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Interior dome and door courstesy lights intermittently flash
All interior dome lights and inside door courtesty lights flash intermittently when the car is running and shorts out the battery over time. What causes this problem and how do you fix it. I replaced the alternator and it still occurs.
Try changing the door jam switches,one or all of them lost their ground.When the doors are closed the switches ground and the lights go out.If they are on a timer device the timer may be defective.
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ARE YOU PARKED KEY OR KEY ON RUNNING.
SEE QUOTE PAGE32.
READ THE USERS GUIDE FREE IN THE GLOVE BOX
MINE 2010, DAY 1, I SET ALL LAMPS INSIDE TO DISABLED
THAT WAY NEVER COME BACK TO CAR WITH DEAD BATTERY NOW FOR 12 YEARS NOW, BY MY ACTS.
BUT MANUALS SWITCHES DO WORK.
This gets tricky with 3 switches in the car ,mine , 2 dome
and one on the head lamp lever.
even opening doors on mine, no dome lamp, by may settings, in the manual.
car run perfectly day or night ,correct?
one can say manual 2ways.]
at lever /button on dome.
or open any door is a manual act,
I disable every one allowed, by my needs. cover how in the guide
NO LED upgrades correct.?
mine the dome switches are on, off , auto, so I use off, and they never come on. ever.
on yours it is different PAGE 32 USERS GUIDE QUOTES, "To protect the battery, the interior lights will
turn off automatically 15 minutes after the
ignition is moved to the LOCK position.
THIS SAVES BATTERY IF THEY FAIL.(MY COMMENT)
"This
will occur if the interior lights were switched
on manually or are on because a door is open.
This includes the glove compartment light
and the cargo area light.
To restore interior
light operation, either place the ignition in
the ON/RUN position or cycle the light
switch."
THIS IS A SUPER GOOD FEATURE,. WRECKING $175 BATTERY IS NOT. CHEAP OR EVER FUN.
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:
I;m assuming that when you say short.... that the light is intermittent or sometimes flashing. Buy a can of Electronics cleaner and spray it into the switch located in the doorway. If that doesn't work then remove the lens from the interior light and spray all the contacts there. Hope this helps.
Some vehicles have a twist dashlight control and when it is turned to the extreme position it turns on the interior lights. Other vehicles have a separate switch for interior lights right on the dome light. Yet another type is a dome light with 3 selections that command the dome light to be on fulltime, or to be off fulltime, or the normal door opening triggering the switch.
Provided the problem is not any of the above, you could have a bad doorjam pin switch which is not separating its contacts when the door is closed. I would look at the drivers switch first as it has the most use.
the actuator for the dome light is actually located inside the lock mechanism. Have you checked to make sure the dome light override button is in the out position?
Did you check the switch next to the interior light on the roof? Honda's have a switch position that turns off the dome light completely, so it won't work when the doors are opened or not shut tightly. There are 3 positions, dome light on all the time, dome light on only when door is opened, or ajar, and dome light off. I must say, I love Honda's, but I find this switch annoying!
If it has automatic or a domelight that stays on for a while after you shut the door is on a timer relay and that is probably getting bad. As far as the door ajar message there is a switch in the door jam, look and see if you see it. Take wd40 and try to soak the switch try to get it inside the switch.If its incorporated in the door latch spray back inside the door latch real good. Open and close the door several times and see if it works then.
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