Hermie

Or maybe the better question is does anyone know what % difference before the ABS trips a code. Above combination gives me a 3.7% speed error factor front to rear. If I change the rears to a 275/35 error factor would be 0.4% Any advice would be great. Thanks

Help still need - 69 Mustang running BF XR 8 running gear, ABS and all wiring. Don't want to mess up the ABS now that it all seems to be communicating with out fault codes

Looking for guidance on adjusting for different wheel combination. Rear. 275/40 R18 Circum = 2125.8mm Rev 756 per mile - 470 per km Front 245/40 R18 Circum = 2050.4mm Rev 785 per mile - 488 per km What settings do I need to change to keep ABS and speedo happy.

@ Barry Thanks for info, I am in Vic and will look around for whats available on the second hand market, cheers .

@Barry, Thanks for the update, i figured that's what my problem would be as well. I have de pinned the 2 wires from the Transmission at the reverse relay and wired in a temp ignition supply and then added a micro switch natural that switches when in reverse. Works for now.. How did you go finding one and how much?? mine is also a BF 2006 from an XR8. Would like to get this fixed properly. Thanks Tony H

Bill, Once again thank you so much for all your help. I have attached the latest direct from the Car, if your happy to look at it and maybe you can find something else that is out of sorts. MustangXR.tec

Bill Also the steering column and key are not from the same vehicle hence why I need to do a complete key reprogram, can this be done with PCMtec or is Forscan my best option for this.

Hi Bill I have changed the speed source in the PCM, the file I sent was from my desktop PC where i can explore PCMtec and learn with out effecting any thing on the vehicle and the copy on my Laptop. ABS module has no fault codes had to custom make the trigger wheels and the front sensors are fitted to the rear and vise versa. Trigger wheels have the same amount of notches as per the original falcon ones so far so good. have taken it down the road and back for a couple hundred meters and back all seemed OK except for limp mode.

@Bill not standalone anymore, setup is sitting in a 69 Mustang and running a complete wiring and modules out of a XR8 Ute 2007, still running the original PCM so the ZF 6speed still matches, will turn PATS back on when I have an extra key done as I only have 1 one at the moment also running a modified BF steering Column as well. You helped me out with a previous post regarding diff ratio and speed sensor settings. Still need to take it out to see if the speedo is working and hoping limp mode will be sorted.

@Bill so my setting as suggested above where set that way previously so not the issue there, and as per @Barry I also went through all my connectors and wiring and found nothing. The transmission is not switching the earth/negative to the reverse relay. The PATS switch was switched off by others as this was originally going to be standalone set up, bought as a package where you send you PCM & wiring harmess to them and they reprogram PCM and Mod the harness. This was done like many years ago and engine & trans has only 60k on them.

Here is my file, hope we can resolve this. TCM: P1910-FF (Reverse Lamp Control Circuit Open) HADCEM3.tec

Sorry Pin 15, 14 is the 12v supply to the reverse relay

Hi Barry I have the same codes on my build with XR8 Motor and ZF 6speed. TCM: P1910-FF (Reverse Lamp Control Circuit Open) PCM: P0701-60 (Transmission control system - range/performance) Have you checked if your reverse lights are working?? also have you checked if you are receiving a earth signal from TCM Pin 14 off memory that goes to the reverse relay?

Will do, once again thanks for the help.

Thanks Bill I have previously checked all the connections and point to point checked from the Transmission through to C20 connector and to PCM all OK. Still getting reverse open circuit fault which is more than likely the cause of the P0701 at the PCM. there is not much info on the reverse open circuit code, those that did have this code put in a new/refurbished TCM and this got the reverse lights working again. Thanks