Tail Lamp Signal Circuit

TAIL LAMP SIGNAL CIRCUIT

Description

Total illumination control unit inputs tail lamp signal from IPDM E/R.


Component Function Check

NOTE:
Check the tail lamp circuit if the tail lamp is not turned ON. Tail Lamp Circuit.

1. CHECK TAIL LAMP SIGNAL INPUT WITH CONSULT

CONSULT DATA MONITOR
1.Turn ignition switch ON.
2.Select "TAIL LAMP SIGNAL" of TOTAL ILLUM C/U data monitor item.
3.While operating the lighting switch, check the monitor status.





Is the measurement value normal?
YES- Tail lamp signal circuit is normal.
NO- .


Diagnosis Procedure


1. CHECK TAIL LAMP INPUT SIGNAL

CONSULT ACTIVE TEST
1.Turn ignition switch ON.
2.Select "EXTERNAL LAMPS" of IPDM E/R active test item.
3.While operating the test item, check the voltage between the total illumination control unit and ground.





Is the measurement value normal?
YES- Replace the total illumination control unit.
NO- GO TO 2.

2. CHECK TAIL LAMP SIGNAL CIRCUIT FOR OPEN

1.Turn ignition switch OFF.
2.Disconnect the IPDM E/R harness connector and total illumination harness connector.
3.Check continuity between the IPDM E/R harness connector and total illumination harness connector.





Does continuity exist?
YES- GO TO 3.
NO- Repair the harnesses or connectors.

3. CHECK TAIL LAMP SIGNAL CIRCUIT FOR SHORT

Check continuity between the total illumination control unit and ground.





Does continuity exist?
YES- Repair the harnesses or connectors.
NO- Replace the IPDM E/R.