SOLVED! Unable to Calibrate FCW/ACC After Adding 6" Suspension Lift on 37's...

[BiGJZ74]

Truck looks great! Glad you got the issue sorted. I think when it's time to replace my Bilsteins (5100/5160's) on my RL 3.5", I'm either gonna go BDS 4" w/ Coilovers or just swap to Fox 3" Coilovers w/ a .5" tophat spacer, and Fox Resi Rears w/ 2" Springs.

 

[jimothy]

Just got a call from my service manager: my truck is fixed, too! The key, as @jwiley386 also discovered, is putting on stock wheels and tires. Hopefully Ram will recommend this to dealers, but if anyone else encounters this problem, and you have a lift and larger tires, suggest to them they swap out stock tires. If you've kept your stock wheels/tires (I did not), you may want to bring them with you when you take it in for service. Part of the delay in my case was the dealer getting some stocks to put on my truck.

I can't wait to get my truck back. Hopefully, I still remember how to drive.

 

[Adrian052]

Is there a way I can program to 1099mm without a dealer? Doesn’t seem like they will do it.

Anyway as in any way, not an answer such as, only a dealer can etc.

 

[HSKR R/T]

Is there a way I can program to 1099mm without a dealer? Doesn’t seem like they will do it.

Anyway as in any way, not an answer such as, only a dealer can etc.

TazerDT, Pulsar, alfaObd, Jscan

 

[Adrian052]

TazerDT, Pulsar, alfaObd, Jscan

Do you know what it is called in alfa? Steering:suspension ecu configuration A : B ?

 

[HSKR R/T]

Do you know what it is called in alfa? Steering:suspension ecu configuration A : B ?

It's under the body control power net. Then there is actually an option for changing tire size without needing to go into configuration change menu

 

[Adrian052]

It's under the body control power net. Then there is actually an option for changing tire size without needing to go into configuration change menu

I see the confusion. I’m talking in regards to the adaptive cruise control parameters. I know how to change the tire size, but not the “vehicle height”

 

[Boatman22]

Is there a way to change tire size on a 2023, 2500 with Alfa with out a bypass cable

 

[jimothy]

Is there a way to change tire size on a 2023, 2500 with Alfa with out a bypass cable

The HD forums are the place to ask, but I believe the answer is no: you need the bypass cable.

Fortunately, if the HDs are anything like the 1500s, the cables aren’t expensive, about $17.

In fact, from the Amazon descriptions, it sounds like the HD Rams use the same cable. (Trust but verify)

 

[Brutal_HO]

The HD forums are the place to ask, but I believe the answer is no: you need the bypass cable.

Fortunately, if the HDs are anything like the 1500s, the cables aren’t expensive, about $17.

In fact, from the Amazon descriptions, it sounds like the HD Rams use the same cable. (Trust but verify)

Any changes require a SGM bypass.

We do NOT use the same 12+8 cable or dongle/brick.

The SGM on the HD's is up behind the EVIC (cluster). We use a simple cable that plugs into the CANBUS blocks behind the headlight switch bezel.

Security Module Bypass | KaodTech

Will Ship 3-5 Business Days after OrderIf you have a 2018+ RAM and would like to perform diagnostics or make changes to the modules of your truck using tools like AlfaOBD or AutoEngenuity, this bypass is for you.Does this allow access to all modules?It has been tested connecting to the BCM and...

www.kaodtech.com

If he's OOS, Jimmy07 can build you one.

 

[Boatman22]

Thanks for in info. This will be for a friend that has a 2023 2500. I'll get with Jimmy to make a harness

 

[Adrian052]

How long did it take you to calibrate? I’ve tried to calibrate 3 times at about 2 hours each and it hasn’t calibrated so far at 1099 with stock tires. I’m using a launch system that has ADAS built in.

 

[Truckone176]

Is this something that is a common issue for lifted trucks with taller tires? Does this only affect air ride trucks?

 

[supadav11]

Does anyone know what scanner i would need to buy to recalibrate the ride height etc so I don't have to pay dodge

 

[scottmoyer]

I was able to resolve this issue on my own. I downloaded a level app for my phone and it also had an inclinometer option. The specs are to align the angle at -1.0 plus or minus .1 The app inclinometer only read to one decimal point, so I made sure to be on level ground and adjusted the screw on the FCW until it kept flickering between -.9 and -1.1. I left the cover off as I heard you need to drive about 30 miles and it will recalibrate itself if the angle is correct. After adjusting 3x, my alert cleared. Been good ever since. Just be patient.

 

[scottmoyer]

I wanted to update once again and say that my alerts are back on the dash. I popped the covers off and checked the angle, which was still the same, so I figured the truck angle wasn't level when I originally set it. Maybe close, but not level. So, I leveled my truck by using a 4' level on the bed rails and jacked up the rear until I was level. The inclinometer registered -1.4, so I adjusted to -1.0 again.

After starting the truck to put in the garage, the light was off. YAY. Drove for a week and the light came on again while driving in the rain. So, I found level ground with that 4' level and adjusted again! I haven't driven it yet, but I may go the dealer if it doesn't go away this weekend. I might actually have a bad module.