Suzuki GRAND VITARA -, Service Manual

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1A-215 Engine General Information and Diagnosis:
C37-16
PNK/
GRN
Fuel injector No.3
10 – 14 V Ignition switch turned ON. —
*0 – 0.6 V
↑↓
10 – 14 V
(“Reference
waveform No.1: ” and
“Reference waveform
No.10: ”)
Engine running at idle
after warmed up engine.
Output signal is active low
pulse. Pulse frequency
varies depending on
engine speed.
C37-17
PNK/
BLU
Fuel injector No.4
10 – 14 V Ignition switch turned ON. —
*0 – 0.6 V
↑↓
10 – 14 V
(“Reference
waveform No.1: ” and
“Reference waveform
No.11: ”)
Engine running at idle
after warmed up engine.
Output signal is active low
pulse. Pulse frequency
varies depending on
engine speed.
C37-18
BRN/
YEL
Ignition coil No.4
(for J20 engine)
0 – 0.6 V Ignition switch turned ON. —
*0 – 0.6 V
↑↓
3 – 5 V
(“Reference
waveform No.12: ”
and “Reference
waveform No.13: ”)
Engine running at idle
after warmed up engine.
Output signal is active
high pulse. Pulse
frequency varies
depending on engine
speed.
C37-19
BRN/
WHT
Ignition coil No.3
(for J20 engine)
0 – 0.6 V Ignition switch turned ON. —
*0 – 0.6 V
↑↓
3 – 5 V
(“Reference
waveform No.12: ”
and “Reference
waveform No.14: ”)
Engine running at idle
after warmed up engine.
Output signal is active
high pulse. Pulse
frequency varies
depending on engine
speed.
C37-20
BRN/
BLK
Ignition coil No.2
and No.3 (for M16
engine)
0 – 0.6 V Ignition switch turned ON. —
Ignition coil No.2
(for J20 engine)
*0 – 0.6 V
↑↓
3 – 5 V
(“Reference
waveform No.12: ”
and “Reference
waveform No.15: ”)
Engine running at idle
after warmed up engine.
Output signal is active
high pulse. Pulse
frequency varies
depending on engine
speed.
C37-21 BRN
Ignition coil No.1
and No.4 (for M16
engine)
0 – 0.6 V Ignition switch turned ON. —
Ignition coil No.1
(for J20 engine)
*0 – 0.6 V
↑↓
3 – 5 V
(“Reference
waveform No.12: ”
and “Reference
waveform No.16: ”)
Engine running at idle
after warmed up engine.
Output signal is active
high pulse. Pulse
frequency varies
depending on engine
speed.
C37-22
BLK/
YEL
Starting motor
control relay output
0 – 1 V Ignition switch turned ON.
—
8 – 14 V
Ignition switch turned to
ST (engine cranking)
position.
C37-23 — — — — —
Terminal
No.
Wire
color
Circuit Normal voltage Condition Remarks
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