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Tamper dot with replacement (used) LCM. Should I code the dot out PRIOR to driving?

17K views 12 replies 5 participants last post by  Burning2nd  
#1 ·
The original 4/99 build LCM III in my car recently decided to go bananas after an unusually frigid cold spell here. I replaced it today with a used (10/99 build) LCM III that I purchased on ebay.

Now, everything seems to be back to normal, all lights work again as they should; the turn signal stalk operates the lights as designed. Only thing I knew I'd have to deal with is the tamper dot.

I have not driven the car out of the drive-way yet. What I would like to know is, should I learn how to code the replacement LCM and remove that dot PRIOR to driving the car, or whether it will matter?
 
#2 ·
It's difficult but you just need PA 1.4 to code the mileage which you should've wrote it down. The for will go away. You will still get tamper warnings when you scan it but you won't see it on the cluster
 
#4 ·
I have the mileage data. Replacement LCM is from a MY2000 M5 with about 30,000 miles less than mine (Does it matter?)

PA 1.4? You mean PA Soft or ....? I thought that the one with coding functions cost quite a bit and that the ones on/through ebay were only able to read data.
 
#3 ·
I don't have a clue as to the answer, so, I'll just cross reference to the tamper-dot threads ...
- What triggers the E39 tamperdot and how the VIN and mileage and service interval are associated with the cluster red tamper dot (1)
 
#5 ·
Thanks for that link, I've read through it before and still haven't absorbed all the info in there.

I suppose what I'm worried about is, if I don't code the replacement LCM right away, and I end up driving the car beyond 120 km (or was it miles?), will some sort of permanent record of tampering be kept in the IKE?

I wouldn't be asking these questions if I had LCM coding ability and knew how to use it. The more I read about this stuff, the more confusing it seems.

So far I've gained the impression I need either PA Soft (BMW Scanner 1.40) or EasyDIS v44 to be able to code my car's VIN into the replacement LCM. Still not understanding whether I need to plug in my car's actual mileage or set the recorded mileage in the replacement unit to "0" ....
 
#7 ·
Thanks for that refresher Q.

So, to code the replacement LCM (providing I can get all the hardware/software to work together), I assumed I would need to input only my car's VIN and mileage (higher by 30,000 mi).

I've spent the afternoon installing EasyDIS v44. Not sure I've succeeded as I haven't yet plugged the laptop into the car, but since this is originally based on the GT1/DIS system that the dealerships use, and you say that they can't overwrite a used LCM with it, then hmmmmmm.... am I limited to finding a coding-capable version of PA Soft (BMW Scanner 1.40) as recommended above?

The other concern I still have is, assuming I ignored the tamper dot for now and drive the car over 120 mi, then, beyond that point, some sort of tampering fault data will be permanently stored in the IKE memory whether I later code the replacement LCM or not?
 
#9 ·
A new cluster/IKE (or a used cluster zeroed by aftermarket software/hardware) will be at zero miles, which then allows the VIN (ID) to be coded to it (see #3)...when the VINs match, then the LCM will share its data with the IKE (mileage & Serv Interval data) as mentioned in #2. :)
 
#10 · (Edited)
Minor update....

I ordered an ebay version of the bmw scanner 1.4.0 package, waiting now for HK shipment on that and hope it allows me to code the used LCM.

In the meantime, while I wait, I re-installed my original LCM III and followed the various GT1/DIS v44 install write-ups on the forums and succeeded in getting that to work with my INPA/EDIABAS cable plugged into the round port under the hood. Great way to spend vacation (not...).

However.... an interesting twist. The DIS utility allows me to access everything following the e39 menu selection *except* the recoding feature, and returns with "IKE/KOMBI no response" (or something like that....), suggesting I recheck the cables, ignition, battery charge and so forth. It allows me to move ahead with retrofitting and reading codes and everything else that I don't want to do. (Battery is fine, I have it on a charger when doing these diagnostic procedures with the ignition key on. I get the same results with the engine running....)

So.... is it possible my IKE/cluster is toast?

Aside: When I access my LCM III through INPA, and check it for errors, it claims it is error-free.

----edit----

Out of curiosity, I decided to pull the cluster. Lo and behold, the car has a replacement cluster already. Dated 01.04.2005 with an 1122 2005 stamp on top.

My maintenance records on this car go back to 2006, dealer claims nothing older is in their database. One-owner car before me, and he typically had all his work done at BMW dealerships, so I'd assume this was a new cluster when installed.

Anything serviceable inside? Looks as though it's made to be disassembled but my only reason for pulling was to see whether the connectors had any moisture/corrosion on them.