Personal Lamp Circuit

PERSONAL LAMP CIRCUIT





Description





Controls the lamp (ground side) by PWM signal (duty) when map lamp main switch is DOOR.




Component Function Check

CAUTION:
Before performing the diagnosis, check that the following items are normal.
- Hospitality lighting power supply 1 circuit (When both sides lamp are not turned ON.)
- Personal lamp bulbs
1.CHECK PERSONAL LAMP CONTROL FUNCTION
CONSULT-III ACTIVE TEST
1. Turn ignition switch ON.
2. Select "PERSONAL LAMP-RR" or "PERSONAL LAMP-RL" of TOTAL ILLUM C/U active test item.
3. While operating the test items, check personal lamps operation.





Are the personal lamps turned ON/OFF?
YES - Personal lamp circuit is normal.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK PERSONAL LAMP CONTROL OUTPUT
CONSULT-III ACTIVE TEST
1. Turn ignition switch ON.
2. Select "PERSONAL LAMP-RR" or "PERSONAL LAMP-RR" of TOTAL ILLUM C/U 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?
Fixed at 12 V-Replace the total illumination control unit.
Fixed at 0 V-GO TO 2.
2.CHECK THE SYMPTOM
Check that the lamp fixed to ON or OFF.
Fixed OFF-GO TO 3.
Fixed ON-GO TO 4.
3.CHECK PERSONAL LAMP CONTROL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect the total illumination control unit and personal lamp connectors.
3. Check continuity between the total illumination control unit harness connector and personal lamp harness connector.





Does continuity exist?
YES - Replace the personal lamp assembly.
NO - Repair the harnesses or connectors.
4.CHECK PERSONAL LAMP CONTROL CIRCUIT FOR SHORT
1. Turn ignition switch OFF.
2. Disconnect the total illumination control unit and personal lamp connectors.
3. Check continuity between the total illumination control unit harness connector and ground.





Does continuity exist?
YES - Repair the harnesses or connectors.
NO - Replace the total illumination control unit.