Multiple DTC codes

[Martincraig]

Hi guys hope someone can help!! Whist driving home today the DSG went into neutral by itself!! Coil light came on , so coasted to a stop. Plugged it into my scanner, and it came up with a whole pile of fault codes, all of which were saying communication lost to various modules. Engine ECU, transmission , ECU, even the radio/speakers. Firstly I thought maybe the main ECU has thrown a fit!!
Anyway I cleared the codes and managed to get home with no issues.
Anyone with any ideas?? TIA

 

[DaveD]

Hi guys hope someone can help!! Whist driving home today the DSG went into neutral by itself!! Coil light came on , so coasted to a stop. Plugged it into my scanner, and it came up with a whole pile of fault codes, all of which were saying communication lost to various modules. Engine ECU, transmission , ECU, even the radio/speakers. Firstly I thought maybe the main ECU has thrown a fit!!
Anyway I cleared the codes and managed to get home with no issues.
Anyone with any ideas?? TIAView attachment 283450

I'm not smart enough to even attempt to diagnose your problem but I'd want to try to eliminate any easy and likely causes - I'd start by checking the main earth from battery to body for an intermittent earth failure, you could run a jump lead from the negative battery post to the body and see if the faults come back.

 

[Martincraig]

I'm not smart enough to even attempt to diagnose your problem but I'd want to try to eliminate any easy and likely causes - I'd start by checking the main earth from battery to body for an intermittent earth failure, you could run a jump lead from the negative battery post to the body and see if the faults come back.

Hi mate, that was going to be my first check tomorrow. I remember a few years ago I had a BMW X5, the dash lit up like a Xmas tree one day, it cut out, a whole raft of codes. Turns out it was the main earth strap to the chassis. A common problem on a lot of vehicles!!
Thanks for your help, will keep you posted