Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual page 191

6-1-50 ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE)
TERMINAL WIRE
NUMBER COLOR
LT GRN/
C51-2-4
WHT
C51-2-5 LT GRN
C51-2-6 PNK/BLK Fuel injector No.2 output
C51-2-7 PNK
C51-2-8 BLK/GRN Ground for ECM
C51-2-9 BLK/BLU Ground for ECM
C51-2-10 BRN/YEL Ignition coil No.4 output
C51-2-11 BRN/WHT Ignition coil No.3 output
C51-2-12 BRN/BLK Ignition coil No.2 output
CIRCUIT
EGR valve (stepper motor coil
2) output (if equipped)
EGR valve (stepper motor coil
1) output (if equipped)
Fuel injector No.1 output
NORMAL
VOLTAGE
10 – 14 V Ignition switch turned ON
✱
0 – 1 V
While engine running.
↑↓
(Output signal is active low duty pulse.
8 – 14 V
Pulse generated time depending vehi-
(Repeated
cle condition)
indicator)
0 – 1 V Ignition switch turned ON
✱
0 – 1 V
While engine running.
↑↓
(Output signal is active low duty pulse.
8 – 14 V
Pulse generated time depending vehi-
(Repeated
cle condition)
indicator)
Ignition switch turned ON with engine
10 – 14 V
stop
✱
0 – 0.6 V
Engine running
↑↓
(Output signal is active low pulse. Pulse
10 – 14 V
frequency varies depending on engine
(Repeated
speed.)
indicator)
Ignition switch turned ON with engine
10 – 14 V
stop
✱
0 – 0.6 V
Engine running
↑↓
(Output signal is active low pulse. Pulse
10 – 14 V
frequency varies depending on engine
(Repeated
speed.)
indicator)
Below 0.3 V Ignition switch turned ON
Below 0.3 V Ignition switch turned ON
0 – 0.6 V Ignition switch turned ON
✱
0– 0.6 V
Engine running
↑↓
(Output signal is active high pulse.
2 – 4 V
Pulse frequency varies depending on
(Repeated
engine speed.)
indicator)
0 – 0.6 V Ignition switch turned ON
✱
0 – 0.6 V
Engine running
↑↓
(Output signal is active high pulse.
2 – 4 V
Pulse frequency varies depending on
(Repeated
engine speed.)
indicator)
0 – 0.6 V Ignition switch turned ON
✱
0 – 0.6 V
Engine running
↑↓
(Output signal is active high pulse.
2 – 4 V
Pulse frequency varies depending on
(Repeated
engine speed.)
indicator)
CONDITION