Interior Lighting System (Circuit Diagnosis)
- CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT
CONSULT
- Turn ignition switch ON.
- Select BATTERY SAVER of BCM (BATTERY SAVER) active test item.
- While operating the test item, check voltage between BCM connector M81 terminal 129 and ground.
(+)
(-)
Test item
Voltage
(Approx.)
Connector
Terminal
BATTERY SAVER
M81
129
Ground
OFF
Battery voltage
ON
0 V
Is the inspection result normal?
YES
GO TO 2.
NO
Replace BCM after making sure battery saver output/power supply circuit is not shorted to voltage. Refer to Removal and Installation .
- CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT
- Turn ignition switch OFF.
- Disconnect the following connectors:
- BCM M81
- Front step lamp LH D10
- Front step lamp RH D108
- Front outside handle assembly LH D15
- Front outside handle assembly RH D115
- Foot lamp LH M99
- Foot lamp RH M100
- Front room/map lamp assembly R107
- Vanity lamp LH R103
- Vanity lamp RH R102
- Cargo lamp R104
- Personal lamps 2nd row R106
- Automatic back door close switch D560
- Check continuity between BCM connector M81 terminal 129 and interior room lamp connector terminal in question.
BCM
Each interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M81
129
Front step lamp LH
D10
1
Yes
Front step lamp RH
D108
1
Front outside handle assembly LH
D15
3
Front outside handle assembly RH
D115
3
Foot lamp LH
M99
1
Foot lamp RH
M100
1
Front room/map lamp assembly
R107
8
Vanity lamp LH
R103
1
Vanity lamp RH
R102
1
Cargo lamp
R104
2
Personal lamps 2nd row
R106
2
Automatic back door close switch
D560
3
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness or connectors.
- CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT
Check continuity between BCM connector M81 terminal 129 and ground.
Connector
Terminal
--
Continuity
M81
129
Ground
No
Is the inspection result normal?
YES
Check that each interior room lamp has no internal short circuit.
NO
Repair or replace harness or connectors.