Nissan Sentra Service Manual: 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
- Turn ignition switch on.
- Turn each interior lamp to the ON position.
- Interior room lamp
- Vanity mirror lamps
- Map lamp
- Trunk room lamp
- Select battery saver of bcm (battery saver) active test item.
- 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
- Turn ignition switch on.
- Select battery saver of bcm (battery saver) active test item.
- While operating the test item, check voltage between BCM connector 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 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
- Turn ignition switch off.
- Disconnect the following connectors.
- Bcm
- Interior room lamp
- Vanity mirror lamp LH
- Vanity mirror lamp RH
- Map lamp
- Trunk room lamp
- Check continuity between bcm connector and each interior lamp connector.
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? YES >> Check that each interior room lamp has no internal short circuit.
NO >> Repair or replace the harness or connector.
Power supply and ground circuit
Bcm (body control system) (with intelligent key system)
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-51, "Wir ...
Interior room lamp control circuit
Description
Controls each interior room lamp (ground side) by pwm signal.
Note:
Pwm signal control period is approximately 250 hz (in the gradual
brightening/dimming).
Component function check
...
Other materials:
Corrosion protection
Description
To provide improved corrosion prevention, the following anti-corrosive
measures have been implemented in
NISSAN production plants. When repairing or replacing body panels, it is
necessary to use the same anti-corrosive
measures.
Anti-Corrosive Wax
To improve repairability and co ...
System initialization
Description
If any of the following operations are performed, the initialization is
necessary for normal operation of power
window system.
Disconnection and connection of battery cable from negative terminal.
When power window main switch replaced.
Electric power supply to power window m ...
A-bag branch line circuit
Diagnosis procedure
Warning:
Always observe the following items for preventing accidental
activation.
Before servicing, turn ignition switch off, disconnect battery
negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
Never use unspecified tester or other me ...
