Do a search of the site, this is a fairly common problem. I am not aware of any fix for it yet.
I have a 2005 Magnum SXT. Every morning when I leave for work & I have my headlights on, they appear to be pulsing. My interior lights also pulse or fluctuate. My car is out of warranty so I have no intentions of taking it to the dealership. Does this happen with anyone else's LX? Is it an alternator issue or battery? Both are still original on my car & I have 51K on it. Any help would be greatly appreciated. Thanks.
Do they do it all the time or only when at idle?
2005 Cool Vanilla Magnum RT (Mopar CAI)
They do it all the time. Idling, driving, whenever. It does not seem to have anything to do with the radio because they keep doing it when I turn it off. It is very annoying.
I have searched but can not find anything. maybe I am using the wrong search words.
It's a body module flash to an updated software. Dealer fix.
Usually does it for the first 5 or so minutes after starting, then it smooths out when you're driving. Usually.
Mine got fixed first time at the dealer. SXTs had a TSB.
edit: TSB 18-003-05
Flash: Headlights Fluctuation and/or Interior Lamps Fluctuation
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM) with new software.
2005 (LX) Chrysler 300/Magnum
NOTE: This bulletin applies to vehicles equipped with a 2.7L or 3.5L engine (sales
code EER or EGG) that were built between June 28, 2004 (MDH 0628XX) and
January 8 XX, 2005 (MDH 0108XX).
The vehicle operator may experience headlight fluctuation and/or interior lamp fluctuation.
This condition will occur after a cold start, while the vehicle is idling, under heavy electrical
load and a slight throttle tip-in. This condition could also be described as the headlights
and/or interior lamps changing intensity at a steady rate. DTC P0563 - Battery Voltage
High may also be stored in the PCM.
Using a Scan Tool (StarSCAN) with the appropriate diagnostic procedures on
TechCONNECT, verify all engine systems are functioning as designed. If DTCs are
present other then the one listed above, record them on the repair order and repair as
necessary before proceeding further with this bulletin.
If the customer describes the Symptom/Condition, perform the Repair Procedure.
Last edited by Invader; 10-16-2008 at 12:58 PM.
Thanks Invader. Looks like I have 2 TSBs to take over to the dealer. Wonder how much this will set me back. Oh well.
I have an 05' Magnum RT and i got the same problem. :/
Is there any TSB for my car on this?
I've got the same problem but I got to ask, what do the acronyms stand for? TSB, DTC?
there are no strangers here, just friends you haven't met yet..
Thanks fnkychkn. None of the dealers in the lower mainland had heard of the problem or could find a service bulleten on it. I copied your reply and sent it to those same people and the TSB's materialized. It seems when it's going to cost them money to support or fix, it's hard to get answers.
Yeah, it's sad to have to provide proof of service bulletin to get anything fixed... /it's the old saying "deny, deny, deny". You just gotta wonder how many people get reamed because of this???!
Randy '06 R/t, Brill Blk with lt slate int, 6 disk cd with Elect conv grp, Conv grp II, and Prot grp; Pwr sunroof; 600w pwr inv; HW Radar Det. and phone dock; Tint Win; Tail lts Blacked out, Restraint decal, sheriff plate sticker; Danko- Chin Spoiler, 3 piece wing, Cust lit HEMI Shaker Ram air CAI system; Led- Eyebrows, back up lights, trunk overhead lights, glove box and center console lights, plate screws, back lit wheels and vents on metal fenders; 3 USB Ports; 2 Audio inputs for stereo; HID 3K with Halo Headlights.