Suzuki SY413 Service Manual page 3221

6E3-60 ELECTRONIC FUEL INJECTION SYSTEM (J18 ENGINE WITHOUT WU TWC)
1. ECM coupler disconnected
2. Ohmmeter
TERMINAL
A1 – D1 No.1 injector
A2 – D1 No.2 injector
HO2S heater (if equipped)
A3 – D20
and main relay
EVAP canister purge
A4 – D1
valve
A14 – D1 No.3 injector
A15 – D1 No.4 injector
A16 – D1 IAC valve
A19 – B8 ECT sensor
A21 – B8 IAT sensor
CO adjusting resistor
A22 – A7
(if equipped)
C2 – D1 EGR valve coil 1
C3 – D1 EGR valve coil 2
C4 – D1 EGR valve coil 3
C5 – D1 EGR valve coil 4
Radiator fan control relay
D8 – D20
and main relay
Fuel pump relay and main
D9 – D20
relay
RESISTANCE CHECK
1) Disconnect ECM couplers from ECM with ignition switch OFF.
2) Check resistance between each pair of terminals of discon-
nected couplers as listed in the following table.
STANDARD
CIRCUIT
RESISTANCE
10.8 – 13.2 W
10.8 – 13.2 W
10.8 – 13.2 W
10.8 – 13.2 W
8.6 – 10.6 W
303 – 326 W
2.21 – 2.69 kW
140 – 220 W
140 – 220 W
CAUTION:
Never touch terminals of ECM itself or connect volt-
meter or ohmmeter.
CAUTION:
Be sure to connect ohmmeter probe from wire har-
ness side of coupler.
Be sure to turn OFF ignition switch for this check.
Resistance in table represents that when parts tem-
perature is 20 C (68 F).
72 – 210 W
30 – 34 W
Engine coolant temperature: 80 C (176 F)
Intake air temperature: 20 C (68 F)
0 – 50 kW
21 – 23 W
21 – 23 W
21 – 23 W
21 – 23 W
CONDITION
—
—
—
—
—
—
—
—
—
—
—
—
—
—