1.COMBINATION SWITCH INSPECTION Check the combination switch. Refer to Symptom Table. Is the combination switch normal? YES>>GO TO 2. NO>>Repair or replace the malfunctioning part.
2.CHECK TAIL LAMP RELAY REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR

1. Select "TAIL & CLR REQ" of IPDM E/R data monitor item.
2. With operating the lighting switch, check the monitor status.

Monitor item | Condition | Monitor status
TAIL & CLR REQ | Lighting switch | 1ST | On
OFF | Off

Is the item status normal?
YES>>GO TO 3.
NO>>Replace BCM.
3.TAIL LAMP CIRCUIT INSPECTION
Check the tail lamp circuit. Refer to Component Function Check.
Is the tail lamp circuit normal?
YES>>Replace IPDM E/R.
NO>>Repair or replace the malfunctioning part.