$12P Can't connect to 808 ECM.

For discussion and distribution of custom code and hacks
L67PSI
Posts: 177
Joined: Mon Dec 12, 2016 11:27 am
cars: L67 VT Calais

Re: $12P Can't connect to 808 ECM.

Post by L67PSI »

DS1245Y chip
Attachments
ds1245y.JPG
L67PSI
Posts: 177
Joined: Mon Dec 12, 2016 11:27 am
cars: L67 VT Calais

Re: $12P Can't connect to 808 ECM.

Post by L67PSI »

May have found the problem. ECM could be faulty. Took out NVRAM board and fitted stock memcal and fans still come on.

Fitted stock memcal to spare ECM and no fans and engine starts & runs smooth.
L67PSI
Posts: 177
Joined: Mon Dec 12, 2016 11:27 am
cars: L67 VT Calais

Re: $12P Can't connect to 808 ECM.

Post by L67PSI »

Ok, put NVRAM board into spare ECM and fires straight up, no fans or CEL. Def a bad / faulty ECM.

Now to re-solder USB comms onto spare.

Will post back with results.
Dylan
Posts: 3355
Joined: Mon Aug 02, 2010 6:35 pm
cars: VR Commodore V8

Re: $12P Can't connect to 808 ECM.

Post by Dylan »

That's good to find the problem at least
L67PSI
Posts: 177
Joined: Mon Dec 12, 2016 11:27 am
cars: L67 VT Calais

Re: $12P Can't connect to 808 ECM.

Post by L67PSI »

All fixed.

Soldered in USB comms board & write enable wire, now connects with Flash Tool & TunerPro plugin. Tested with writing bin and get bin functions. All worked with no errors.

Not sure what happened to the old ECM then?? As it did power on and blue LED on NVRAM was active.

Thanks to everyone for assistance. :thumbup:
User avatar
antus
Site Admin
Posts: 8237
Joined: Sat Feb 28, 2009 8:34 pm
cars: TX Gemini 2L Twincam
TX Gemini SR20 18psi
Datsun 1200 Ute
Subaru Blitzen '06 EZ30 4th gen, 3.0R Spec B
Contact:

Re: $12P Can't connect to 808 ECM.

Post by antus »

Cool. For reference thats a week 48 of 2011 nvram. They state they should last 10 years but ive seen trouble in 7 worst case/worse conditions. Interesting genuine sticker but its good to know whats what i guess. Glad you found the problem!
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
L67PSI
Posts: 177
Joined: Mon Dec 12, 2016 11:27 am
cars: L67 VT Calais

Re: $12P Can't connect to 808 ECM.

Post by L67PSI »

I had a fake ds1245y so labelled the good genuine one.

Thanks
Post Reply