Diagnosis Procedure
- CHECK INTERIOR ROOM LAMP POWER SUPPLY OUTPUT
CONSULT ACTIVE TEST
- Turn ignition switch OFF.
- Disconnect the following connectors.
- Personal lamp
- Map lamp
- Foot lamp (both sides)
- Front kicking plate lamp (both sides)
- Trunk room lamp
- Step lamp (ALL)
- Outside handle lamp (both sides)
- Vanity mirror lamp (both sides)
- Turn ignition switch ON.
- Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.
- With operating the test item, check voltage between BCM harness connector and ground.
BCM
(-)
Test item
Voltage
(Approx.)
(+)
Connector
Terminal
M122
56
Ground
BATTERY SAVER
Off
0 V
On
12 V
Is the inspection result normal?
YES
GO TO 2.
NO
GO TO 3.
- CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT
- Turn ignition switch OFF.
- Disconnect the BCM connector.
- Check continuity between BCM harness connector and each interior room lamp harness connector.
BCM
Each interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M122
56
Personal lamp
R14
1
Existed
Map lamp
R15
Foot lamp
(driver side)
M186
Foot lamp
(passenger side)
M114
Front kicking plate lamp
(driver side)
B601
Front kicking plate lamp
(passenger side)
B603
Trunk room lamp
B47
Step lamp
(driver side)
D12
Step lamp
(passenger side)
D42
Step lamp
(Rear LH)
D57
Step lamp
(Rear RH)
D77
Outside handle lamp
(driver side)
D17
3
Outside handle lamp
(passenger side)
D47
Vanity mirror lamp (driver side)
R12
2
Vanity mirror lamp (passenger side)
R13
Is the inspection result normal?
YES
Check for internal short circuit of each interior room lamp.
NO
Repair or replace harnesses.
- CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT
- Turn ignition switch OFF.
- Disconnect the BCM connector.
- Check continuity between BCM harness connector and ground.
BCM
Ground
Continuity
Connector
Terminal
M122
56
Not existed
Is the inspection result normal?
YES
Replace BCM. Refer to Removal and Installation .
NO
Repair or replace harnesses.