Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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Did you replace the head lamp and panel dimmer switch?
yes it is built into one
Ok good .
I even changed the door switches
are you sure the other door jam switch isnt bad?
and is wiring ok to both?
changed them both
as far as I can tel;l
I bought it used
have been replacing parts as I see that they are bad
Ok all this circuit needs is a ground path to any part of it for the dome lights to remain on. How did the connection to the head lamp switch look? did it look like it had been hot before? or smell burnt?
the white housing that the bulb sits in looks discolored a little.
a lamp socket can do it easy
here is a updated bulletin on dome lamps.
This bulletin revises "Circuit Operation" on Page 8A-114-19 in the 1997 C/K Service Manual and Page 8A-114-17 in the 1998 C/K Service Manual.INTERIOR LAMPSCIRCUIT OPERATIONVoltage is supplied at all times from the CTSY Fuse 3 to the Courtesy Lamps, Dome and Reading Lamps, and IP Compartment Box Lamp. The Courtesy and Dome and Reading Lamps turn on when a ground path is provided by the Headlamp and Panel Dimmer Switch or one of the Door Jamb Switches.The IP Compartment Box Lamp and Vanity Lamps have switches that provide ground paths when the switches close.For Suburban and Utility Vehicles that are equipped with Power Door Locks the Rear Cargo Door Jamb Switch wire is ORN (1897) which comes off the Power Door Lock Control Module and the Base Body Rear Cargo Door Jamb Switch wire is PPL (328) which comes off the Connector C302 Cavity C.UNDERHOOD REEL LAMPVoltage is supplied at all times to the Underhood Reel Lamp from the HORN Fuse. When the switch is closed, a ground path is provided.COMPONENT ILLUMINATION LAMPSWhen the Headlamp and Panel Dimmer Switch is turned to the PARK or HEAD position, voltage is applied through the PARK LPS Fuse 9 and the closed contacts of the Headlamp and Panel Dimmer Switch to the Component Illumination Lamps. Since all of the Component Illumination Lamps are grounded through Ground G200, the lamps light.ILLUMINATED ENTRYWhen a door is opened, the Illuminated Entry System is activated. After the last door is closed, the Dome and Reading Lamps will remain illuminated for 20 seconds or until the Ignition Switch is turned on. Voltage is supplied to the module at all times through CTSY Fuse 3. The ground path is provided by CKT 150 to Ground G200. The module senses a ground signal from CKT 157 when a door is opened. The module then provides a ground path to CKT 156 which allows the lamps to light.
this isnt a new issue and they have testing for you.
ok something that I have noticed is that the glove box light comes on when it wants to, for example when I bump it
Do you have a diagram?
good eye. check it out also.
would that cause my dome light to stay on
if that circuit is grounded
it will provide a ground path for the dome light circuit.
sounds like I have a short
here is testing above
You almost have it do you have a diagram?
no I do not have a diagram
have been meaning to get a chiltons manual
if I disconect the light in glove box would that kill the circut
Well let me get you one or two click here on blue hyper link click on all blue hyper links I send you.
click here also if you dont find it as easy as we think its going to be here is testing http://ww2.justanswer.com/uploads/jettadan1/2012-04-18_015824_fullshot.pdf
If You have any questions at all even after accept let me know. Thats what I am here for. I will send you know in a couple of days to make sure you are progressing well.
after first accept no need for addition accepts if you follow up.
Thanks so much for following up with me. You are my first of many customers this morning but I wont be talking with anyone else until I re read our thread and reanswer your question adding info that may make it easier for tracking. I may after to ask you some questions though. As you are my eyes and hands. As promised no accept needed and thanks for the bonus last time.
I just wrote you answer and was sending and my exporer shut down. When I got it back all the info I typed was gone. Lol
Ok lets start withhead lamp and dimmer switch as you said it was discolored a bit.
Check pins in front to wires in back about 3 to 5 inches back when you probe into the wire with test pin please cover up with electrical tape to protect it. Check for continuity. Every pin. wiggleing to make sure there isnt a break that touches. Click here for connection ID of the headlamp switch. It will show you wire color, circuit number and cavity id.
I have seen in my site that you have a dome lamp switch in the middle of your IP also instrument panel. this may depend on what package you have from dealer but check it also.
Lets conform those finding first if at any time you question a circuit you can cut a piece of wire and use a jumper wire to complet the circuit to test operation.
need help on a 1999 Chevy K3500 pickup with a 7.4 L