Hospitality Lighting Power Supply Circuit 1

HOSPITALITY LIGHTING POWER SUPPLY CIRCUIT 1





Description
Total illumination control unit provides the following lamps power supply according to the battery saver signal from BCM.
- Mood lamps (rear door armrest)
- Foot lamps
- Map lamps
- Center console indirect illumination (Ambience lamp)
- Personal lamps
- Vanity mirror lamps
- Push-button ignition switch illumination




Diagnosis Procedure

CAUTION:
Check the following circuit first if the other room lamps (Puddle lamps, push-button ignition switch illumination, etc.) are not turned ON.
- Power supply and ground circuit of total illumination control unit: Total Illumination Control Unit.
- Battery saver signal circuit: Battery Saver Signal Circuit.
1.CHECK HOSPITALITY LIGHTING POWER SUPPLY 1 OUTPUT
CONSULT-III ACTIVE TEST
1. Turn ignition switch ON.
2. Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.
3. While operating the test item, check voltage between total illumination control unit harness connector and ground.





Is the measurement value normal?
YES - GO TO 2.
NO - GO TO 4.
2.CHECK HOSPITALITY LIGHTING POWER SUPPLY 1 CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
- Total illumination control unit
- Roof module
- Foot lamp (driver side)
- Foot lamp (passenger side)
- Mood lamp (rear door armrest LH)
- Mood lamp (rear door armrest RH)
- Push-button ignition switch
3. Check continuity between total illumination control unit harness connector and each lamp harness connectors.





Does continuity exist?
YES - GO TO 3.
NO - Repair the harnesses or connectors.
3.CHECK ROOF MODULE CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
- Map lamp
- Vanity mirror lamp (LH)
- Vanity mirror lamp (RH)
- Personal lamp
3. Check continuity between the roof module harness connector and each lamp harness connectors.





Is the measurement value normal?
YES - Hospitality lighting power supply 1 circuit is normal.
NO - Repair the harnesses or connectors.
4.CHECK HOSPITALITY LIGHTING POWER SUPPLY 1 CIRCUIT FOR SHORT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
- Total illumination control unit
- Roof module
- Foot lamp (driver side)
- Foot lamp (passenger side)
- Mood lamp (rear door armrest LH)
- Mood lamp (rear door armrest RH)
- Push-button ignition switch
3. Check continuity between total illumination control unit harness connector and ground.





Does continuity exist?
YES - Repair the harnesses or connectors.
NO - GO TO 5.
5.CHECK ROOF MODULE CIRCUIT FOR SHORT
1. Disconnect the following connectors.
- Map lamp
- Vanity mirror lamp (LH)
- Vanity mirror lamp (RH)
- Personal lamp
2. Check continuity between roof module harness connector and ground.





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