HV battery disconnect - software update

[5teep]

I had the dreaded HV cut off today but unlike other times it's happened, nothing I did would clear it.

Called the AA out, he checked the 12v battery ok then linked into the obd2 and found no errors (he said you never do see an error for this fault) but he cleared the codes anyway and presto, the car came to life.

He reckons there's a fault that might show up on MGs software but not on generic testers. Clearing the fault codes also clears the invisible error.

The other thing he told me and the reason for this post is that there's a software update for the MG5 that (he says) gets rid of the HV battery disconnect issue.

 

[BugEyed]

Oh No! Think of all the 10mm spanners that will be redundant.
Interesting that the communication comes via an AA mechanic and not via MG.

 

[Quinn Bliss EV]

Yes, there was a bulletin to dealers to instruct them to update the firmware for all electronic control units when servicing. More details on the MG podcast.

 

[5teep]

Oh No! Think of all the 10mm spanners that will be redundant.
Interesting that the communication comes via an AA mechanic and not via MG.

Even the 10mm didn't work this time for me (