Comma AI self driver assistant

[HornetRaider]

When you have the "start car" message, can you access the settings menu?

If you can access the settings menu, manually choose the Lightning as your vehicle.

Yes I can. I was able to select the vehicle through sunnylink as well.

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[B177y]

Yes I can. I was able to select the vehicle through sunnylink as well.

Still getting the "Start Car" message with that?

 

[HornetRaider]

Still getting the "Start Car" message with that?

Yes unfortunately.

 

[B177y]

Thank you for the suggestion. I tried every possible scenario just now. Kept orientation 1 on the mount and flipped between 1 and 2 on the harness. Then flipped on the mount and tried 1 and 2 on the harness. Same issue.

I'm not totally following your descriptions here...

Did you flip the USB plug 180 deg (unplug one end, flip 180, plug back in)?

Try one end of the long cable, start truck and let Comma boot up, see if there's any change. If no change, do the same thing on the other end of the long USB. Make sure that when you do this that you really force the USB plug into the receptacle, like uncomfortable force. These have been known to be super finicky.

Make sure the lightning bolt icon on the resistor coupler faces towards the truck and the Comma icon towards the Comma.

If still no joy, try the 180 flip on the short cable.

Make sure both ends of the Comma harness are also uncomfortably forced together until they click on the jacks.

Make sure that your harness is connected into the black plug of the IPMA, not the gray one.

After that, I'm stumped.

I'll give @Ajzride the bat-signal now....

 

[Ajzride]

Yes unfortunately.

The start car message means it is not detecting the 12v ignition signal on pin 12 of the harness. Usually it's due to an incompatible USB cable (lower quality cables don't have all the wires terminated). If you are using the comma supplied cable, it could just be a bad USB cable. To narrow it down between the harness and the USB cable, hook the device up under the dash using only the short USB-C cable that comma ships with all units. You can't drive like this, because the cable is too short to reach the windhsield, but you can tell if the "start car message" goes away.

 

[HornetRaider]

I'm not totally following your descriptions here...

Did you flip the USB plug 180 deg (unplug one end, flip 180, plug back in)?

Try one end of the long cable, start truck and let Comma boot up, see if there's any change. If no change, do the same thing on the other end of the long USB. Make sure that when you do this that you really force the USB plug into the receptacle, like uncomfortable force. These have been known to be super finicky.

Make sure the lightning bolt icon on the resistor coupler faces towards the truck and the Comma icon towards the Comma.

If still no joy, try the 180 flip on the short cable.

Make sure both ends of the Comma harness are also uncomfortably forced together until they click on the jacks.

Make sure that your harness is connected into the black plug of the IPMA, not the gray one.

After that, I'm stumped.

I'll give @Ajzride the bat-signal now....

What you’re explaining on the usb flipping is what I did.
On the resistor and lightning and comma symbols, I’m not seeing those. It’s enclosed within the 3d printed case as I received it from bluepilot. Can you elaborate on that one?

i confirmed it is on the black plug, 2 plugs up from the fiber optic lines (not the gray one).

 

[HornetRaider]

The start car message means it is not detecting the 12v ignition signal on pin 12 of the harness. Usually it's due to an incompatible USB cable (lower quality cables don't have all the wires terminated). If you are using the comma supplied cable, it could just be a bad USB cable. To narrow it down between the harness and the USB cable, hook the device up under the dash using only the short USB-C cable that comma ships with all units. You can't drive like this, because the cable is too short to reach the windhsield, but you can tell if the "start car message" goes away.

wow. Thank you for the suggestion. Tried the short usb, turned the truck on, and it immediately turned the camera on and asked me to start driving.
What usb do you recommend for the long one to fix this issue?

 

[Ajzride]

It has to be a USB 3.2 gen2. Don't buy hype about GBs of transfer speed or Watts of power delivery. I use this one regularly.

https://www.amazon.com/KMMXXCPM-Tra...&sprefix=usb+c+3.2gen2+3m,aps,218&sr=8-5&th=1

 

[HornetRaider]

It has to be a USB 3.2 gen2. Don't buy hype about GBs of transfer speed or Watts of power delivery. I use this one regularly.

https://www.amazon.com/KMMXXCPM-Transfer-Charging-Compatibile-Smartphone/dp/B0DQLGC8N6/ref=sr_1_5?crid=3G2YSMU0W7YWU&dib=eyJ2IjoiMSJ9.3jPVaJfLiCYUraUhR2E6RB4X3BmzgPHMD9VroN4E6Ti-WRNO3rpIWKbnRqxnxf9cqIVcZ3twT_m4OcfcE0aUSYBgePfVkUuHDlIyLHQTchWR5M_c-kRxZgScKhnXPyfd9OdtS1VAwODkB0gEagHJnwQiPCRQf7Rpf6D_Uc0KGgZi1VOWLXC3nM17Hvpvmji6kR9fm1B4oQsGL9BSkmbO1i1o6MwbMJkj5mdrAWNKGuU.IeMaxtwS7n-6cBvwoU3YGdCWccAKbamFeGSDQctisNA&dib_tag=se&keywords=USB+C+3.2Gen2+3m&qid=1781236880&sprefix=usb+c+3.2gen2+3m,aps,218&sr=8-5&th=1

Really appreciate you. I was going nuts chasing the wrong rabbit hole.

 

[B177y]

What you’re explaining on the usb flipping is what I did.
On the resistor and lightning and comma symbols, I’m not seeing those. It’s enclosed within the 3d printed case as I received it from bluepilot. Can you elaborate on that one?

i confirmed it is on the black plug, 2 plugs up from the fiber optic lines (not the gray one).

Glad Ajz got it sorted.

The docks with the integrated coupler are already oriented correctly so no need to worry about that. The standalone couplers have marks to orient them in the correct direction.

Looks like a new USB and you be on the road

 

[HornetRaider]

Glad Ajz got it sorted.

The docks with the integrated coupler are already oriented correctly so no need to worry about that. The standalone couplers have marks to orient them in the correct direction.

Looks like a new USB and you be on the road

Thanks for sending him the signal!

 

[Ajzride]

wow. Thank you for the suggestion. Tried the short usb, turned the truck on, and it immediately turned the camera on and asked me to start driving.
What usb do you recommend for the long one to fix this issue?

While you are waiting on the new USB cable you could test the Comma4 without the dock and just plug the long USB straight into the C4.. I use a USB testor on all the components before I assemble the dock, but since I don't have the bluepilot C4 at the moment (Anthony has ours), I can't actually test the assembly.

 

[HornetRaider]

While you are waiting on the new USB cable you could test the Comma4 without the dock and just plug the long USB straight into the C4.. I use a USB testor on all the components before I assemble the dock, but since I don't have the bluepilot C4 at the moment (Anthony has ours), I can't actually test the assembly.

I sent the required specs of the cable to our company's IT. He said he has a cable that fits the bill. Going to try it at lunch direct to the C4 to confirm, then to the dock, and if that works, I'll go through the trouble of tucking the wire again.

 

[Shmoe]

I sent the required specs of the cable to our company's IT. He said he has a cable that fits the bill. Going to try it at lunch direct to the C4 to confirm, then to the dock, and if that works, I'll go through the trouble of tucking the wire again.

They're super finicky. If it doesn't work go with ajzride's and you'll be gold -- That's what happened to me.

 

[HornetRaider]

They're super finicky. If it doesn't work go with ajzride's and you'll be gold -- That's what happened to me.

Didn't work, unfortunately. I ordered the cable ajzride recommended. Should be in tomorrow.

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