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99 Chrysler 300 M electrical gremlins? #1565379 01/19/14 12:03 PM 01/19/14 12:03 PM
Joined: Jan 2003 Posts: 25,962 United Socialist States of Ame... T tboomer OP Too Many Posts
tboomer OP Too Many Posts T Joined: Jan 2003 Posts: 25,962 United Socialist States of Ame...	A good friends son-in-law has a 300M that is having electrical problems. He is pretty upset and is about to scrap the car. I told him that I would take it off his hands for that price! It seems that the headlights will come on at random all times of day or night. Talked to my racin buddy Lonemopar and he has seen this happen with the mini-vans of that era. Sounds like all it needs is a new headlight switch? Could it be that simple? Thanks!! Ted Need your rear end checked out? Contact Grizzly!!

Re: 99 Chrysler 300 M electrical gremlins? [Re: tboomer] #1565380 01/19/14 12:25 PM 01/19/14 12:25 PM
Joined: Feb 2005 Posts: 4,361 swamps of florida B beepsalot master
beepsalot master B Joined: Feb 2005 Posts: 4,361 swamps of florida	if the headlight switch doesn't work, look to the headlight control module, and the newer headlight systems ground thru the headlight switch. Just Follow Me Down the Street, You'll Know i'm Up to No Good...

Re: 99 Chrysler 300 M electrical gremlins? [Re: tboomer] #1565381 01/19/14 01:18 PM 01/19/14 01:18 PM
Joined: Oct 2005 Posts: 4,954 WI Dcuda69 master
Dcuda69 master Joined: Oct 2005 Posts: 4,954 WI	We had a 2000 LHS that had a headlight switch put in under warranty because of similar conditions

Re: 99 Chrysler 300 M electrical gremlins? [Re: beepsalot] #1565382 01/19/14 01:19 PM 01/19/14 01:19 PM
Joined: Apr 2004 Posts: 2,415 Connecticut Ron_M top fuel
Ron_M top fuel Joined: Apr 2004 Posts: 2,415 Connecticut	There is a phenomenon in those cars called "light show" where the dash lights blink consistently. The replacement of the switch remedies that. Whether or not that is the actual issue with the '99, I don't know. You could probably find a reference to the headlight issue over on DodgeIntrepid.net. I will say if it is the switch, is to be real careful taking the dash apart. It seems simple enough, but it is not a simple straight forward task. IIRC, the lower bolster panel comes out, the bezel surrounding the switch goes over the column above the column is a major pita to deal with. Why it was designed that way I was able to do mine just under an hour. Common sense is a flower that does not grow in everybody's garden

Re: 99 Chrysler 300 M electrical gremlins? [Re: Ron_M] #1565383 01/20/14 08:51 AM 01/20/14 08:51 AM
Joined: Jan 2003 Posts: 25,962 United Socialist States of Ame... T tboomer OP Too Many Posts
tboomer OP Too Many Posts T Joined: Jan 2003 Posts: 25,962 United Socialist States of Ame...	Thanks everyone! As soon as it gets nicer out I will look into it. I think it is too nice to crush! Need your rear end checked out? Contact Grizzly!!

Re: 99 Chrysler 300 M electrical gremlins? [Re: tboomer] #1565384 01/20/14 04:03 PM 01/20/14 04:03 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Ted its been a while since I worked on them but on the 99 I believe the body control module works the lights. The headlite switch grounds a voltage that may be hard wired to the body control module or sent over the buss. Basically the body control module looks to see when the headlite switch goes to ground thru different resisters to know what switch posistion you want and the body control module will power the lights. I think that how the 99 is but I would have to get the wiring book to be sure. Ron

Re: 99 Chrysler 300 M electrical gremlins? [Re: 383man] #1565385 01/20/14 10:21 PM 01/20/14 10:21 PM
Joined: Jul 2003 Posts: 6,167 Maryland GO_Fish master
GO_Fish master Joined: Jul 2003 Posts: 6,167 Maryland	test for you. That car has the "auto on" headlight feature, lights come on automatically at dusk. If you turn this feature off and use the switch old fashion manual mode, do the lights still come on at random? Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph

Re: 99 Chrysler 300 M electrical gremlins? [Re: Ron_M] #1565386 01/20/14 10:26 PM 01/20/14 10:26 PM
Joined: Dec 2012 Posts: 282 Northeast MA Charger446 enthusiast
Charger446 enthusiast Joined: Dec 2012 Posts: 282 Northeast MA	Quote: There is a phenomenon in those cars called "light show" where the dash lights blink consistently. The replacement of the switch remedies that. Whether or not that is the actual issue with the '99, I don't know. You could probably find a reference to the headlight issue over on DodgeIntrepid.net. hahaha the "light show" great way to describe it, it happens on my 300m constantly. I did mess around with the switch and got it to stop. I know that's not the answer but love the description...

Re: 99 Chrysler 300 M electrical gremlins? [Re: Charger446] #1565387 01/21/14 10:56 AM 01/21/14 10:56 AM
Joined: Jan 2003 Posts: 25,962 United Socialist States of Ame... T tboomer OP Too Many Posts
tboomer OP Too Many Posts T Joined: Jan 2003 Posts: 25,962 United Socialist States of Ame...	I hope the weather is decent this weekend so I can go look at it. Thanks guys! Need your rear end checked out? Contact Grizzly!!

Re: 99 Chrysler 300 M electrical gremlins? [Re: tboomer] #1565388 01/21/14 12:38 PM 01/21/14 12:38 PM
Joined: Jan 2003 Posts: 4,437 Omaha Nebraska Brian_wo master
Brian_wo master Joined: Jan 2003 Posts: 4,437 Omaha Nebraska	My 99 Concorde does the light show thing sometimes, I just mess with the dimmer switch trying brighten and dim them real fast, that usually stops it for a few months. who is that guy?

Re: 99 Chrysler 300 M electrical gremlins? [Re: Brian_wo] #1565389 01/21/14 10:31 PM 01/21/14 10:31 PM
Joined: Jul 2003 Posts: 6,167 Maryland GO_Fish master
GO_Fish master Joined: Jul 2003 Posts: 6,167 Maryland	Quote: My 99 Concorde does the light show thing sometimes, I just mess with the dimmer switch trying brighten and dim them real fast, that usually stops it for a few months. I suppose dirt or oxidation in the dimmer rheostat. Rolling the dimmer quickly a few times seems to knock the crud off that is creating trouble. Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph

Re: 99 Chrysler 300 M electrical gremlins? [Re: GO_Fish] #1565390 01/22/14 01:33 AM 01/22/14 01:33 AM
Joined: Apr 2004 Posts: 2,415 Connecticut Ron_M top fuel
Ron_M top fuel Joined: Apr 2004 Posts: 2,415 Connecticut	Logical move. I tried it without much success. Switch price wise wasn't that bad. The service manual used to be downloadable on DodgeIntrepid.net. Not sure if it still is. Speaking of electrical gremlins... Another quirk is the HVAC head display flaking out. Another annoyance. Remote trunk release harness wires loosing connection after being flexed all these years. For a REALLY fun problem, wait until the Torque Converter Clutch code triggers the check engine light DAMHIK! Common sense is a flower that does not grow in everybody's garden

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