
K
Inspection of vacuum circuit (7M-GTE only).
Turn ignition switch off.
VACUUM HOSE
Are there cracks or other damage on the
vacuum hose?
No
Yes
Replace vacuum hose.
VACUUM SWITCH
No
INSPECT VACUUM SWITCH CIRCUIT
Disconnect connector from vacuum switch.
Is there continuity between terminal 1 of
vacuum switch and body ground?
No
• Vacuum switch improperly installed.
• Body ground faulty.
Yes
INSPECT VACUUM SWITCH OPERATION
Is vacuum switch normal?
(See page BE-84)
No
Replace vacuum switch.
Yes
VACUUM PUMP
INSPECT GROUND CONNECTION
Disconnect connector from vacuum pump.
Is there continuity between terminal 2 of wire
harness side connector and body ground?
No
• Open circuit in wire harness between
terminal 2 and body ground.
• Body ground faulty.
Yes
INSPECT VACUUM PUMP OPERATION
Is vacuum pump operation normal?
(See page BE-84)
No
Replace vacuum pump.
Yes
Connect connector to vacuum switch and
pump.
CONTINUED ON NEXT PAGE