QX4 2WD V6-3.5L (VQ35DE) (2003)
Body Control Module: Description and Operation
Description
OUTLINE
The smart entrance control unit totally controls the following body electrical system operations.
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Headlamp auto light control system
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Warning chime
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Rear defogger and door mirror defogger timer
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Power door lock
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Remote keyless entry system
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Vehicle security system
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Interior lamp
In addition, the following timer operations are controlled by the smart entrance control unit.
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Battery saver control
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Retained power control
BATTERY SAVER CONTROL
Headlamps/Parking Lamps/License Lamps/Tail Lamps/Fog Lamps/Illumination Lamps
While the headlamps (including parking, license, tail, fog and illumination lamps) are turned ON by "1ST" or "2ND" of lighting switch, the exterior
lamp battery saver control is activated when the ignition switch signal changes from ON (or ACC) to OFF, and either one of LH or RH front door switch
ON signal is received. The headlamps (including parking, license, tail, fog and illumination lamps) are turned off after 5 minutes.
While the headlamps are turned ON by "AUTO" operation, the exterior lamp battery saver control is activated when the ignition switch is turned from
ON (or ACC) to OFF, and either LH or RH front door switch ON signal is input.
The smart entrance control unit controls timer activation as follows:
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When the door switch signal changes from ON to OFF while the exterior lamp battery saver is activated, the operation is discontinued, restarts and
lasts for 45 seconds, then the headlamps (including parking, license, tail, fog and illumination lamps) will be turned off.
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When the door switch signal changes from OFF to ON while the exterior lamp battery saver is activated, the operation is discontinued, restarts and
lasts for 45 seconds, then the headlamps will be turned off.
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When the one of four door switch signals changes from OFF to ON while the exterior lamp battery saver is activated, the operation is
discontinued, restarts and lasts for 5 minutes, then the headlamps (including parking, license, tail, fog and illumination lamps) will be turned off.
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When all the door switch ON signals are input while the exterior lamp battery saver is activated, the operation is discontinued, restarts and lasts for
45 seconds, then the headlamps (including parking, license, tail, fog and illumination lamps) will be turned off.
The "45" second timer's duration can be changed with the function setting mode of CONSULT-II.
Interior Lamp/Luggage Room Lamp/Spot Lamp/Vanity Mirror Illumination
The lamps turn off automatically when the interior lamp, spot lamp or/and vanity mirror illumination are illuminated with the ignition key in the OFF
position, if the lamp remains lit by the door switch open signal or if the lamp switch is in the ON position for more than 30 minutes.
After lamps are turned off by the battery saver system, the lamps illuminate again when:
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Door is locked or unlocked with keyfob or door lock/unlock switch or door key cylinder.
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Ignition switch ON.
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Door is opened or closed,
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Key is inserted or removed into ignition key cylinder.
Rear Window Defogger/Door Mirror Defogger
Rear window defogger and door mirror defogger are turned off in approximately 15 minutes after the rear window defogger switch is turned on.
RETAINED POWER CONTROL
When the ignition switch is turned to OFF (or ACC) position from ON or START position, the following systems can be operated for 45 seconds by the
RAP signal from the smart entrance control unit terminal 46.
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Electric sunroof
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Power window
The retained power operation is canceled when the driver or passenger side door is opened.