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Diagnostic Procedure
NGEC0401
1 INSPECTION START
Do you have CONSULT-II?
YesorNo
Yes 䊳 GO TO 2.
No 䊳 GO TO 3.
2 CHECK COMPONENT
With CONSULT-II
1. Turn ignition switch OFF.
2. Remove vacuum cut valve and vacuum cut valve bypass valve as an assembly.
3. Apply vacuum to port A and check that there is no suction from port B.
4. Apply vacuum to port B and check that there is suction from port A.
5. Blow air in port B and check that there is a resistance to flow out of port A.
6. Turn ignition switch ON.
7. Select “VC/V BYPASS/V” in “ACTIVE TEST” mode with CONSULT-II and touch “ON”.
8. Blow air in port A and check that air flows freely out of port B.
9. Blow air in port B and check that air flows freely out of port A.
SEF808Y
OK or NG
OK 䊳 GO TO 4.
NG 䊳 GO TO 5.
DTC P1491 VACUUM CUT VALVE BYPASS VALVE
KA24DE
Diagnostic Procedure
EC-541
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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