Suzuki GRAND VITARA XL-7 Owner's Manual page 203

6-1-42 ENGINE GENERAL INFORMATION AND DIAGNOSIS (H27 ENGINE)
TERMINALS
E61-9 and E61-2
E61-22 and C51-3-20
E61-23 and C51-3-20
C51-3-6 and Body ground
C51-3-17 and Body ground Ground
C51-1-1 and Body ground
C51-1-2 and Body ground
C51-1-4 and C51-3-4
C51-1-5 and C51-3-4
C51-1-8 and Body ground
C51-1-15 and C51-3-4
C51-1-16 and C51-3-4
C51-1-17 and C51-3-4
C51-2-1 and C51-3-4
C51-2-2 and C51-3-4
C51-2-4, C51-2-5 and E61-9 Heater of HO2S-1
C51-2-7 and Body ground
C51-2-8 and C51-3-4
C51-2-9 and C51-3-4
C51-2-12 and C51-3-4
C51-2-13 and C51-3-4
C51-2-14 and C51-3-4
C51-2-15 and C51-3-4
C51-2-16, C51- 2-17 and
E61-9
C51-2-21 and C51-3-4
C51-2-22 and C51-3-4
RESISTANCE CHECK
1) Disconnect couplers (1) from ECM/PCM with ignition switch
OFF.
CAUTION:
Never touch terminals of ECM/PCM itself or connect volt-
meter or ohmmeter (2).
2) Check resistance between each pair of terminals of discon-
nected couplers (1) as listed in following table.
CAUTION:
• Be sure to connect ohmmeter (2) 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 temper-
ature is 20°C (68°F).
CIRCUIT
Main relay
A/C fan motor relay (if equipped)
Fuel pump relay
Ground
Shift solenoid B (A/T)
Shift solenoid A (A/T)
IAC valve (stepper motor coil 2)
IAC valve (stepper motor coil 1)
TCC solenoid (A/T)
EVAP canister purge valve
IAC valve (stepper motor coil 4)
IAC valve (stepper motor coil 3)
Fuel injector No.2
Fuel injector No.1
Ground
Fuel injector No.4
Fuel injector No.3
EGR valve (stepper motor coil 4)
EGR valve (stepper motor coil 3)
EGR valve (stepper motor coil 2)
EGR valve (stepper motor coil 1)
Heater of HO2S-2
Fuel injector No.6
Fuel injector No.5
STANDARD CONDITION
RESISTANCE
79 – 95 Ω
75 – 110 Ω
Battery disconnected
and ignition switch ON
79 – 95 Ω
Continuity
Continuity
11 – 15 Ω
25.5 – 33.5 Ω
11 – 15 Ω
28 – 35 Ω
25.5 – 33.5 Ω
13 – 16 Ω
5.0 – 6.4 Ω
Continuity
13 – 16 Ω
20 – 24 Ω
11.7 – 14.3 Ω
13 – 16 Ω
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