2009 C5 handbrake error message

[DickieG]

I'd start with clearing all the faults then carry out a BSI reset and see what happens from there, as mentioned it appears that there's been a current issue that has upset a number of items, if the fault reoccurs then I'd investigate further rather than get too involved spending hours looking for something that is no longer there.

[osx]

Sticky cleared all the faults but haven't carried out the BSI reset yet - need to write everything down and do some test runs first!

[osx]

It was the b#$£#4%$ brake switch. Replaced it and everything is fine now.

[Stickyfinger]

Great...FIXED but how did you find out it was the switch ?

[osx]

Tried the cheapest option first

Saying that, I would feel more confident once nothing comes up after a week of driving.

[Stickyfinger]

Ahhh, a good guess then, good hit


..as said, pop in any time and we can clear them all now.

[RichardW]

Ours got better for a while after I changed the brake light switch, but then it deteriorated again. Given the faults on lack of speed info to the ECUs, I suspect you will be after a replacement board soon......

[Stickyfinger]

Richard, is there any way to check it to see/what to look for on a failing board ?

[RichardW]

Not as far as I know - the fact that there is a loss of coms between ECUs seems to be the smoking gun. I read a few posts about it in various places, but although quite a few had been changed, there was nothing obvious in failure. It might just be a dodgy chip on the board.

[osx]

If its the fuse box I might as well keep an eye for one and have it as a backup.

[osx]

Did another diagnostic today

U1213 - fault in the vehicle speed information received by the CAN from the ABS or ESP ECU
U2005 - triggering (vehicle speed receipt anomaly)

nothing with the handbrake this time

[Stickyfinger]

Did another diagnostic today

U1213 - fault in the vehicle speed information received by the CAN from the ABS or ESP ECU
U2005 - triggering (vehicle speed receipt anomaly)

nothing with the handbrake this time

U1212 @ Is not the AntiLock/ESP system the one that controls/actions the Anti-roll-Back system....which is the original fault message. ??

[osx]

Cleared them all and will do another diagnostic tomorrow. Tried to do a BSI reset but chickened out half way when the window started going up while I was outside the car with keys on the ignition.

[Stickyfinger]

LOL, that should not happen...

[DickieG]

Cleared them all and will do another diagnostic tomorrow. Tried to do a BSI reset but chickened out half way when the window started going up while I was outside the car with keys on the ignition.

More than likely just the anti trap activated, let it sort itself out and away you go.