Suzuki Engine 2002 GRAND VITARA SQ625, Руководство по обслуживанию

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ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE) 6-1-49
C51-1-15 RED
4WD air pump assembly out-
put
10 – 14 V
Ignition switch turned ON, Transfer
selector selected at “4L” or “4H” position
0 – 1 V
Ignition switch turned ON, Transfer
selector selected at “2H” position
C51-1-16 BLU/YEL
A/T input shaft speed sensor
signal (+)
0 – 1 V Ignition switch turned ON
✱
4 – 6 V
↑↓
–4 – –6 V
(Repeated
indicator)
Engine running at idling after warming
up between A/T input shaft speed sen-
sor signal (–) and (+).
(Input signal is sinusoidal waveform.
Waveform frequency varies depending
on engine speed. Signal generated
90Hz at idling speed)
C51-1-17 YEL/WHT
ECT sensor signal for combi-
nation meter
✱
0 – 0.6 V
↑↓
4 – 6 V
(Repeated
indicator)
Ignition switch turned ON
(Output signal is 60 Hz active low duty
pulse. Duty ratio varies depending on
ECT.)
ECT 40°C = 45% ON duty
ECT 120°C = 85% ON duty
C51-1-18 PNK
Pressure switch signal for
4WD air pump assembly
10 – 14 V
Ignition switch turned ON, Transfer
selector lever selected at “4H” or “4L”
position
0 – 1 V
Ignition switch turned ON, Transfer
selector lever selected at “2H” position
C51-1-19 GRN/BLU
“L” position signal for transmis-
sion range switch (A/T)
10 – 14 V
Ignition switch turned ON, Selector
switch selected at “L” position
0 – 1 V
Ignition switch turned ON, Selector
switch selected at other than “L” posi-
tion
C51-1-20 GRN/ORN
“2” position signal for trans-
mission range switch (A/T)
10 – 14 V
Ignition switch turned ON, Selector
switch selected at “2” position
0 – 1 V
Ignition switch turned ON, Selector
switch selected at other than “2” posi-
tion
C51-2-1 GRN/BLK
EVAP canister purge valve
output
10 – 14 V
Ignition switch turned ON with engine
stop
✱
0 – 0.6 V
↑↓
10 – 14 V
(Repeated
indicator)
Engine running.
(Output signal is 9.8 Hz duty pulse.
Duty ratio varies depending on vehicle
condition.)
C51-2-2 BLK/ORN
Ground of ECM for ignition cir-
cuit
Below 0.3 V Ignition switch turned ON
C51-2-3 BLK/WHT Ignition switch signal
0 – 1 V Ignition switch turned OFF
10 – 14 V Ignition switch turned ON
TERMINAL
NUMBER
WIRE
COLOR
CIRCUIT
NORMAL
VOLTAGE
CONDITION