check engine light went on and took it to Chrysler and they diagnosed it as a bad relay module. Can u guys help me locate one new or used. or if someone has one laying around they would like to sell. Thanks.

Part # 5099007AA

I swear its one thing after another with this car.

 

CROSSFIRE RELAY 5099007AA, Mercedes 170 545 03 05, NEW | eBay

 

You probably only need to resolder the connections to the relays.... this is a fairly easy DIY if you know how to solder... or have a friend that does....

I will look up the How To thread.....

Here you go...

https://www.crossfireforum.org/forum...-no-start.html

 

I like this alternative . you know.. versus the $200 dollar one

 

It may not be the solder problem at all, what was the code set?
Too many people jump to the wrong conclusion. It depends on the symptoms.
Example; RCM problem = solder fix.

I repeat, what was the code that was set?

 

180, you are correct... it may not be a solder joint problem but a failed relay or component... but for just a few minutes of solder time you can find out......if it fixes the problem your done... if not you find a replacement....

Softballjunkie, as 180 asked....what was the code(s) from the CEL?

 

180 and Mike the code came back P1830-04

Says found intermittent operation of Power Relay Module

 

I'll stick my neck out here as I am not an expert on this by any means.
I searched and could only find that the code P1830 refers to the transmission on a lot of cars. I am not too sure that all cars use the same codes.

This is how the numbers are grouped.

 

Not to doubt the dealershipand that #, but did they clear the code(engine light)or is it still on? And did they charge you for that diagnosis? If the light is still on, I would take it to your local autoparts store that reads codes for free. And I also agree w/ MikeR that you have nothing to lose by doing the solder fix; a known problem, and easy to do (if you can solder). Good luck with it Softball. Bob

 

Here is what I got back when I searched for Chrysler P1830 code....

Definition of Chrysler DTCP1830Make:ChryslerCode:P1830Definition:Clutch Pedal Switch Over-ride Relay Circuit
This dosent make much sense on an SRT6...

Didnt find anything for MB for that code.... Ford shows it as related to the transmission...

 

Actually, the schematic shows the Traction Control Relay mounted inside the RCM feeds power to the shift lever mechanism and an input on the TCU. So the RCM could definitly be a culprit. Clean your contacts, resolder your circuit board, reset your code and go from there.

 

Thanks Tuna... I did a quick look for RCM in the wiring section and it is scattered around.... guess I didnt spend enough time looking...

 

I found it quick because I remeber thinking "hmmm what would happen if we tried disconnecting this wire" LOL!

 

Mercedes trouble codes can be found here.
There is no P1830 mentioned though.
Mercedes-Benz Diagnostic Trouble Codes (DTC) for 1996+ models - Benzworld.org - Mercedes-Benz Discussion Forum
You may have to sign up though, its easy so it only takes a minute.

Another list of Mercedes fault codes but impossible to find a specific number as they are listed in order.
http://www.permoveo.ltd.uk/tabid/123...z/Default.aspx

 

man, softball, you have had some bad luck with this one. however, my rcm went out @ 700 miles!

 

tell me about it! I almost bought a new Challenger today. Just store this car until I feel like using it.

The code was reset and is off right now. The service department told me that its not a must need now situation, but to do get it done. I'm leaving to LA on Mon wanted to take the car down, but am having second thoughts.

So is a power relay the same thing as a RCM?

Maybe Chrysler can solder it for me. I have no idea how to do it.

 

They will not solder it for you! tighed1 has generously offered to fix this issue for Forum members for essentially the cost of a beer. You could perhaps consider this. I'm pretty sure he has a resoldered RCM to send you, and then you send him yours to fix for the next person that may need help with this. How easy is that? Again, remember this may or may not fix the problem, but at least you can eliminate this RCM solder joint issue as the suspect.

 

One definition for this code for one make (Audi?) said it was a transmission select lever problem code. Another was for a valve in the transmission.
Definitely is a transmission problem though.
Samples;
Audi: Pressure Control Solenoid 4 Short to B+
Chrysler: Clutch Pedal Switch Over-ride Relay Circuit
Dodge: Clutch Pedal Switch Over-ride Relay Circuit
Ford: Transfer Case HI To LO Shift Relay Coil Circuit Short To Battery
Jeep: Clutch Pedal Switch Over-ride Relay Circuit
Lincoln: Transfer Case HI To LO Shift Relay Coil Circuit Short To Battery
Mazda: Transmission transfer case high to low shift relay coil short to battery
Mercury: Transfer Case HI To LO Shift Relay Coil Circuit Short To Battery
Volkswagen: Pressure Control Solenoid 4 Short to B+