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Discussion Starter · #1 ·
Has anyone else had any battery problems. If the car sits more than 5 days the battery drains and needs to be recharged. this is the third time it has happened. The battery was checked and all the cells appear to be OK. It is going to the dealer on Monday to check for a slow drain. Anyone had similar problems? Thanks,

Salty
 

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psaltonstall said:
Has anyone else had any battery problems. If the car sits more than 5 days the battery drains and needs to be recharged. this is the third time it has happened. The battery was checked and all the cells appear to be OK. It is going to the dealer on Monday to check for a slow drain. Anyone had similar problems? Thanks,

Salty
There have been several reported such incidents. Do a search for "Dead battery".
As I recall the problems were intermittent and no one ever really got definitive resolution, except for one who reported a bad battery.
How do you close your trunk lid? With a gentle nudge or a big wham!? Nudging it shut may not be getting the whole job done. My suggestion is to keep an eye on the trunk light. It operates from a switch activated by the latch mechanism. There may be a problem with the switch mounting, or you may not be getting the trunk lid fully closed (even though the lid looks like it is all of the way down), or the latch fully engaged to properly activate the switch. When its dark you can tell the trunk light is lit by a slight glow of the third brake light. And even that is difficult to see. You might try putting a backseat backrest section down to be able to best see any light more easily.
Good luck hunting.
 

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I have had the same thing happen and it seems that 5 days is the magic number. If it is only 4 days, it starts no problem. I have checked the trunk light as discussed in other threads and everything else that I can think of. I will be visiting the dealer next week anyway for a talk about my rotors.
 

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Discussion Starter · #4 ·
Dead Battery =s Bad Telamatic Module

Well last week I posted a tread about my battery going dead in about 5 days if the car is not driven. Well dealer has had it for two days and they ran down the fact that the Telamatic module is bad and draining the battery. It is being orderd and will be here next week.

The interesting fact is that the other SRT8 they sold after mine has had the same issue. So if you do not drive for a week or so and then get in the car and its dead its the first place to look. The tech told me they have replaced 5 or 6 of these in 300s this year. I guess I would be looking at my supplier if it was not made by chrysler or take a closer look at the QC process if made inside.

Back on the road again!

Salty
 

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JustForFun said:
What the heck is the "telematic module"? What does it do?

JFF:D
I've heard of a 'telematic module' in computers, but I searched the service manual and could find no reference to this anywhere, including in the battery section or the index... possibly a computer issue??
 

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I took the Magnum out yesterday for the first time in a week. It just sat in the garage and no issues with the battery. They need to check for current drain while parked. I know that many modern computer cars have issues with some circuitry not shutting down when parked and it drains the battery over time.

Todd
 

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Yesterday on a similar thread someone is having the same basic dead battery problem and one of the replies brought up something entitled "Rapid Response Transmittal Service Action #05-027" for the Jeep Grand Cherokee involving something called the WCM (wireless control module). The subject was indicated as "SUNROOF WILL NOT CLOSE". The condition indicated is that the "(WCM) may enter a mode that causes the vehicle communications bus to remain awake until the battery in completely discharged." The repair "Requires the dealer to Flash WCM (Wireless Control Module)", which apparently "involves selectively erasing and reprogramming the (WCM) with new software."
Like HEMEEE, I research the service manual for the 300 Series and Magnum and could find no mention of such a module. It may exist in a Jeep!?
Let's keep our collective ears to the rail. Something may eventually come our way.
 

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Discussion Starter · #9 ·
Well the problem is solved it was the telamatic module which is the U-connect module. They tell me they have had a number of them that have gone bad.

Salty
 

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Telematics Module

Darn, I knew that term sounded familiar... I found that it is listed as one of the parts needed to do the OEM Uconnect install as noted in the link provided by Rambit in this thread. Interesting that the Telematics Module is not referenced anywhere in the service manual though.
 

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HEMEEE said:
Darn, I knew that term sounded familiar... I found that it is listed as one of the parts needed to do the OEM Uconnect install as noted in the link provided by Rambit in this thread. Interesting that the Telematics Module is not referenced anywhere in the service manual though.
Good catch Linda. What a memory! There's supposed to be a problem with that module and I think they're doing a rolling change to it either this or next month.

On the dead battery thing, I hadn't started my car in about a month, so I went out to start it today & it fired right up. Obviously the 5 day draining the battery is a myth.

Rambit
 
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