RR Loses VIN and CASE and OLM after losing power?

[N0DIH]

My RR will lose VIN, CASE and OLM (Oil Life Monitor status) if I remove battery power from it. Does anyone else see that?

Is my battery dead?

Been doing it for a while now, darn annoying. Sometimes the car will do some sort of a reset and it will lose it too.

[mr.prick]

When my RR's internal battery failed it needed a full flash it to be able to start the engine.

[N0DIH]

Not having problems there, just if power is removed (if you take the PCM out of the car, or battery disc, etc) CASE/VIN/OLM get blown away.

When my RR's internal battery failed it needed a full flash it to be able to start the engine.

[Highlander]

Replace the battery and see how it goes... When my RR had a dying battery it acted extremely weird.

[driver456]

Where do you get a battery for the RR?

[N0DIH]

moates.com

Where do you get a battery for the RR?

[Highlander]

Radio Shack
Walgreens
Walmart

[N0DIH]

Not unless you know how to solder onto the battery and being lithium, I would NOT recommend it... The RR something like a CR2032 with 3 pins welded on to it.

Radio Shack
Walgreens
Walmart

[driver456]

Thanks,Yea the battery has 3 legs on it.I check the volts on mine,And it was at 2.89 volts,So it still seems to be good.

[N0DIH]

Found my problem. I was using a .bin directly from GM, and it didn't have the VIN, ESN or CASE Learn programmed in at all. So even though I programmed them in, if I didn't do a read, I never saw them and reloaded the blanked data. But the VIN and CASE were stored still somehow, ESN just stayed blank, it isn't used in my application. I just rarely READ the RR back out.

I was able to force CASE and VIN back in properly with EmUtility. Was rather stubborn about it too... Mine's a 2000 L67.