P38A BECM error

roberto2456 said:

Hi Everyone

Thanks in advance for any help, i came up with an idea to use the power coming in to my rear view mirror to run a dash-cam as the mirror didn't dim any more anyway, i didn't see the harm in it.

so i was using my multi-meter to work out what's what i worked out it has a live, reverse and an earth, when checking the earth i heard a beep and so i stopped and plugged the mirror back in. however, it looks like by doing this i have made the BECM think there is an earth fault having no errors before on the dash now having fuse 6 (the mirror) has failed gearbox fault and abs fault.

I checked fuse 6 its fine but replaced anyway and i can't get this to go away any help is greatly appreciated, if i do a hard restart e.g remove battery connection will this resolve the issue? or have i screwed it?

Cheers

Click to expand...

roberto2456 said:

Thanks for the replies,

Datatek, Its not too high a demand it uses a usb phone type charger so 5v and a few people have done it in other vehicles without issue.

Wammers, its a 1996

Grrrrrr, thanks for that i will give it a try on thurs and post back......... but i hope i am lucky and it unfrigs itself.

Cheers

Click to expand...

roberto2456 said:

Thanks for the replies,

Datatek, Its not too high a demand it uses a usb phone type charger so 5v and a few people have done it in other vehicles without issue.

Wammers, its a 1996

Grrrrrr, thanks for that i will give it a try on thurs and post back......... but i hope i am lucky and it unfrigs itself.

Cheers

Click to expand...

wammers said:

Three wires to mirror Pin 1 White/Purple 10 amp power from fuse 6. Pin 2 Black Ground. Pin 3 Brown/Blue to pin 20 on plug C326 BECM. You may have screwed the electronics in the mirror head.

Click to expand...

Saint.V8 said:

Is it the only service from Fuse 6?

Click to expand...