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Diagnostic Procedure
NGEC0817
1 INSPECTION START
Turn ignition switch OFF, and restart engine.
Is engine running?
YesorNo
Yes (With CONSULT-II) 䊳 GO TO 2.
Yes (Without CONSULT-
II)
䊳 GO TO 3.
No 䊳 GO TO 4.
2 CHECK OVERALL FUNCTION
With CONSULT-II
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-II.
2. Make sure that all circuits do not produce a momentary engine speed drop.
SEF981Z
OK 䊳 INSPECTION END
NG 䊳 GO TO 4.
3 CHECK OVERALL FUNCTION
Without CONSULT-II
1. Let engine idle.
2. Read the voltage signal between ECM terminal 1 and ground with an oscilloscope.
3. Verify that the oscilloscope screen shows the signal wave as shown below.
SEC073C
OK 䊳 INSPECTION END
NG 䊳 GO TO 4.
IGNITION SIGNAL
VG33E
Diagnostic Procedure
EC-1164
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