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Nissan Sentra Service Manual: Battery saver output/power supply circuit

Nissan Sentra Service Manual / Driver controls / Interior lighting system / Dtc/circuit diagnosis / Battery saver output/power supply circuit

Description

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

Component function check

1.Check battery saver output/power supply function

Consult


  1. Turn ignition switch on.
  2. Turn each interior lamp to the ON position.
  1. Select battery saver of bcm (battery saver) active test item.
  2. 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 inl-43, "diagnosis procedure".

Diagnosis procedure

Regarding wiring diagram information, refer to inl-17, "wiring diagram".

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 and ground.

Is the inspection result normal?


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 bcs-73, "removal and installation" (with intelligent key) or bcs-126, "removal and installation" (without intelligent key).

2.Check battery saver output/power supply open circuit

  1. Turn ignition switch off.
  2. Disconnect the following connectors.
  1. Check continuity between bcm connector and each interior lamp connector.

Is the inspection result normal?


Is the inspection result normal? Yes >> go to 3.

No >> repair or replace the harness or connector.

3.Check battery saver output/power supply short circuit

Check continuity between BCM connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> Check that each interior room lamp has no internal short circuit.

NO >> Repair or replace the harness or connector.

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