Suzuki Wagon R Manual page 2055

6-2-52 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
TERMINALS
E23-3 to E21-28
E21-4 to E21-5/6
E23-15 to E21-28
E23-14 to E21-28
E23-5 to E21-5/6
E22-5 to E21-5/6
E22-4 to E21-5/6
E23-17 to E21-5/6
E23-13 to E21-5/6
E22-6 to E21-5/6
E23-34 to E21-5/6
E23-33 to E21-5/6
E23-16 to E21-5/6
E23-4 to E21-28
E22-7 to E21-5/6
E23-8 to E21-5/6
E23-11 to E21-5/6
E22-2 to E22-3
Resistance Check
CIRCUIT
Heater of HO2S–2
Radiator fan relay
Main relay
Fuel pump relay
A/C condenser fan relay No.2 (if
equipped)
No.3 fuel injector
No.4 fuel injector
EGR valve (stepping motor No.1 coil)
EVAP canister purge valve
No.2 fuel injector
EGR valve (stepping motor No.2 coil)
EGR valve (stepping motor No.4 coil)
EGR valve (stepping motor No.3 coil)
Heater of HO2S–1
No.1 fuel injector
Idle air control valve
A/C compressor relay (if equipped)
Oil control valve
1) Disconnect ECM couplers (1) from ECM with ignition switch
OFF.
CAUTION:
Never touch terminals of ECM itself or connect voltmeter
or ohmmeter (2).
2) Check resistance between each pair of terminals of discon-
nected couplers as listed in the following table.
CAUTION:
• Be sure to connect ohmmeter probe from wire harness
side of coupler.
• Be sure to turn OFF ignition switch for this check.
• Resistance in table below represents that when parts
temperature is 20°C (68°F).
RESISTANCE
10.8 – 18.2
10.8 – 18.2
10.8 – 18.2
STANDARD CONDITION
Ω
4 – 15
Ω
160 – 240
Ω
160 – 240 Battery discon-
nected and ignition
switch ON
Ω
160 – 240
Ω
100 – 150
Ω
Ω
20 – 29
Ω
28 – 35
Ω
Ω
20 – 31
Ω
2 – 11
Ω
24 – 35 Ω
160 – 240 Ω
6 – 15 Ω
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