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6 DETECT MALFUNCTIONING PART
Check the following.
쐌 Harness connectors C3, B113 and B101, M67
쐌 Harness connectors M81, F36
쐌 Harness for open or short between vacuum cut valve bypass valve and ECM
䊳 Repair open circuit or short to ground or short to power in harness or connectors.
7 CHECK VACUUM CUT VALVE BYPASS VALVE
With CONSULT-II
1. Perform “VC/V BYPASS/V” in “ACTIVE TEST” mode.
2. Check air passage continuity and operation delay time under the following conditions.
SEF016Z
Without CONSULT-II
1. Check air passage continuity and operation delay time under the following conditions.
SEF351Q
MTBL0242
OK or NG
OK 䊳 GO TO 8.
NG 䊳 Replace vacuum cut valve bypass valve.
8 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-732.
䊳 INSPECTION END
DTC P1490 VACUUM CUT VALVE BYPASS VALVE (CIRCUIT)
VG33E
Diagnostic Procedure (Cont’d)
EC-1140
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