Suzuki Swift User Manual page 193

2
1. ECM (PCM) coupler disconnected
2. Ohmmeter
TERMINALS
C01-7 to C03-6
C02-4 to C03-6
C01-9 to C02-5/6
C01-21 to C02-5/6
C01-31 to C02-5/6
C01-8 to C02-5/6
C02-2 to C02-5/6
C02-9 to C02-5/6
C02-8 to C02-5/6
C02-17 to C02-5/6
C01-4 to C02-5/6
C02-19 to C03-6
C02-1 to Body ground
C02-18 to C02-5/6
C02-10 to C02-7
C01-1 to Body ground
C01-2 to Body ground
C01-3 to Body ground
ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13) 6-1-37
Resistance Check
1) Disconnect ECM (PCM) couplers from ECM (PCM) with ignition
switch OFF.
CAUTION:
Never touch terminals of ECM (PCM) itself or connect
voltmeter or ohmmeter.
2) Check resistance between each terminal of couplers discon-
nected.
CAUTION:
D Be sure to connect ohmmeter probe from wire harness
1
side of coupler.
D Be sure to turn OFF ignition switch for this check.
D Resistance in table below represents that when parts
temperature is 20_C (68_F).
CIRCUIT
HO2S-1 heater
HO2S-2 heater
No.1 injector
No.2 injector
No.3 injector
No.4 injector
EGR valve (stepper motor coil 4)
EGR valve (stepper motor coil 3)
EGR valve (stepper motor coil 2)
EGR valve (stepper motor coil 1)
EVAP canister purge valve
Fuel pump relay
A/C control module
Radiator fan control relay
Main relay
Ground
Ground
Ground
STANDARD RESISTANCE
11.7 – 15.6 Ω
11.7 – 15.6 Ω
12.0 – 13.0 Ω
12.0 – 13.0 Ω
12.0 – 13.0 Ω
12.0 – 13.0 Ω
20 – 24 Ω
20 – 24 Ω
20 – 24 Ω
20 – 24 Ω
30 – 34 Ω
70 – 110 Ω
No continuity
70 – 110 Ω
70 – 110 Ω
Continuity
Continuity
Continuity