GBDamo
19-06-2016, 10:36 AM
Hi All, new here so please be gentle.
Recently got the Passat back on the road after about six months on bricks due to an ERG and O2 sensor fault and lack of funds to repair.
During this time the battery died, dropped to <6V and would not re-charge so got a new one only to find the bonnet catch had seized. So, stripped, cleaned and re-greased the catch and took it in to resolve the O2/ERG issue and get an MOT.
Collected car from garage and all was well until about five miles then the ABS and Traction Control warning lights came on, so I went straight back to the garage. He plugged it in and it came up with Brake Control Module J540 fault which he then cleared.
I set off again and got most the way home before the same thing happened, this time I parked it on the drive and when I returned the fault had cleared it's self. But now, after paying a bit more attention, I've noticed that it seems to come on when the car reaches 50-60mph and then clears when the car is parked for a while. I can drive round all day in town with no issue but the minute I go on a an A road/motorway the warning lights come on.
I've been told it will require a new J540, and re-coding, which may have been fried due to the low voltage issues and while I can accept this I just wanted to make sure this is the issue and not the beginning of a long an convoluted wild goose chase.
Any thoughts would be very welcome.
Cheers
Damoin
Recently got the Passat back on the road after about six months on bricks due to an ERG and O2 sensor fault and lack of funds to repair.
During this time the battery died, dropped to <6V and would not re-charge so got a new one only to find the bonnet catch had seized. So, stripped, cleaned and re-greased the catch and took it in to resolve the O2/ERG issue and get an MOT.
Collected car from garage and all was well until about five miles then the ABS and Traction Control warning lights came on, so I went straight back to the garage. He plugged it in and it came up with Brake Control Module J540 fault which he then cleared.
I set off again and got most the way home before the same thing happened, this time I parked it on the drive and when I returned the fault had cleared it's self. But now, after paying a bit more attention, I've noticed that it seems to come on when the car reaches 50-60mph and then clears when the car is parked for a while. I can drive round all day in town with no issue but the minute I go on a an A road/motorway the warning lights come on.
I've been told it will require a new J540, and re-coding, which may have been fried due to the low voltage issues and while I can accept this I just wanted to make sure this is the issue and not the beginning of a long an convoluted wild goose chase.
Any thoughts would be very welcome.
Cheers
Damoin