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Re: Tyre sizes - Including asbuilt Calculator
Posted: Sat May 06, 2023 8:54 am
by saeb
Pasparakis wrote: ↑Sat May 06, 2023 8:31 am
The better value in my case is 0977?
Here BCM 726-12-01 xxxx-XXXX-xx ?
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Yes, correct.
Re: Tyre sizes - Including asbuilt Calculator
Posted: Sat May 06, 2023 6:39 pm
by Pasparakis
My car is 10speed automatic…is right value 0977?
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Re: Tyre sizes - Including asbuilt Calculator
Posted: Sat May 06, 2023 7:58 pm
by saeb
Use 09DC then and read ALL the instructions.
Re: Tyre sizes - Including asbuilt Calculator
Posted: Sat May 06, 2023 8:32 pm
by Pasparakis
With 09DC I have problems to auto parking..the wheel goes to pavement..
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Re: Tyre sizes - Including asbuilt Calculator
Posted: Mon Aug 21, 2023 6:15 pm
by toochie
I`ve had 275/65/r18 on the10 speed biturbo for 12,000 k`s now, originals wre 265/60/ r18,; I wasn`t happy with the way the car was running, came here and used the tyre calculator and followed the instuctions- all good now - way better economy and trans is way better also.
Thanks so much for your efforts on this site
Re: Tyre sizes - Including asbuilt Calculator
Posted: Fri Aug 25, 2023 8:08 pm
by Humbie
Hi all, I have a Next-Gen Everst Sport V6 with 275/65R18's.
True Circumference mm: 2559
Ford Corrected Circumference mm: 2475
Required BCM value at 726-12-01 is xxxx-09AB-xxxx
I updated this value under bcm asbuilt and did theTCM relearn but keep getting numerous error codes.
I reset this to default and cleared the error codes.
I tried changing the tyre circumference under bcm non asbuilt but got more error codes, the service message and a check 4x4 message.
I reset this to default and cleared the error codes.
I know 0977 is the max value on the 6 speed but read that I should use the value shown in the calculator for the 10 speed.
Am I missing something Stewart?
Re: Tyre sizes - Including asbuilt Calculator
Posted: Fri Sep 01, 2023 4:56 am
by Kazuhara
Hi guys,
My Ranger is currently remapped or tuned. Is it safe to relearn PCM?
Re: Tyre sizes - Including asbuilt Calculator
Posted: Fri Sep 01, 2023 5:27 am
by saeb
Yes.
Re: Tyre sizes - Including asbuilt Calculator
Posted: Fri Sep 01, 2023 7:18 am
by Humbie
toochie wrote: ↑Mon Aug 21, 2023 6:15 pm
I`ve had 275/65/r18 on the10 speed biturbo for 12,000 k`s now, originals wre 265/60/ r18,; I wasn`t happy with the way the car was running, came here and used the tyre calculator and followed the instuctions- all good now - way better economy and trans is way better also.
Thanks so much for your efforts on this site
Was your BCM value at 726-12-01 xxxx-09AB-xxxx?
Re: Tyre sizes - Including asbuilt Calculator
Posted: Fri Sep 22, 2023 12:03 pm
by jabbawingo
If the numbers are all correct and the speedo is still showing 100km/h when GPS shows 96km/h can i correct this another way?
Re: Tyre sizes - Including asbuilt Calculator
Posted: Fri Sep 22, 2023 12:06 pm
by saeb
jabbawingo wrote: ↑Fri Sep 22, 2023 12:03 pm
If the numbers are all correct and the speedo is still showing 100km/h when GPS shows 96km/h can i correct this another way?
No. Speedometer cannot be independently changed and the 4% is written in the firmware.
Re: Tyre sizes - Including asbuilt Calculator
Posted: Fri Sep 22, 2023 2:19 pm
by jabbawingo
saeb wrote: ↑Fri Sep 22, 2023 12:06 pm
jabbawingo wrote: ↑Fri Sep 22, 2023 12:03 pm
If the numbers are all correct and the speedo is still showing 100km/h when GPS shows 96km/h can i correct this another way?
No. Speedometer cannot be independently changed and the 4% is written in the firmware.
bummer! thanks though
Re: Tyre sizes - Including asbuilt Calculator
Posted: Fri Sep 22, 2023 3:03 pm
by GerryP
If you read the speed via the OBD port using a Scangauge or similar, you'll see the speed without the 4% factor. If your tyre size settings are correct then that should correspond with your GPS.
Re: Tyre sizes - Including asbuilt Calculator
Posted: Sat Sep 30, 2023 10:13 pm
by LUMO
Hi Stewart,
Just confirming we only Make required changes in BCM asbuilt ?
My Required BCM value at 726-12-01 is --- xxxx-09DC-xxxx for the 285/70r/17 wheels and Tyres.
Do i need to change the original Tyre Circumference from 2340mm to 2610mm too?
I have a PX3 BiTurbo 10 Speed.
cheers
Pete
Re: Tyre sizes - Including asbuilt Calculator
Posted: Mon Oct 02, 2023 7:54 am
by saeb
LUMO wrote: ↑Sat Sep 30, 2023 10:13 pm
Hi Stewart,
Just confirming we only Make required changes in BCM asbuilt ?
My Required BCM value at 726-12-01 is --- xxxx-09DC-xxxx for the 285/70r/17 wheels and Tyres.
Do i need to change the original Tyre Circumference from 2340mm to 2610mm too?
I have a PX3 BiTurbo 10 Speed.
cheers
Pete
Do exactly as per the instructions.
Re: Tyre sizes - Including asbuilt Calculator
Posted: Mon Oct 02, 2023 4:53 pm
by LUMO
Done with out changing the tyre circumference and much better now.. gps show 3km/h less than the cluster.
Thanks Stewart..
Re: Tyre sizes - Including asbuilt Calculator
Posted: Mon Oct 02, 2023 5:26 pm
by saeb
3 or 4 depending on tread depth is perfect.
Re: Tyre sizes - Including asbuilt Calculator
Posted: Thu Oct 12, 2023 3:55 pm
by Micksnextgen
Can somebody tell me if this works for next gen ranger have fitted up 285 70 17 tyres and want to correct speedo thanks
Re: Tyre sizes - Including asbuilt Calculator
Posted: Sun Jan 28, 2024 5:38 pm
by mic_vanda
22.75 2ltr wildtrack
I changed my BCM value from 725-12-01-C100-4D50-4E20 to 726-12-01 to xxxx-09DC-xxxx for the 285/70r/17 wheels and Tyres.
Click write and it comes up with a check sum error
Ignition off and on
And retrained the TCM.
But the are DTC’s I can’t clear.
I tried three times, go back to standard and the codes clear.
Any ideas what could be causing this?
I also tried change the tyre circumference but it comes up with a transfer error alarm so back to standard
Re: Tyre sizes - Including asbuilt Calculator
Posted: Sun Jan 28, 2024 6:52 pm
by saeb
As per my note on the calculator "This is not applicable to NextGen"
22.75 would be a NextGen so......................................................