Sponsored

Comma AI self driver assistant

EVO

Well-known member
First Name
Randy
Joined
Mar 8, 2025
Threads
2
Messages
84
Reaction score
53
Vehicles
2024 lightning flash
Occupation
electrician
That's the model I was on before upgrading to 5.0 and had the ping pong. Should I try that model on 5.0 and see if it's better or just jump to AJZ's suggestion of WD40?
Its the model I use and have no ping pong. Every vehicle ,and driver are different so try them all except tomb raider. That one is not good on fords.
Sponsored

 

DIEProphezeiung

Well-known member
First Name
Charlie
Joined
Apr 6, 2024
Threads
2
Messages
48
Reaction score
99
Location
Birmingham
Vehicles
23 Lightning XLT ER
Ordered. I'll update here when they come in on whether it fixed the issue or not.
I didn't consider the harness box itself going out. Now I'm gonna pop that thing open when I get back home and start probing around.
Okay, my new Comma harness has arrived, and even though I don't have the Lightning adapter yet, I've gone ahead and installed the harness and tried it with the USB cable that came with the new harness. It still doesn't work. I've gone ahead and tried eliminating points of failure again, and here's what I've found.
New harness with no USB plugged in = no truck errors
New harness + New USB = truck errors
New harness + New USB + Comma 3x = Truck errors and Canbus errors on Comma
New Harness + Old USB = no truck errors
New harness + Old USB + Comma 3x = Truck errors and Canbus errors on Comma

After inspecting the new, longer USB that came with the new harness, I've found a rather badly kinked spot, which could be causing the errors I'm seeing with the new cable. (pissed about that...) But even using the old shorter cable that seems not to throw errors without the comma plugged in, as soon as I plug in the comma, and even after waiting a while, the same old errors pop up on the truck and comma.
Other than waiting for the lightning adapter to come in, Ive tried all I can think of. im about ready to sell this damn comma and be done with it. At this point, it's a $1k paperweight.
 

chriserx

Well-known member
First Name
Chris
Joined
Oct 3, 2025
Threads
4
Messages
761
Reaction score
592
Location
Louisiana
Vehicles
2025 Ford Lightning Flash Job 2 😭
Okay, my new Comma harness has arrived, and even though I don't have the Lightning adapter yet, I've gone ahead and installed the harness and tried it with the USB cable that came with the new harness. It still doesn't work. I've gone ahead and tried eliminating points of failure again, and here's what I've found.
New harness with no USB plugged in = no truck errors
New harness + New USB = truck errors
New harness + New USB + Comma 3x = Truck errors and Canbus errors on Comma
New Harness + Old USB = no truck errors
New harness + Old USB + Comma 3x = Truck errors and Canbus errors on Comma

After inspecting the new, longer USB that came with the new harness, I've found a rather badly kinked spot, which could be causing the errors I'm seeing with the new cable. (pissed about that...) But even using the old shorter cable that seems not to throw errors without the comma plugged in, as soon as I plug in the comma, and even after waiting a while, the same old errors pop up on the truck and comma.
Other than waiting for the lightning adapter to come in, Ive tried all I can think of. im about ready to sell this damn comma and be done with it. At this point, it's a $1k paperweight.
What software are you running, and are you sure you're at the right plug, there are at least 4 that fit the harness.
Edit: Without the adapter you are going to get truck errors. Without the lightning adapter, if you plug the comma harness in and leave the USB unplugged you should get no errors on the truck, then you plug the comma in and turn on the truck you should get errors on the truck.
 
Last edited:

Ajzride

Well-known member
First Name
Alan
Joined
Jun 6, 2021
Threads
4
Messages
808
Reaction score
895
Location
Houston
Vehicles
21Mach-E / 65Mustang / 21PB 502A 157"
Occupation
Eng
Okay, my new Comma harness has arrived, and even though I don't have the Lightning adapter yet, I've gone ahead and installed the harness and tried it with the USB cable that came with the new harness. It still doesn't work. I've gone ahead and tried eliminating points of failure again, and here's what I've found.
New harness with no USB plugged in = no truck errors
New harness + New USB = truck errors
New harness + New USB + Comma 3x = Truck errors and Canbus errors on Comma
New Harness + Old USB = no truck errors
New harness + Old USB + Comma 3x = Truck errors and Canbus errors on Comma

After inspecting the new, longer USB that came with the new harness, I've found a rather badly kinked spot, which could be causing the errors I'm seeing with the new cable. (pissed about that...) But even using the old shorter cable that seems not to throw errors without the comma plugged in, as soon as I plug in the comma, and even after waiting a while, the same old errors pop up on the truck and comma.
Other than waiting for the lightning adapter to come in, Ive tried all I can think of. im about ready to sell this damn comma and be done with it. At this point, it's a $1k paperweight.
This is normal until you get the coupler.
 
  • Like
Reactions: EVO

EVO

Well-known member
First Name
Randy
Joined
Mar 8, 2025
Threads
2
Messages
84
Reaction score
53
Vehicles
2024 lightning flash
Occupation
electrician
Okay, my new Comma harness has arrived, and even though I don't have the Lightning adapter yet, I've gone ahead and installed the harness and tried it with the USB cable that came with the new harness. It still doesn't work. I've gone ahead and tried eliminating points of failure again, and here's what I've found.
New harness with no USB plugged in = no truck errors
New harness + New USB = truck errors
New harness + New USB + Comma 3x = Truck errors and Canbus errors on Comma
New Harness + Old USB = no truck errors
New harness + Old USB + Comma 3x = Truck errors and Canbus errors on Comma

After inspecting the new, longer USB that came with the new harness, I've found a rather badly kinked spot, which could be causing the errors I'm seeing with the new cable. (pissed about that...) But even using the old shorter cable that seems not to throw errors without the comma plugged in, as soon as I plug in the comma, and even after waiting a while, the same old errors pop up on the truck and comma.
Other than waiting for the lightning adapter to come in, Ive tried all I can think of. im about ready to sell this damn comma and be done with it. At this point, it's a $1k paperweight.
Without the resistors,,"the adapter from tony" you will get errors.
 

Sponsored

darkameba

Member
First Name
Zach
Joined
Sep 29, 2025
Threads
0
Messages
6
Reaction score
6
Location
Michigan
Vehicles
2022 F150 Lightning
Do you have the dock from @Ajzride? I can send you the dock integration version as a replacement so you dont have to use that male to male adapter.
Finally had time over the weekend to swap out the lightning adapter to the new one you sent. It was indeed the problem. Everything works perfectly now. Thank you so much for all of the help!
 

Ajzride

Well-known member
First Name
Alan
Joined
Jun 6, 2021
Threads
4
Messages
808
Reaction score
895
Location
Houston
Vehicles
21Mach-E / 65Mustang / 21PB 502A 157"
Occupation
Eng
Comma 4 coming. Seems kinda meh. comma.ai — make driving chill
It has theh same chipset as the Comma3x, it's just a new small form factor. Which is nice in some ways, and not so much in others. Given all the cool stuff @tonesto7 stuck on the UI for us (radar overlay, hybrid battery status etc), you would lose all that with a tiny screen.

They also announced an external GPU which will work with the Comma3x as well. To me, that is the big announcement. Should allow the models to solve much further out.
 

chriserx

Well-known member
First Name
Chris
Joined
Oct 3, 2025
Threads
4
Messages
761
Reaction score
592
Location
Louisiana
Vehicles
2025 Ford Lightning Flash Job 2 😭
It has theh same chipset as the Comma3x, it's just a new small form factor. Which is nice in some ways, and not so much in others. Given all the cool stuff @tonesto7 stuck on the UI for us (radar overlay, hybrid battery status etc), you would lose all that with a tiny screen.

They also announced an external GPU which will work with the Comma3x as well. To me, that is the big announcement. Should allow the models to solve much further out.
Radar overlay is probably my favorite feature, especially the speed of the front vehicle.
 

Sponsored

Ajzride

Well-known member
First Name
Alan
Joined
Jun 6, 2021
Threads
4
Messages
808
Reaction score
895
Location
Houston
Vehicles
21Mach-E / 65Mustang / 21PB 502A 157"
Occupation
Eng
Radar overlay is probably my favorite feature, especially the speed of the front vehicle.

It is my favorite, but my family hates it. Because now I know exactly how slow they are going when I start complaining.
 

chriserx

Well-known member
First Name
Chris
Joined
Oct 3, 2025
Threads
4
Messages
761
Reaction score
592
Location
Louisiana
Vehicles
2025 Ford Lightning Flash Job 2 😭
Hey, actually, does anyone know if there is a way to tune the following deceleration rate? I always have maximum follow distance set so it's extremely unnecessary to slam on the brakes when my lead car gets brake checked. Sure, they rapidly decelerated and the comma should slow but I don't want the follow distance adhered to so rigidly.
 

Ajzride

Well-known member
First Name
Alan
Joined
Jun 6, 2021
Threads
4
Messages
808
Reaction score
895
Location
Houston
Vehicles
21Mach-E / 65Mustang / 21PB 502A 157"
Occupation
Eng
Hey, actually, does anyone know if there is a way to tune the following deceleration rate? I always have maximum follow distance set so it's extremely unnecessary to slam on the brakes when my lead car gets brake checked. Sure, they rapidly decelerated and the comma should slow but I don't want the follow distance adhered to so rigidly.
No, that is coming out of the model. It's the number one reason I don't use OP long and stick to Ford ACC.
 

PJnc284

Well-known member
Joined
Sep 30, 2024
Threads
0
Messages
1,214
Reaction score
1,390
Location
Garner, NC
Vehicles
2023 Ford F150 Lightning Lariat ER
Outside of the random brake checks for no apparent reason, I like the OP long over the stock Ford ACC on the Lightning. Ford ACC always seems to pull up right to the rear bumper of the lead car and slams on the brakes anytime a car merges in front of you or slows to make a turn
 

EVO

Well-known member
First Name
Randy
Joined
Mar 8, 2025
Threads
2
Messages
84
Reaction score
53
Vehicles
2024 lightning flash
Occupation
electrician
It is my favorite, but my family hates it. Because now I know exactly how slow they are going when I start complaining.
🤣
Sponsored

 
 







Top