It operates each power window motor via corresponding power window switch and makes window move up/down when main power window and door lock/unlock switch is operated.
POWER SUPPLY AND GROUND CIRCUIT
POWER WINDOW MAIN SWITCH : Diagnosis Procedure
Main Power Window And Door Lock/Unlock Switch Power Supply Circuit Check
CHECK POWER SUPPLY CIRCUIT
Turn ignition switch ON.
Check voltage between main power window and door lock/unlock switch connectors and ground.
Is the measurement value within the specification?
YES >> GO TO 3
NO >> GO TO 2
CHECK HARNESS CONTINUITY
Turn ignition switch OFF.
Disconnect BCM and main power window and door lock/unlock switch.
Check continuity between BCM connector (A) and main power window and door lock/unlock switch connectors (B).
Check continuity between BCM connector (A) and ground.
Is the Inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
CHECK GROUND CIRCUIT
Turn ignition switch OFF.
Disconnect main power window and door lock/unlock switch.
Check continuity between main power window and door lock/unlock switch connector and ground.