY/
GRN
Ground for sensors
Below 0.3 V
Ignition switch turned ON.
—
C37-58
BLK/
YEL
Ground for ECM
Below 0.3 V
Ignition switch turned ON.
—
C37-59
BRN/
YEL
Oil control valve
ground (for M16
engine)
Below 1.3 V
Ignition switch turned ON.
—
Terminal
No.
Wire
color
Circuit
Normal voltage
Condition
Remarks
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