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Discussion Starter #1
So over the past 6 months my car has decided to

First: Climate control completely stops working
Second: about a month later reverse camera only intermittently works
Thirdly: reverse parking sensor completely stops working
Fourth: over about the next 1-2 months my remote for the alarm/central locking intermittently works and now doesnt work AT ALL
Lastly: TPM error comes on every time i turn on the car and repeats it self roughly 30 seconds after inital error message (every time car is turned on but only twice per drive the error message shows)

I have had this looked at by an auto electrician who advises it could be a module which controls all these things but couldnt tell me which one as he didnt have the correct tools to work out which one it was.

I have read online that the module could be under the passenger seat but had a look and there was nothing other than a piece of plastic. I want to try and unplug/remove this and wash it with metholated spirits as it would remove any water damage (ive heard that if these get wet they (obviously) will fail), well.... around about the time this all started my car was flooded. I since had it saved by a mechanic (he saved the engine and drives fine ever since although all these electric faults were just starting.

I really DO NOT want to take this to the stealership but looks like i have no other choice.

Anyone either know of a fix or a goood/cheapish mechanic in Sydney Australia

I really need help here as ive just done my ass with the repair to save the engine and cant spend thousands repairing this module/electrical fault

Model is 300C Diesel V6 Turbo 3.0L 2008 - Australian.

Appreciate your help in advance guys.

Tyson.
 

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Mmmm, thats a bugger.

Assuming all the problems occurred at roughly the same time I would guess its just one module corrupting the communications between the modules.

The only thing I could suggest is unplugging one item at a time (and if the module you unplug first doesn't cure it, leave it unplugged and go onto the next one.)

I would start with the HIDT module which is known to cause problems with the radio and parking sensors when they fail. Its under the bonnet at the front of the car. Its easy to get at and takes just a minute to unplug.

If that doesnt fix it move on to the parking sensor module as they are known to fail quite often. If unplugging this one doesn't fix the rest i would move onto the 3 TPM modules one at a time. (Again leaving each one unplugged if none cure it)

EDIT
Just read your post again and they didnt all happen at the same time so you have more than one fault or a fault thats slowly got worse and caused more symptoms.
I can still only suggest the above though.

Jack
 

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Discussion Starter #4
Thank you Jack I appreciate your help but I have no idea 1. What a module looks like
2. Exactly where they are all located.

No one responded in the last few days so I took it to Hi-Tek automecahnics in Roseberry (Sydney) they are Chrysler specialists. When I went in there they had 6 stretch 300c's there for repairs so I'll see what they come back to me quote wise..

If it's $1200+ I'll take the car back and try to work out what you have said and fix the issue myself

Tyson.


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This may be far-fetched but my 09 C suddenly came up with all sorts of electronic weirdness. It seems the folded-up wire animal cages (and they were big ones) I put in the trunk acted as some sort of antenna and caused a whole mess of RF interference with the electricals. Once I got them out it took several days for things to settle down. OK now. Maybe you park near some high-voltage line or something like it?
 

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Discussion Starter #6
I did that once actually when they were repairing some power lines. They had a remote which would stop any interference I.e car alarms etc and when I went back to my parked car they had to switch it off so I could get into the car. Maybe this was the cause.. Who knows. I'll report back once I hear from the mechanic later today


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Thank you Jack I appreciate your help but I have no idea 1. What a module looks like
2. Exactly where they are all located.

No one responded in the last few days so I took it to Hi-Tek automecahnics in Roseberry (Sydney) they are Chrysler specialists. When I went in there they had 6 stretch 300c's there for repairs so I'll see what they come back to me quote wise..

If it's $1200+ I'll take the car back and try to work out what you have said and fix the issue myself

Tyson.


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Sorry I didn't give you more details re locations etc at the time but I couldn't get access to the info I needed.

If they don't sort it for you please come back and let us all know and I will give you further info re locations and what to do.

Still no guarantee it will fix it but the first disconnection only takes 1 minute to do and may well fix some of the problems.

Hope it goes OK for you and its not too expensive.

If they say it needs a new HIDT module and they are expensive, you can safely run with the module disconnected. It just translates electrical info so that Lighting Error codes can be read via the OBD diagnostics socket. Its not needed at all as it just lets you know lighting errors which are normally pretty obvious anyway.


EDIT
Typo corrections
Jack
 

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Discussion Starter #8
Update. They seem to think it was a 'fuze' in the boot has been put in the wrong way so they have put it back in the right way and now have to flash the computer.

The reason the (it's not a fuse but looks like it, it's in the boot and looks like a big fuss, not sure of the name) was in the wrong way was me taking them all out and trying to check them because of an issue to start with so not sure if it's the right diagnosis.

I'll wait to hear the verdict on Monday. Side note: the reason I was playing with whatever those fuse looking things are in the boot was because of an issue to begin with so not sure it's correct but it's good news if they don't have to replace modules as initially thought.

Will report back in a few days


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Update. They seem to think it was a 'fuze' in the boot has been put in the wrong way so they have put it back in the right way and now have to flash the computer.

The reason the (it's not a fuse but looks like it, it's in the boot and looks like a big fuss, not sure of the name) was in the wrong way was me taking them all out and trying to check them because of an issue to start with so not sure if it's the right diagnosis.

I'll wait to hear the verdict on Monday. Side note: the reason I was playing with whatever those fuse looking things are in the boot was because of an issue to begin with so not sure it's correct but it's good news if they don't have to replace modules as initially thought.

Will report back in a few days


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Mmmmm ? Think they're clutching at straws with that one. ?

Jack
 

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Discussion Starter #10
So got the car back after 2 days and turns out it had been an iod in the fuse box in the boot was turned around the wrong way (I think I did this a while back after trying to work out why my reverse camera was intermittently working, I'll come back to this later) this fixed the following issues:

'TPM error'
Airbag light constantly on
Reverse sensor not working
Climate control not working

They say the reverse camera is faulty and can't be repaired (still works intermittently) this would explain a lot and the reason for me playing around in the fuse box to begin with.

Strange how 1 iod (big fuse looking thing) can cause so many issues over an extended period of time.

They say they have updated the software and turned the iod around the correct way BUT I checked the software version (by holding down the bottom left and bottom right buttons on the steering wheel) and found this to not be true as it still has the 2007 software on it - see picture attached for proof.

Basically they charged me $700 to turn a fuse around although they did fix a lot of issues in doing so..

Anyway they are charging me $60 to replace my faulty reverse camera with a new high definition camera and couldn't fix my central locking remote/key so I have ordered a new one from eBay Canada for $100 which they will charge me $100 to program.

All in all it was a huge rip off but am happy to have air con again.

Side note: my GPS was also faulty (it always thought I was driving backwards) which they did not fix so I did some research online and found how to get into the mygig engineers menu (hold the menu and volume buttons together) and just reset it back to factory and BINGO works a treat now

Pics attached: proof of no software upgrade ('07 software still installed) and invoice of what was or wasn't done ;)

Thanks for you time/help everyone.



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Just be aware that the CCN is for the cluster only.
 

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Discussion Starter #12
Hmm ok. Trying to update the software in my GPS right now, what an effort this is omg. Downloaded the new maps (3760_gmapUL and CN_AustNZ_2016_10.mdx) I'm in over my head here.
Anyone had any experience?


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That update is only for the Gen 2 model 2011+
 
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