Resistance Check - Suzuki Grand Vitara XL-7 Service Manual

6-1-6 ENGINE DIAGNOSIS (RHZ ENGINE WITH TRIPLE-CONNECTOR ECM)
1. ECM / PCM coupler disconnected
2. Ohmmeter
TERMINAL
E229-2 to E229-9
E229-25 to E229-17
E229-26 to E229-18
E229-1 to E229-10
E228-4 to E228-3
E228-21 to E228-20
E228-1 to E228-14
E228-8 to E228-9
E228-37 to Body ground
E228-38 to Body ground
E227-32 to Body ground

Resistance Check

1) Disconnect couplers from ECM/PCM with ignition switch OFF.
CAUTION:
Do not 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 the following table.
CAUTION:
D Be sure to connect ohmmeter probe from wire harness
D Be sure to turn OFF ignition switch for this check.
D Resistance in table represents that when parts temper-
CIRCUIT
Fuel injector No.1
Fuel injector No.2
Fuel injector No.3
Fuel injector No.4
CKP sensor
Fuel temp. sensor
Fuel pressure regulator
ECT sensor
Ground
Ground
Ground
side of coupler.
ature is 20_C (68_F).
STANDARD
RESISTANCE
Max. 0.6 Ω
Max. 0.6 Ω
Max. 0.6 Ω
Max. 0.6 Ω
315 – 405 Ω
Refer to "FUEL TEMPERATURE SENSOR" in Section
6E3.
2 – 3 Ω
Refer to "ECT SENSOR" in Section 6E3.
Below 1.5 Ω
Below 1.5 Ω
Below 1.5 Ω
CONDITION
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At 20_C (68_F)
At 20_C (68_F)
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