Suzuki Canvas SQ416 Service Manual page 75

1. ECM / PCM coupler disconnected
2. Ohmmeter
M/T VEHICLE
TERMINALS
A3 – A1 Main relay
A13 – B15 Fuel pump relay
A26 – B15 A / C fan motor relay (if equipped)
D1 – B8 Fuel injector No.2
D2 – B8 Fuel injector No.1
D3 – B8 IAC valve (stepper motor coil 2)
D4 – B8 IAC valve (stepper motor coil 1)
EGR valve (stepper motor coil 2,
D7 – B8
if equipped)
EGR valve (stepper motor coil 1,
D8 – B8
if equipped)
D9 – B15 Heater of HO2S (if equipped)
D12 – B8 Fuel injector No.4
D13 – B8 Fuel injector No.3
D14 – B8 IAC valve (stepper motor coil 4)
D15 – B8 IAC valve (stepper motor coil 3)
EGR valve (stepper motor coil 4,
D18 – B8
if equipped)
EGR valve (stepper motor coil 3,
D19 – B8
if equipped)
D20 – B8 EVAP canister purge valve
A2 – Body ground Ground
A14 – Body ground Ground
A15 – Body ground Ground
ENGINE AND EMISSION CONTROL SYSTEM (G16 / J20 ENGINE) 6E1-7
Resistance Check
1) Disconnect 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 pair of terminals of discon-
nected couplers as listed in 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 represents that when parts temper-
ature is 20 C (68 F).
CIRCUIT
STANDARD RESISTANCE
79 – 95 W
79 – 95 W
75 – 110 W
13 – 16 W 16 W
13
35 – 43 W 43 W
35
24 W
20 – 24 W
20
11.7 – 14.3 W
13 – 16 W 16 W
13
35 – 43 W 43 W
35
20 – 24 W 24 W
20
28 – 35 W
Continuity
Continuity
Continuity
CONDITION
Battery disconnected and
ignition switch ON