Suzuki Engine 2002 GRAND VITARA SQ625, Руководство по обслуживанию

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ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE) 6-1-47
C51-3-19 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 1 Hz active low duty
pulse. Duty ratio varies depending on
ECT.)
ECT 40°C = 45% ON duty
ECT 120°C = 85% ON duty
C51-3-20 GRY/YEL Ground for sensors Below 0.3 V Ignition switch turned ON
C51-3-21 GRY/YEL Ground for sensors Below 0.3 V Ignition switch turned ON
C51-3-22 ORN/BLK
Engine coolant temp. (ECT)
sensor signal
3.7 – 3.85 V
Ignition switch turned ON, ECT at 0°C,
32°F
1.45 – 1.6 V
Ignition switch turned ON, ECT at 50°C,
122°F
0.4 – 0.5 V
Ignition switch turned ON, ECT at
100°C, 212°F
C51-3-23 PPL/WHT
Mass air flow (MAF) sensor
signal 1.0 – 1.6 V
Ignition switch turned ON with engine
stop
1.7 – 2.0 V While engine running with idle speed
C51-3-24 RED/YEL
Oxygen signal of heated oxy-
gen sensor-2 (Bank 2) (if
equipped)
0.5 – 1.5 V Ignition switch turned ON
✱
Deflects
between
over 1.2 V
and under
0.6 V
While engine running at 2,000 r/min. for
1min. or longer after warmed up
C51-3-25 BLK/GRN Ground for ECM Below 0.3 V Ignition switch turned ON
C51-3-26 BLK/BLU Ground for ECM Below 0.3 V Ignition switch turned ON
C51-1-1 GRN/RED Shift solenoid-B output for A/T 0 – 1 V Ignition switch turned ON
C51-1-2 GRN/YEL
Torque converter clutch (TCC)
solenoid output for A/T
0 – 1 V
Ignition switch turned ON, A/T Lock-up
not operated
10 – 14 V
Ignition switch turned ON, while A/T
Lock-up operated
C51-1-3 RED
“R” position signal for trans-
mission range selector switch
(A/T)
10 – 14 V
Ignition switch turned ON, Selector
switch selected at “R” position
0 – 1 V
Ignition switch turned ON, Selector
switch selected at other than “R” posi-
tion
C51-1-4 ORN/GRN
“P” position signal for trans-
mission range selector switch
(A/T)
10 – 14 V
Ignition switch turned ON, Selector
switch selected at “P” position
0 – 1 V
Ignition switch turned ON, Selector
switch selected at other than “P” posi-
tion
C51-1-5 ORN/WHT 4WD Low (4L) switch signal
0 – 1 V
Ignition switch turned ON, Transfer
selector lever selected at “4L” position
10 – 14 V
Ignition switch turned ON, Transfer
selector lever selected at “4H” or “2H”
position
C51-1-6 GRN Shift solenoid-A output for A/T 10 – 14 V Ignition switch turned ON
TERMINAL
NUMBER
WIRE
COLOR
CIRCUIT
NORMAL
VOLTAGE
CONDITION