Diagnosis Procedure

CENTER CONSOLE INDIRECT ILLUMINATION CIRCUIT


Description






Controls the lamp (ground side) by PWM signal (duty).




CENTER CONSOLE INDIRECT ILLUMINATION CIRCUIT


Diagnosis Procedure

1.CHECK CENTER CONSOLE INDIRECT ILLUMINATION CONTROL OUTPUT
CONSULT-III ACTIVE TEST
1. Turn ignition switch ON.
2. Select "AMBIENCE LAMP" 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 5.
3.CHECK CENTER CONSOLE INDIRECT ILLUMINATION POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect the map lamp connector.
3. Turn ignition switch ON.
4. Check voltage between the map lamp harness connector and ground.





Is the measurement value normal?
YES - GO TO 4.
NO - Check the hospitality lighting power supply circuit 1. Refer to Hospitality Lighting Power Supply Circuit 1.
4.CHECK CENTER CONSOLE INDIRECT ILLUMINATION CONTROL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect the total illumination control unit connector.
3. Check continuity between the total illumination control unit harness connector and map lamp harness connector.





Does continuity exist?
YES - Replace the map lamp assembly.
NO - Repair the harnesses or connectors.
5.CHECK CENTER CONSOLE INDIRECT ILLUMINATION CONTROL CIRCUIT FOR SHORT
1. Turn ignition switch OFF.
2. Disconnect the total illumination control unit and map 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.