PDA

View Full Version : GM BCM bench wiring pinout



1906
February 18th, 2017, 08:54 AM
Interested in giving the newly released support a try but can't seem to wire up the BCM right. Anyone willing to share the pinout for a 14 C7?

GMPX
February 19th, 2017, 11:26 AM
This release only covers (approx) 2006 to 2012 BCM's (made by Denso) Then after that GM split in to two BCM types, one made by Bosch, one made be Continental, those two aren't supported yet.
Keep in mind, EFILive has only provided the flashing tool for the BCM, no mapping is available but modified tunes are available from Oz Tuner (http://www.oztuner.com/).

Just an FYI, a BCM on the bench by itself needs a 120 Ohm load across the CAN bus before you can talk to it, or you can have an ECM hooked up at the same time for the same result.

Tre-Cool
February 19th, 2017, 07:47 PM
whoa, when did bcm reading get added in? must of missed that.

GMPX
February 19th, 2017, 09:39 PM
It didn't, only BCM flashing was added by request of a company that wanted to sell already modified tunes for BCM's. Probably most of what they offer will be of little interest to Commodore owners knowing what options VE's had vs the Silverado trucks.

Tre-Cool
February 19th, 2017, 09:45 PM
yeah i've got no interest in it myself. just didnt see anything mentioned is all.

I know a lot of the guys locally have just been able to send the relevant can command to change options etc

Blacky
February 20th, 2017, 01:25 PM
yeah i've got no interest in it myself. just didnt see anything mentioned is all.

I know a lot of the guys locally have just been able to send the relevant can command to change options etc

In this "What's New" doc: http://download.efilive.com/Software/whatsnew_316.htm

20771

It says read/flash support because technically support was added for reading/flashing other controllers, it's just that reading is not implemented/possible on some controllers, i.e. the BCMA for which we've just added flashing support.
Admittedly it is sort of a tiny little "notice" for a rather large enhancement.

Regards
Paul

1906
February 20th, 2017, 03:39 PM
This release only covers (approx) 2006 to 2012 BCM's (made by Denso) Then after that GM split in to two BCM types, one made by Bosch, one made be Continental, those two aren't supported yet.
Keep in mind, EFILive has only provided the flashing tool for the BCM, no mapping is available but modified tunes are available from Oz Tuner (http://www.oztuner.com/).

Just an FYI, a BCM on the bench by itself needs a 120 Ohm load across the CAN bus before you can talk to it, or you can have an ECM hooked up at the same time for the same result.

Thanks. Do you happen to have pinouts for one of those year BCMs?

DURAtotheMAX
February 20th, 2017, 03:45 PM
Thanks. Do you happen to have pinouts for one of those year BCMs?

Why do you need a pinout for the BCM.

cindy@efilive
February 21st, 2017, 08:56 AM
yeah i've got no interest in it myself. just didnt see anything mentioned is all.

I know a lot of the guys locally have just been able to send the relevant can command to change options etc

It was detailed in our recent newsletter and is on the front page of our website.

https://www.efilive.com/latest/cat/newsletter/post/bcm-flashing/

Cindy


Sent from my iPad using Tapatalk