Omega Owners Forum

Chat Area => General Car Chat => Topic started by: Auto Addict on 12 June 2023, 12:28:59

Title: Astra K - again
Post by: Auto Addict on 12 June 2023, 12:28:59
Got a message come up on my display (it's a 1.4 Petrol) 'Service Vehicle Soon'.

Went and bought an iCarsoft Vauxhall V2 code reader.

If I try to read the ECM I get the following message ;-

Lost communication with DC/DC converter control module A on bus B.

It has no problems reading Mrs AA's 1.4 Sri.

Any ideas please.

It reads all other modules OK with no fault codes.
Title: Re: Astra K - again
Post by: STEMO on 12 June 2023, 12:55:10
Have a look on here, Barry, there's quite a bit of info

https://www.astrakforums.co.uk/
Title: Re: Astra K - again
Post by: STEMO on 12 June 2023, 12:59:09
On second thoughts, having read some of the replies, it merely means a non-emissions fault.
I usually just take it to my local indie, who is very reasonable for code reading, but I know you like to do this yourself  :-\
Title: Re: Astra K - again
Post by: Auto Addict on 12 June 2023, 13:35:23
On second thoughts, having read some of the replies, it merely means a non-emissions fault.
I usually just take it to my local indie, who is very reasonable for code reading, but I know you like to do this yourself  :-\

Thanks, yup, I've searched the forums, mainly happens on the diesels - glow plugs - no mention of it happening on a petrol.

I just hope that the ECM is not cream crackered.
Title: Re: Astra K - again
Post by: Auto Addict on 12 June 2023, 14:19:26
Anyone got access to Vauxhall/Opel technical service bulletins?
Title: Re: Astra K - again
Post by: Auto Addict on 12 June 2023, 14:27:09
On second thoughts, having read some of the replies, it merely means a non-emissions fault.
I usually just take it to my local indie, who is very reasonable for code reading, but I know you like to do this yourself  :-\

Not particularly, but I wouldn't trust any of the indies. around here, loads of bad reports, and the main dealer will be a rip off!
Title: Re: Astra K - again
Post by: STEMO on 12 June 2023, 14:39:07
On second thoughts, having read some of the replies, it merely means a non-emissions fault.
I usually just take it to my local indie, who is very reasonable for code reading, but I know you like to do this yourself  :-\

Thanks, yup, I've searched the forums, mainly happens on the diesels - glow plugs - no mention of it happening on a petrol.

I just hope that the ECM is not cream crackered.
Happened on mine 3 or 4 times, as you say, glow plug. But mine is a J, never happened on the wife's K.
Title: Re: Astra K - again
Post by: Auto Addict on 13 June 2023, 09:40:02
On second thoughts, having read some of the replies, it merely means a non-emissions fault.
I usually just take it to my local indie, who is very reasonable for code reading, but I know you like to do this yourself  :-\

Thanks, yup, I've searched the forums, mainly happens on the diesels - glow plugs - no mention of it happening on a petrol.

I just hope that the ECM is not cream crackered.
Happened on mine 3 or 4 times, as you say, glow plug. But mine is a J, never happened on the wife's K.

Looks like I'm going to have to bite the bullet and book it into the Stealers .
Title: Re: Astra K - again
Post by: Marks DTM Calib on 15 June 2023, 12:20:15
Surprised it has a DC to DC converter as I doubt its a PHEV or MHEV
Title: Re: Astra K - again
Post by: Auto Addict on 15 June 2023, 17:12:16
Surprised it has a DC to DC converter as I doubt its a PHEV or MHEV

As far as I'm aware it's neither.
Title: Re: Astra K - again
Post by: Auto Addict on 15 June 2023, 17:46:10
It will have a voltage converter though, or has that nothing to do with it.
Title: Re: Astra K - again
Post by: Auto Addict on 16 June 2023, 07:00:48
Surprised it has a DC to DC converter as I doubt its a PHEV or MHEV

Thinking about it, yes, strange message.
Title: Re: Astra K - again
Post by: Auto Addict on 16 June 2023, 08:33:52
I've found this :-

https://www.obd-codes.com/u0298#What%20Does%20That%20Mean?

Perhaps it will mean something to someone with more expertise and knowledge than me
Title: Re: Astra K - again
Post by: Marks DTM Calib on 16 June 2023, 08:35:50
Can you read live data?
Title: Re: Astra K - again
Post by: Auto Addict on 16 June 2023, 08:37:08
Can you read live data?

I think so, I'll have a go a bit later on, got to go out now.
Title: Re: Astra K - again
Post by: Auto Addict on 16 June 2023, 08:44:28
Mark, I've sent you a Whats App.
Title: Re: Astra K - again
Post by: Auto Addict on 16 June 2023, 17:07:18
iCarsoft has managed to clear the 'Service Vehicle Soon' message, haven't had it come up for 4 days now.

Still won't communicate with the ECM.
Title: Re: Astra K - again
Post by: Auto Addict on 17 June 2023, 06:56:48
Can you read live data?

Had a look at live date, gobbledegooch to me I'm afraid.