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2004 Chevy Venture Interior light will not turn off when you put on drive or lock the doors. I have to use Interior Lamp Overide Switch to turn off the light.
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Interior lights and the power door locks are controlled by a electronic control module . Hooking up a factory or some other type professional scan tool an checking for codes an viewing input data to these control modules would be the first thing to do.
The interior lighting system consists of the following:
lighting control module (LCM)
driver door module (DDM)
instrument panel
dome/map combination
courtesy/reading lamps
orientation light
door lamps
footwell lamps
luggage compartment lamp
glove compartment lamp
vanity mirrors
door ajar switches
viewing wiring diagrams an checking power and ground circuits for these modules would be the next step if no codes were found . Principles of Operation
Lighting Control Module
This vehicle uses a lighting control module (LCM). The LCM is a microprocessor-based module that controls several vehicle subsystems, responds to electrical input signals from various switches, sensors, and external modules and is located on the LH side of the instrument panel. LCM subsystem functions include:
headlamps with autolamps
turn signal lamps/hazard flasher lamps
cornering lamps
parking lamps
daytime running lamps
interior lamps
demand lamps
battery saver
The LCM interfaces with the driver door module (DDM) via the standard corporate protocol (SCP) network for the illuminated entry feature.
The interior lamp is illuminated by pressing the individual interior lamp switch. The interior lamp is also illuminated by door ajar switches located in the door latches, when any door is opened. A theater lighting feature gradually increases or decreases the light intensity when switched by opening or closing a door.
The dome/map lamp combination are located on each side of the interior lamp. The map lamps are operated independently of the interior lamp by two switches located on the interior lamps.
The interior lamps are illuminated by holding the panel dim switch in the UP position until the dome lamps turn on. The interior lamp also illuminates when a door is opened and actuates the door ajar warning lamp switch in the door latch.
The front map lamps are powered by the demand lighting circuit and the interior lighting circuit.
The rear passenger reading lamps are incorporated into the rear seat assist handle and are located over the rear door openings. These lamps are illuminated through power supplied by the LCM demand lighting circuit.
Interior lamps (controlled by the LCM) are activated by using the dome lamp switch (instant ON/OFF response) or when a door is ajar. The following lamps illuminate for interior lighting:
instrument panel interior lamps
front map lamps
rear reading lamps
door lamps
Demand lighting includes lamps that are illuminated by the customer by directly actuating a switch. The front dome/map lamps are located in the overhead console. Each lamp is controlled by its own switch.
The following demand lamps are powered by the demand lighting output of the LCM:
glove compartment lamp
vanity mirror lamp
luggage compartment lamp
Each lamp has a dedicated switch that closes to ground to illuminate the lamp.
The front map lamps are powered by either the demand lighting circuit or the interior lighting circuit, depending upon the position of the switch associated with each lamp. When the customer turns the front map lamp switch ON, the front map lamp is illuminated through power supplied by the LCM demand lighting circuit. If the customer moves the map lamp switch to the OFF position, the power from the LCM demand lighting circuit is interrupted and the lamp is reconnected to the interior lighting circuit.
The rear reading lamps are powered by either the interior lighting circuit or the demand lighting circuit.
The luggage compartment lamp is controlled by the trunk ajar switch, and is powered by the demand lighting output from the LCM, and is mounted near the center of the upper rear panel.
The glove compartment lamp system consists of a glove compartment lamp switch and wire and miniature bulb assembly. Opening the glove compartment door closes the switch which provides power to the glove compartment lamp switch and wire. The glove compartment lamp switch is grounded to the body sheet metal.
The vanity mirror lamp system consists of a switch and bulb assembly in the RH inside visor and the LH inside visor. Lifting the vanity mirror cover closes the vanity mirror lamp switch and provides power to the lamps.
The illuminated entry system is controlled by the LCM and provides interior lighting upon entry to the vehicle.
Interior lamps will be illuminated for 25 (±1) seconds which includes a theater lighting ramp-up time (0.5 seconds). This time interval does not include the theater lighting ramp-down time. Interior lamps will be turned off before the 25 (±1)-second timeout if the ignition switch is turned to the RUN or ACC position.
The illuminated entry system has the following additions to accommodate the remote entry system: pressing the unlock button on the remote transmitter will activate the illuminated entry system (with theater ramp-up). When the driver door module detects a button press, it sends a signal on the J1850 communication network activating the interior lamps. The lighting control module will turn off the lamps by sensing the all doors lock signal.
The battery saver feature prevents excessive drain from loads inadvertently left on. When the ignition switch is turned OFF, power is interrupted to the interior lamps and headlamps (after a 10-minute timeout) and the demand lamps (after a 30-minute timeout).
The battery saver has the following inputs:
This switch is located in the overhead console switchbank. Press the symbol on the bottom of the switch to override control of the interior lamps and turn off power to the courtesy lamps, reading lamps, visor vanity lamps (if equipped) and glove box lamp. This feature allows you to have the lamps off when any door is open. Press the top of the interior lamps override switch to turn power back on to the interior lamps. This will allow the lamps to stay on when any door is open.
All of the interior lamps are powered thru the body computer. The power source is a 10amp fuse marked CTSY LAMP. The vanity mirror is on the same circuit with the lights for the door lock and power window switches.
sounds like water in somewhere ?? but where without my head under bonnet i couldnt say ,but its soaked something so perhaps it will be ok when it dries out
I don't have a solution, but a related problem. Our 2004 Chevy Venture power door locks are cycling (locking/unlocking) on their own while we are driving. This coincides with our remote keyless entry losing its effectiveness. I tried replacing the battery on the remote, but to no avail.
you have to take out the door ajar switch its in the door it works your
interior lights and door ajar switch which is in the door and is
hitched to the door latch
open the door and look on the side of door for little switch up and down ,it a safety switch ,little gray lever sticking out on the side of doors, move it up or down ,read decal on the door jam,hope to help robert b.
System warning lamp located on top of the instrument panel Press UNLOCK button once , turns on interior lamps and deactivates alarm (if fitted) Press UNLOCK button twice w/in 5 seconds unlocks all doors, turns on interior lamp and deactivates alarm (if fitted) To activate alarm system (if fitted): Switch ignition OFF Open driver's door Press Lock button on remote Close Driver door warning lamp will flash when system is activated Press remote power sliding door button will open sliding door (if fitted) only if unlocked first Pressing remote panic button: *Sounds horn intermittently *Flashes exterior lamps *Turns on interior lamps **Pressing panic for the second time OR switching ignition ON deactivates alarm.
PROGRAMMING
Remobe key from ignition switch Remove the "BCM PRGRM" fuse, from the fuse box Close all doors Turn ignition switch to the ACC position With in 1 SECOND , turn the ignition switch to OFF then back to 'ACC' (really, with in one second)
Open and close the driver's door. A chime will sound, indicating programming mode activated Press and HOLD LOCK and UNLOCK SIMULTANEOUSLY untill a chime sounds 2 times ( about 15 seconds) Repeat this exact procedure for all remotes to be programmed Remove key from ignition Refit 'BCM PRGRM' fuse.
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