1. ECM / PCM coupler disconnected
2. Ohmmeter
6-1-6
ENGINE DIAGNOSIS (RHZ ENGINE WITH TRIPLE-CONNECTOR ECM)
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
side of coupler.
D
Be sure to turn OFF ignition switch for this check.
D
Resistance in table represents that when parts temper-
ature is 20
_
C (68
_
F).
TERMINAL
CIRCUIT
STANDARD
RESISTANCE
CONDITION
E229-2 to E229-9
Fuel injector No.1
Max. 0.6
Ω
—
E229-25 to E229-17
Fuel injector No.2
Max. 0.6
Ω
—
E229-26 to E229-18
Fuel injector No.3
Max. 0.6
Ω
—
E229-1 to E229-10
Fuel injector No.4
Max. 0.6
Ω
—
E228-4 to E228-3
CKP sensor
315 – 405
Ω
At 20
_
C (68
_
F)
E228-21 to E228-20
Fuel temp. sensor
Refer to “FUEL TEMPERATURE SENSOR” in Section
6E3.
E228-1 to E228-14
Fuel pressure regulator
2 – 3
Ω
At 20
_
C (68
_
F)
E228-8 to E228-9
ECT sensor
Refer to “ECT SENSOR” in Section 6E3.
E228-37 to Body ground
Ground
Below 1.5
Ω
—
E228-38 to Body ground
Ground
Below 1.5
Ω
—
E227-32 to Body ground
Ground
Below 1.5
Ω
—
Содержание GRAND VITARA XL-7
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