Room Lamp Request Signal Circuit

ROOM LAMP REQUEST SIGNAL CIRCUIT





Component Function Check
1.CHECK ROOM LAMP TIMER SETTING
CONSULT-III WORK SUPPORT
1. Select "SET I/L D-UNLCK INTCON" of BCM (INT LAMP) work support item.
2. Check the setting status.





Is the setting "On"?
YES - GO TO 2.
NO - Change the setting to "On"
2.CHECK ROOM LAMP TIMER SIGNAL BY CONSULT-III
CONSULT-III DATA MONITOR
1. Turn ignition switch OFF.
2. Select "ROOM LAMP REQ" of TOTAL ILLUM C/U data monitor item.
3. While operating the door lock/door unlock, check the monitor status.





Is the item status normal?
YES - Room lamp timer signal circuit is normal.
NO - .




Diagnosis Procedure


1.CHECK ROOM LAMP TIMER SIGNAL INPUT
CONSULT-III ACTIVE TEST
1. Turn ignition switch ON.
2. Select "INT LAMP" of BCM (INT LAMP) active test item.
3. While operating the test items, check voltage between total illumination control unit harness connector and ground.





Is the measurement value normal?
YES - Replace the total illumination control unit.
NO - GO TO 2.
2.CHECK ROOM LAMP TIMER SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect the total illumination control unit and BCM connectors.
3. Check continuity between the total illumination control unit harness connector and BCM harness connector.





Does continuity exist?
YES - GO TO 3.
NO - Repair the harnesses or connectors.
3.CHECK ROOM LAMP TIMER SIGNAL FOR SHORT
Check continuity between the total illumination control unit harness connector and ground.





Does continuity exist?
YES - Repair the harnesses or connectors.
NO - Replace the BCM.