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Ask Dave Nova Your Own Question
Dave Nova
Dave Nova, Buick Technician
Category: Buick
Satisfied Customers: 1808
Experience:  ASE Master Certification. GM World Class Certification
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My interior lights quit working when I open my 03 buick

Customer Question

my interior lights quit working when I open my 03 buick lasabra,they work when I turn them on by hand. with the on off switch.
JA: Have you checked the fuses? Have you checked the bulbs?
Customer: yes I have.
JA: What is the model/year of your Buick?
Customer: the year is 2003 buick la sabre
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: I check the fuses, Icheck the two wireing connection points,the lights was working find until I install my headliner.
JA: Anything else you think the mechanic should know?
Customer: that's it.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Buick Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Buick
Expert:  Chad Farhat replied 1 year ago.

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question now, and I will post back with your reply ASAP

Expert:  Chad Farhat replied 1 year ago.

so when you set it to the middle for auto , or door opening , it stays off, but manually moving it to on it will come on

let look up the circuit for it

but it could be an issue with switch itself or the door ajar switch that tells it the door is open , you need to turn on now


Expert:  Chad Farhat replied 1 year ago.

2003 Buick LeSabre V6-3.8L VIN K

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Select Print Option Complete Article Text Only Image(s) Only

Parts Information OEM Part #Price

Door Switch & The

Door Jamb Switch is

Part Of Door Actuator.

this is the pin out for the parts involved can you have those checked ,

most likely the door jamb switch is stuck or bad, but in this model it is part of door lock actuator, which involves taking door panel off to get to it.

the courtesy light works manually so we know the bulb is good, but there is if u notice in the diagram that one pin is light control on the courtesy connector , this need to be checked also to confirm

Is this something You are trying to fix yourself or just have a idea what is going on .

just let me know , be glad to help you

Thank You ***** ( aka -Customer)

ASE Certified Tech