Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: olm on 29 May 2025, 04:19:49

Title: Dtc u2100 and 2108
Post by: olm on 29 May 2025, 04:19:49
Hello everyone.
I've recently been seeing these fault codes intermittently. The ABS and TCS lights come on, and the speedometer stops displaying.
It seems to be a CAN bus issue. Could it be the ABS sensor that measures speed, or should I look at something else?
Thanks.
Title: Re: Dtc u2100 and 2108
Post by: TheBoy on 29 May 2025, 14:20:53
Now about to look up codes currently, but what codes are in the gearbox and abs ecus?
Title: Re: Dtc u2100 and 2108
Post by: olm on 29 May 2025, 17:02:35


Now about to look up codes currently, but what codes are in the gearbox and abs ecus?


None, only those DTCs appear. It's manual
Title: Re: Dtc u2100 and 2108
Post by: TheBoy on 30 May 2025, 14:01:08


Now about to look up codes currently, but what codes are in the gearbox and abs ecus?


None, only those DTCs appear. It's manual
Is your reader capable of reading ABS, or is it only a generic OBDII reader?
Title: Re: Dtc u2100 and 2108
Post by: olm on 01 June 2025, 12:47:00


Now about to look up codes currently, but what codes are in the gearbox and abs ecus?


None, only those DTCs appear. It's manual
Is your reader capable of reading ABS, or is it only a generic OBDII reader?

It's a Delphi system, but it can't find anything in the brakes section. Now I've seen P0500, which is the speed sensor. Could you tell me which sensor it is? I imagine it's one of the ABS sensors?
Title: Re: Dtc u2100 and 2108
Post by: TheBoy on 01 June 2025, 14:25:11
You need to read the ABS system to discover what is causing it, and if it is one of the ABS wheel sensors.

The engine ECU complaining about road speed will be a sign the ABS isn't happy with something, but you do need to interrogate the ABS to find out what.
Title: Re: Dtc u2100 and 2108
Post by: olm on 01 June 2025, 17:09:47
You need to read the ABS system to discover what is causing it, and if it is one of the ABS wheel sensors.

The engine ECU complaining about road speed will be a sign the ABS isn't happy with something, but you do need to interrogate the ABS to find out what.

Wow, I can't find anything in the brakes section. I'll ask a friend who has an Autel machine to see if that one can read it.
Title: Re: Dtc u2100 and 2108
Post by: Doctor Gollum on 01 June 2025, 21:02:09


Now about to look up codes currently, but what codes are in the gearbox and abs ecus?


None, only those DTCs appear. It's manual
Is your reader capable of reading ABS, or is it only a generic OBDII reader?

It's a Delphi system, but it can't find anything in the brakes section. Now I've seen P0500, which is the speed sensor. Could you tell me which sensor it is? I imagine it's one of the ABS sensors?
0500 is a general fault. The specific sensors will have a number allocated to them 0xx1, 0xx2 etc
Title: Re: Dtc u2100 and 2108
Post by: olm on 07 June 2025, 03:39:11


Now about to look up codes currently, but what codes are in the gearbox and abs ecus?


None, only those DTCs appear. It's manual
Is your reader capable of reading ABS, or is it only a generic OBDII reader?

It's a Delphi system, but it can't find anything in the brakes section. Now I've seen P0500, which is the speed sensor. Could you tell me which sensor it is? I imagine it's one of the ABS sensors?
0500 is a general fault. The specific sensors will have a number allocated to them 0xx1, 0xx2 etc
Thanks, my friend told me he also has the O P com,   let's see if I'm lucky and can see it
Title: Re: Dtc u2100 and 2108
Post by: TheBoy on 07 June 2025, 19:29:56
That reader should be able to interrogate the ABS.  You can also view live data off each sensor with that, by going into "Measuring Blocks"