Description
Controls each interior room lamp (ground side) by PWM signal.
NOTE: PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Component Function Check
CAUTION: Before performing the diagnosis, check that the following is normal.
1.CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT ACTIVE TEST
On : Interior room lamp gradual brightening
Off : Interior room lamp gradual dimming
Does the interior room lamp turns ON/OFF (gradual brightening/dimming)? YES >> Interior room lamp control circuit is normal.
NO >> Refer to INL-49, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT ACTIVE TEST
Is the inspection result normal? YES >> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to BCS-75, "Removal and Installation" (with Intelligent Key system) or BCS-135, "Removal and Installation" (without Intelligent Key system).
2.CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT
Is the inspection result normal? YES >> Replace map lamp or room lamp.
NO >> Repair or replace harnesses.
3.CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT
Is the inspection result normal? YES >> Replace BCM. Refer to BCS-75, "Removal and Installation" (with Intelligent Key system) or BCS- 135, "Removal and Installation" (without Intelligent Key system).
NO >> Repair or replace harnesses.
ECU diagnosis information
AUTOMATIC BACK DOOR CONTROL UNIT
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CONSULT MONITOR ITEM
TERMINAL LAYOUT
PHYSICAL VALUES
Fail Safe
DTC Inspection Priority Chart
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Control buttons
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Illumination
Wiring Diagram
...