Installed a new BCM in 2003 Impala today.Used Tech2Win to do set up.Set the Vin ,Country Code and the options by build tag.Didnt give a lot of options ,Daytime running lights,Auto lights ,police car.After set up you need to unlock the radio with the tech2 then switch over to Tis2000 and do a Security relearn.Start car all seems ok.Air bag light is out now but the Keyless entry does not work. Tried to program won’t take it.I used it to open trunk when I started ?Back in to setup on BCM turn on RFA and program fob in.How does RFA stand for Keyless entry ?
This is how to program a used ECM using the Otosys IM600. The IM100 will not do this. It’s pretty much the same as using the Maxisys on any other Chrysler product, but this one through me for a loop so I figured I would post how I finally got it programmed. This vehicle uses the FOBIK prox system (Keyless Go). This was a running vehicle with the original computer. They replaced the ECM in an attempt to correct a misfire issue. It didn’t fix it.
I went to diagnostics, then hot function, then Immo, then PCM replace. It wrote the VIN just fine but no matter how I tried it would fail when transferring the secret Key and the immobilizer light would flash.
I tried going through the control unit (WCM) same result. I tried running the PCM replace function using a new key, same result. I tried reprogramming the original key using the Program Ignition Keys function, same result.
Finally I deleted the old keys and programmed one new key, actually I just unlocked their original key, and then everything worked as it should.
Here’s some pictures: