Hospitality Lighting Power Supply Circuit 3

HOSPITALITY LIGHTING POWER SUPPLY CIRCUIT 3

Description

Total illumination control unit provides the following illuminations power supply according to the battery saver signal from BCM.
- Trip computer switch
- Illumination control switch
- Multifunction switch
- Climate controlled seat switch
- LDW switch
- Snow mode switch
- Door mirror remote control switch
- AFS OFF switch
- Headlamp aiming switch
- Mode select switch
- Clock
- Steering switch
- IBA OFF switch
- DCA switch
- VDC OFF switch
- Automatic back door close switch


Diagnosis Procedure


CAUTION:
Check the following circuit first if the other room lamps (Map lamp, personal lamps, foot lamps, puddle lamps, 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 3 OUTPUT

CONSULT ACTIVE TEST
1.Turn ignition switch ON.
2.Set the illumination control switch in maximum.
3.Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.
4.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 3.

2. CHECK HOSPITALITY LIGHTING POWER SUPPLY 3 CIRCUIT FOR OPEN

1.Turn ignition switch OFF.
2.Disconnect the total illumination control unit connector and each illumination connectors.
3.Check continuity between total illumination control unit harness connector and each illumination harness connectors.





Does continuity exist?
YES- Hospitality lighting power supply 3 circuit is normal.
NO- Repair the harnesses or connectors.

3. CHECK HOSPITALITY LIGHTING POWER SUPPLY 3 CIRCUIT FOR SHORT

Check continuity between total illumination control unit harness connector and ground.





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