Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual page 185

6-1-44 ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE)
TERMINAL WIRE
NUMBER COLOR
E61-23 PPL
E61-24 PPL/WHT
E61-25 PPL/RED
E61-26 BLU/ORN
E61-27 –
E61-28 GRN/BLK
E61-29 RED/YEL
E61-30 YEL
E61-31 GRN/WHT
E61-32 GRY/YEL
E61-33 GRY/RED
E61-34 PPL/YEL
E61-35 WHT
C51-3-1 BLU/YEL Vehicle speed sensor signal
CIRCUIT
Duty output terminal (if
equipped)
Immobilizer indicator lamp
output (if equipped)
Serial communication line of
data link connector 5 V (if
equipped)
Serial communication line of
data link connector 12 V (if
equipped)
Power steering pressure
switch signal
–
A/C request signal (if
equipped)
Electric load signal for clear-
ance lamp
Diagnosis switch terminal (if
equipped)
Electric load signal for stop
lamp
Ground for CO adjusting resis-
tor (if equipped)
Output of 5 V power source for
CO adjusting resistor (if
equipped)
MIL (Malfunction indicator
lamp) output
Power source for ECM internal
memory
NORMAL
VOLTAGE
0 – 1 V Ignition switch turned ON
10 – 14 V While engine running
Ignition switch turned ON with engine
0 – 1 V
stop
4 – 6 V Ignition switch turned ON
10 – 14 V Ignition switch turned ON
10 – 14 V Ignition switch turned ON
With engine running at idle speed, turn-
0 – 1 V ing steering wheel to the right or left as
far as it stop
–
Ignition switch turned ON, Blower fan
4 – 6 V selector selected OFF position or A/C
(High input) switch turned OFF or A/C evaporator
temp. less than 2.5°C, 36.5°F
Ignition switch turned ON, Blower fan
0 – 1 V selector selected ON position and A/C
(Low input) switch turned ON with A/C evaporator
temp. more than 4°C, 39.2°F
Ignition switch turned ON, Clearance
0 – 1 V
lamp not lighted up
Ignition switch turned ON, Clearance
10 – 14 V
lamp lighted up
10 – 14 V Ignition switch turned ON
Ignition switch turned ON, Stop lamp
0 – 1 V
not lighted up
Ignition switch turned ON, Stop lamp
10 – 14 V
lighted up
Below 0.3 V Ignition switch turned ON
4.5 – 5.5 V Ignition switch turned ON
Ignition switch turned ON with engine
0 – 2.5 V
stop
3.5 – 4.5 V Engine running
Ignition switch turned ON and turned
10 – 14 V
OFF
✱
0 – 1 V Vehicle running.
↑↓
(Sensor signal is pulse. Pule frequency
10 – 14 V varies depending on vehicle speed.
(Repeated (2590 pulses are generated par 60 km/
indicator) h, 37.5 ml/h))
CONDITION
–