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On Board Diagnosis Logic
NGEC0875
Malfunction is detected when an improper voltage signal is sent to
ECM through vacuum cut valve bypass valve.
POSSIBLE CAUSE
NGEC0875S01
쐌 Harness or connectors
(The vacuum cut valve bypass valve circuit is open or shorted.)
쐌 Vacuum cut valve bypass valve
DTC Confirmation Procedure
NGEC0876
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch OFF and wait at least 5 seconds before
conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that bat-
tery voltage is more than 11V at idle speed.
SEF058Y
With CONSULT-II
1) Turn ignition switch ON.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Start engine and wait at least 5 seconds.
4) If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-1138.
With GST
Follow the procedure “With CONSULT-II”.
DTC P1490 VACUUM CUT VALVE BYPASS VALVE (CIRCUIT)
VG33E
On Board Diagnosis Logic
EC-1136
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