Battery Saver Output/Power Supply Circuit

BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

Description

Provides the battery saver output/power supply. Also cuts the power supply when the interior room lamp battery saver is activating.


Component Function Check


1. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION

CONSULT
1.Turn ignition switch ON.
2.Turn each interior room lamp ON:
-Front room/map lamp assembly
-Vanity lamps
-Personal lamp 2nd row
-Cargo lamp
3.Open the driver door to turn ON the following lamps:
-Front step lamps
-Foot lamps
-Front outside handle assembly lamps
4.Select BATTERY SAVER of BCM (BATTERY SAVER) active test item.
5. While operating the test item, check that each interior room lamp turns ON/OFF.
OFF: Interior room lamp OFF


ON: Interior room lamp ON
Is the inspection result normal?
YES- Battery saver output/power supply circuit is normal.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Interior Room Lamp Control System.

1. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT

CONSULT
1.Turn ignition switch ON.
2.Select BATTERY SAVER of BCM (BATTERY SAVER) active test item.
3.While operating the test item, check voltage between BCM connector M81 terminal 129 and ground.





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" Service and Repair.

2. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect the following connectors:
- BCM M81
-Front step lamp LH D11
Revision: March 20122013 Infiniti JX
-Front step lamp RH D109
-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 lamp 2nd row R106
3.Check continuity between BCM connector M81 terminal 129 and interior room lamp connector terminal in question.





Is the inspection result normal?
YES- GO TO 3
NO- Repair or replace harness or connectors.

3. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM connector M81 terminal 129 and ground.





Is the inspection result normal?
YES- Check that each interior room lamp has no internal short circuit.
NO- Repair or replace harness or connectors.
Revision: March 20122013 Infiniti JX