I need some info on what your experience has been with a p0603- Internal pcm keep alive memory malfunction.

The other day I started my TL and the green key remained flashing while the car was running along with a steady check engine light. I got to work and read the code and found the p0603. I took it to Acura due to the fact I still have about 300 miles left on my exended warranty. On my way to my appointment the light went off but I left the car anyway. They called me the next day and said they saw the code, they cleared the code and it did not return. They don't know what caused it and they charged me $110 diag fee. Anybody have any experience with this code?

Thanks

 

why did they charge you if the vehicle is still under warranty?

 

^

PCM internal memory.... PowerTrain Control Module... hmmm... sounds like a memory dump error.... dude you get a blue screen of death on your navi?

 

the navi was normal, in fact everything seemed normal except for the lights.

They charged me because they say that diagnostic is not free unless they find a faulty covered part. I look at the $110 as an insurance policy, when it comes back after my warranty it will be adresses due to it being documented as happening during the warrrany period. At least I hope.

 

sounds like a bad pcm or a loose battery cable, ground.

 

well looked it up and it says to update the pcm. if it has the lastest update then
swap with a know good unit.

 

Thanks for your time, My service writer says my software is current so I guess we will see if it returns.