Battery saving feature?

[QX4ME]

I remember my 96 Maxima did the same: after I leave the QX4 driver door open for a certain time, both dome light and the front personal light power are down (no matter their switches are on or off). As soon as I close the door, their power is recovered.

It is only the interior lights. The battery saver described in the user's manual is different and is for the exterior lights (headlight).

[alexf20c]

the battery saver feature shuts off EVERYTHING, not just the interior lights

[QX4ME]

the battery saver feature shuts off EVERYTHING, not just the interior lights

Before I re-closed the driver door, I tried turning on and off the headlight and found they were still working, and the interior lights were still off with their switches on. Then I closed the driver door, then interior lights came on. I verified this after I read your post.

Battery saver feature in the manual is for exterior like "...after 5 minutes lights automatically turn off...". For the interior lights, it takes about 40 minutes to turn off themselve after the driver door is left open.

You are right the battery saver is for everything, but under different conditions.

[Pwnin O'Brien]

INTERIOR LAMP BATTERY SAVER

The lamp turns off automatically when interior lamp, luggage room lamp, spot lamp and/or vanity mirror illumination is illuminated with the ignition key is in OFF position, if the lamp remains lit by the door switch open signal or if the lamp switch is in ON position for more than 30 minutes. After lamps turn OFF by the battery saver system, the lamps illuminate again when:- driver’s door is locked or unlocked- door is opened or closed- key is removed from ignition key cylinder or inserted in ignition key cylinder.

The following interior lights are controlled by the interior battery saver (which is operated by SECU):

- Interior Lamp- Spot Lamps- Vanity Mirror Lamps- Luggage Room Lamps

-----------------------------------------------------------------------------------------------------EXTERIOR LAMP BATTERY SAVER CONTROL-- Except for Auto Light Control Operation --

Headlamps will remain on for a short while after the ignition switch is turned from ON (or ACC) to OFF. Continuity between terminals 21 and 22, and between terminals 59 and 60 of smart entrance control unit will be disturbed after 5 minutes, then the headlamps will be turned off. When the lighting switch is turned from OFF to 2ND after headlamps are turned to off by the exterior lamp battery saver control, ground is supplied to smart entrance control unit terminals 20 and 58 from lighting switch terminal 11, and then, to headlamp LH and RH relays terminal 2 from smart entrance control unit terminals 21 and 59, through smart entrance control unit terminals 22 and 60 and through lighting switch terminal 12. Then headlamps illuminate again.

-- Auto light control operation --While the headlamps are turned ON by “AUTO” operation, the exterior lamp battery saver is activated for 5 minutes when the ignition switch is turned from ON (or ACC) to OFF, and either LH or RH front door switch is opened. The smart entrance control unit controls exterior lamp battery saver activation as follows:

- When the door switch signal changes from ON to OFF while the exterior lamp battery saver is activated, the operation is discontinued, and restarts and lasts for 45 seconds, then the headlamps will be turned off.

- When the door switch signal changes from OFF to ON while the exterior lamp battery saver is activated, the operation discontinued, restarts and lasts for 45 seconds, then the headlamps will be turned off.

- When the one of four door switch signals changes from OFF to ON while the exterior lamp battery saver GI is activated, the operation is discontinued, restarts and lasts for 5 minutes, then the headlamps will be turned off.- When all the door switch ON signals are input while the exterior lamp battery saver is activated, the saver is discontinued and restarts and lasts for 45 seconds, then the headlamps will be turned off.
Modified by Pwnin O'Brien at 12:07 PM 1/1/2010

[QX4ME]

Is it in some other document than the user's manual?

Thanks for the info.

[Pwnin O'Brien]

Is it in some other document than the user's manual?

Thanks for the info.

Yeah, everything from that above post is straight from the factory service manual.