Alternator control no BCM

[Brads_rs]

Also wondering if alternator control has been added?

[Mean Green Z28]

Bump?

Having issues with my check charging system message coming on every now and then; esp at startup

[minytrker]

Its not in EFI, but HPT has the tables.

[dgdyno]

1972 chevy c 10 Juan Guerrero ls3 cam tune 1 ecm.ctzAlternator control no BCM is there a way to fix this tune

[ricasas]

Just wanted to bump the thread. Has this patch been added to EFI Live or are we stuck still going to the "Other" tuner? I've been dealing with the 13.6V, but now I require more power for all the accessories I am adding.

[RC1]

Just wanted to bump the thread. Has this patch been added to EFI Live or are we stuck still going to the "Other" tuner? I've been dealing with the 13.6V, but now I require more power for all the accessories I am adding.

There is always the option to use one of these, I use one on my Gen V swap and works perfect outputting 14.5V or so.

https://www.amazon.ca/Generator-DROK...7KVYQ78K&psc=1

[ricasas]

There is always the option to use one of these, I use one on my Gen V swap and works perfect outputting 14.5V or so.

https://www.amazon.ca/Generator-DROK...7KVYQ78K&psc=1

I saw this on the LS Swap forum. I was hoping I wouldn't have to add it since I saw in an earlier post here about adding a patch to the program that allowed for alternator control.

[Tre-Cool]

what OS. someone might have time to provide the info for a cax file. I've been delving into the ecu/tcm code myself lately so could potentially help.

[ricasas]

what OS. someone might have time to provide the info for a cax file. I've been delving into the ecu/tcm code myself lately so could potentially help.

Attached is my tune.

ModifiedECM.tun

[Tre-Cool]

Save this to a text file and save with a .cax extension & place it in the C:\Program Files (x86)\EFILive\V7.5\Calibrations folder if using v7.5 with your os number for file name.

[G1000]
; Description
DESC.001 = Alternator Voltage Control: Indicates the vehicle is fitted with a regulated voltage control alternator and serial message duty cycle control from BCM is available, if disabled DC will be 100% when alternator is enabled.
;
;
; Seg Caption Major Minor Vis Dis 2D Grp
; --- -------------------------------- ---------------- ---------------- --- --- -- ---
VIEW = 7 "Voltage Control" "Alternator" "" 1 1 0 0
;
; Address(es) BitOff Bits Typ Inv
; -------------------------------- ------ ---- --- ---
ADDR = 1C0F04 0 8 SED 0
;
; Units Factor Offset Prec MinLimit MaxLimit MinUser MaxUser
; -------- -------------- ------ ---- -------- -------- -------- --------
SI_SLOT = Units 1.0 0 0 0 256 0 256
;
; Body Col Row
; -------------- -------------- --------------
ULABELS = . . .
;
; Enumerations
; -------------------------------------------------------------------
SI_ENUM = "0=Not-Fitted,1=Fitted"
SI_ENUM = "0=Not-Fitted,1=Fitted"
;
; Units Labels
; ---------------- -----------------------------------------------------
SI_COL = .
IM_COL = .
SI_ROW = .
IM_COL = .
; ================================================== =============================
[G1001]
; Description
DESC.001 = Should only be enabled if Voltage Control is enabled. Indicates that the ECM can override the serial message alternator duty cycle to boost system voltage when required.
;
; Seg Caption Major Minor Vis Dis 2D Grp
; --- -------------------------------- ---------------- ---------------- --- --- -- ---
VIEW = 7 "ECM Override" "Alternator" "" 1 1 0 0
;
; Address(es) BitOff Bits Typ Inv
; -------------------------------- ------ ---- --- ---
ADDR = 1E4720 0 8 SED 0
;
; Units Factor Offset Prec MinLimit MaxLimit MinUser MaxUser
; -------- -------------- ------ ---- -------- -------- -------- --------
SI_SLOT = Units 1.0 0 0 0 256 0 256
;
; Body Col Row
; -------------- -------------- --------------
ULABELS = . . .
;
; Enumerations
; -------------------------------------------------------------------
SI_ENUM = "0=Disabled,1=Enabled"
IM_ENUM = "0=Disabled,1=Enabled"
;
; Units Labels
; ---------------- -----------------------------------------------------
SI_COL = .
IM_COL = .
SI_ROW = .
IM_COL = .
; ================================================== =============================