Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual page 183

6-1-42 ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE)
1. ECM (PCM)
2. Connector (viewed from harness side)
TERMINAL WIRE
NUMBER COLOR
E61-1 WHT/GRN
E61-2 –
E61-3 PNK/BLU
E61-4 BRN
E61-5 YEL/BLU
E61-6 GRY
E61-7 WHT/BLK
E61-8 BLU
CIRCUIT
Fuel pump relay output (with-
out immobilizer control sys-
tem)
–
OD off signal output for cruise
control module (if equipped)
Engine revolution signal out-
put for tachometer
A/C condenser fan motor relay
(if equipped)
Throttle position signal for
cruise control module (if
equipped)
"OD OFF" lamp output (A/T
vehicle)
Main power supply relay out-
put
NORMAL
VOLTAGE
While 3 sec. after ignition switch turned
0 – 2.5 V
ON or while engine running
After ignition switch turned ON for 3
10 – 14 V
sec. or while engine stopping
–
Ignition switch turned ON, OD OFF
0 – 1 V
selector switch selected at OD OFF
Ignition switch turned ON, OD OFF
10 – 14 V
selector switch selected at OD ON
Ignition switch turned ON with engine
0 – 0.8 V
stop
✱
0 – 1 V
While engine running.
↑↓
(Output signal is pulse. Pulse frequency
8 – 14 V
varies depending on engine speed.
(Repeated
(3000 r/min = 100 Hz)
indicator)
Ignition switch turned ON, Engine cool-
10 – 14 V ant temperature under 115°C, 239°F or
A/C request signal high input
Ignition switch turned ON, Engine cool-
0 – 1 V ant temperature more than 114°C,
237°F or A/C request signal low input
Ignition switch turned ON (Output sig-
✱
0 – 0.6 V nal is 40 Hz active low duty pulse. Duty
↑↓
ratio varies as throttle valve is opened
8 – 12 V gradually.)
(Repeated Throttle opening 0% = 0.9ms ON duty
indicator) Throttle opening 100% = 9.2 ms ON
duty
Ignition switch turned ON, "OD OFF"
0 – 1 V
selector switch selected at OD OFF
Ignition switch turned ON, "OD OFF"
10 – 14 V
selector switch selected at OD ON
10 – 14 V Ignition switch turned OFF
0 – 2 V Ignition switch turned ON
CONDITION
–