Suzuki Swift Sport 2004 Service & Repair Manual page 243

Reference waveform No.32
VSS signal at 30 km/h (19 mph)
Measurement
CH1: "E23-25" to "C37-58"
terminal
Oscilloscope CH1: 5 V/DIV, CH2: 5 V/DIV
setting TIME: 40 ms/DIV
• After warmed up to normal
operating temperature
Measurement
condition
• Vehicle driving at 30 km/h (19
mph)
Resistance Check
1) Remove ECM from its bracket referring to "ECM Removal and Installation in Section 1C".
CAUTION
!
Never touch terminals of ECM itself or connect voltmeter or ohmmeter (2).
2) Connect special tool to ECM connectors securely.
NOTE
Do not connect the other connector of special tool to ECM.
3) Check resistance between each pair of terminals of disconnected connectors (1) 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 the following table represents that measured when parts temperature is 20 °C (68 °F).
Terminals
C37-47 to E23-29 Heater of HO2S-2
E23-46 to E23-1/16 Radiator cooling fan relay No.1
E23-60 to E23-29 Main relay
E23-15 to E23-29 Fuel pump relay
C37-16 to E23-1/16 No.3 fuel injector
C37-17 to E23-1/16 No.4 fuel injector
C37-4 to E23-1/16 EGR valve (stepping motor No.1 coil)
C37-29 to E23-1/16 EVAP canister purge valve
C37-2 to E23-1/16 No.2 fuel injector
Engine General Information and Diagnosis:
1. VSS signal for EPS control module
2. ON
3. OFF
1
2
Circuit
I4RS0A110086-02
Standard resistance
4 – 15 Ω
160 – 240 Ω
Battery disconnected
160 – 240 Ω
and ignition switch
turned ON
160 – 240 Ω
10.8 – 18.2 Ω
20 – 31 Ω
28 – 35 Ω
10.8 – 18.2 Ω
1A-193
I6RS0C110047-01
Condition
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