U0028 Vehicle Comm Bus A

[homerv6]

I'm new to this so please bear with me :)

Hi

I have a problem with my 2003 C3 1400 Desire. The odometer,speedo,rev counter are not working and all the warning lights are on when running. The backlighting is on all the time and stays on when engine running { In fact all the lot light light up when opening any door without turning ignition on but go off after 1 minute}.

Put a code reader on it and DTC U0028 Vehicle communication bus A comes up???

I have purchased a replacement instrument cluster which i have yet to fit because i was told the unit failing is a common fault??

Everything else is fine with the car and starts instantly.

 

Thank you

Edited August 3, 2014 by homerv6

[paul.h]

I will need to think about the problem, but if you are going to try a used cluster, beware that the car may adopt the higher mileage of the exisiting cluster (I think possibly held by the bsi) or the replacement one if this is higher.

[homerv6]

Hi

Thanks. it's got everyone puzzled.

As for the mileage thing, the old one had 39300 on it if i remember right and the new one has 41200 so pretty lucky in that respect :)

[homerv6]

Not lucky at it seems as the replacement BSI i had to purchase being the main fault had 100,000 stored in it and now my c3 has this mileage on the clock Sigh!

The instrument cluster was no good anyway but it seems the BSI stores all the mileage.

Edited August 12, 2014 by homerv6