Page 3665 of 5883
INL-14
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
BCM
BCM : Diagnosis ProcedureINFOID:0000000001728869
For information about power and ground inspection for the BCM, refer to BCS-30, "Diagnosis Procedure".
Page 3666 of 5883

INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
INL-15
< COMPONENT DIAGNOSIS >
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INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
DescriptionINFOID:0000000001728870
Provides the interior room lamp power supply. Also cuts the power supply when the interior room lamp battery
saver activating.
Component Function CheckINFOID:0000000001728871
1.CHECK INTERIOR ROOM LAMP POWER SUPPLY FUNCTION
CONSULT-III ACTIVE TEST
1. Turn ignition switch ON.
2. Turn each interior room lamp ON.
- Map lamp
- Interior room lamp
- Vanity mirror lamp (if equipped)
- Trunk room lamp
3. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
4. With operating the test items, check that each interior room lamp is turned ON/OFF.
Is the interior room lamp turned ON/OFF?
YES >> Interior room lamp power supply circuit is normal.
NO >> Refer to INL-15, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001728872
1.CHECK INTERIOR ROOM LAMP POWER SUPPLY OUTPUT
CONSULT-III ACTIVE TEST
1. Turn ignition switch ON.
2. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
3. With operating the test item, check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES >> GO TO 2
NO >> Replace BCM. Refer to XX-XX, "*****"
.
2.CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
- Map lamp
- Interior room lamp
- Vanity mirror lamp (driver side)(if equipped)
- Vanity mirror lamp (passenger side)(if equipped)
- Trunk room lamp
3. Check continuity between BCM harness connector and each interior room lamp harness connector.OFF : Interior room lamp OFF
ON : Interior room lamp ON
Te r m i n a l s
Te s t i t e m
Voltage (Approx.) (+) (−)
BCM
GroundBATTERY
SAVER
Connector Terminal
M20 73OFF 0V
ON Battery voltage
Page 3667 of 5883
INL-16
< COMPONENT DIAGNOSIS >
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
Does continuity exist?
YES >> GO TO 3
NO >> Repair the harnesses or connectors.
3.CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES >> Repair the harnesses or connectors.
NO >> Check that each interior room lamp has no internal short circuit.
BCM Each interior room lamp
Continu-
ity Connec-
torTerminal Connector Terminal
M20 73Map lamp R2 4
Existed Interior room lamp R7 3
Vanity mirror lamp
RHR10 1
Vanity mirror lamp
LHR9 1
Trunk room lamp B36 1
BCM
GroundContinuity
Connector Terminal
M20 73 Not existed
Page 3668 of 5883
INTERIOR ROOM LAMP CONTROL SYSTEM
INL-17
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INTERIOR ROOM LAMP CONTROL SYSTEM
Wiring Diagram - INTERIOR ROOM LAMP -INFOID:0000000001728876
ALLWA0124GB
Page 3669 of 5883
INL-18
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INTERIOR ROOM LAMP CONTROL SYSTEM
ALLWA0125GB
Page 3670 of 5883
INTERIOR ROOM LAMP CONTROL SYSTEM
INL-19
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ALLWA0126GB
Page 3671 of 5883
INL-20
< COMPONENT DIAGNOSIS >
ILLUMINATION
ILLUMINATION
Wiring Diagram - ILLUMINATION -INFOID:0000000001728877
ALLWA0122GB
Page 3672 of 5883
ILLUMINATION
INL-21
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ALLWA0123GB