By using a feature called inadvertent power control, the
body control module (BCM) supplies power to all of the following components:
| • | The glove compartment lamp |
| • | The rear compartment lamp |
The left front door ajar switch turns the interior lamps on through
the BCM by grounding CKT 394. When the left front door is open, the
switch is closed. This condition provides a ground and a door open input to
the BCM. The BCM then grounds the following lamps in order to turn the lamps
on:
The right front door ajar switch and the rear door ajar switches turn
the interior lamps on by grounding CKT 395 from the BCM. When the ignition
key is removed from the lock cylinder, the interior lamps remain on for approximately
40 seconds.
The BCM provides an interior lamps-on delay after a door is opened.
The lamps remain on for approximately 40 seconds or until the ignition
switch is turned to the RUN position. The 40 second lamps-on delay
reduces to 4 seconds if a door is opened within 2 minutes of
the ignition switch being moved from the RUN position. The interior lamps
immediately turn off when the vehicle begins to move.
The dome lamp OFF-DOOR-ON switch controls the dome lamp. When the switch
is in the OFF position, the dome lamp remains off. When the switch is in the
DOOR position, the dome lamp lights when a door is opened. When the switch
is in the ON position, the dome lamp lights without turning on the courtesy
lamps. The rear view mirror reading lamps are controlled by the rear view
mirror reading lamps switch.
When a door unlock signal or a trunk release signal is received by the
remote control door lock receiver, the remote control door lock receiver signals
the BCM to turn the interior lamps on by momentarily grounding
CKT 395.
Voltage is supplied at all times through the INT LPS fuse to the BCM.
The BCM then supplies voltage to the inadvertent power control at all times.
Voltage is supplied at all times through the AUX PWR/CIGAR fuse to the
auxiliary power outlet and the cigar lighter.
Battery Run Down Protection
The inadvertent power control output of the BCM supplies voltage to
the following components:
| • | The glove compartment lamp |
| • | The rear compartment lamp |
When the ignition switch is in the OFF position, the output timer turns
the power to all of the above lamps off after 18-22 minutes.
Reset the inadvertent power control output by performing one of the
following actions:
| • | Turn the ignition switch to the RUN position. |
| • | Turn off any interior lamps that may be on. |
