My spotlights are switch on by a rely which is triggered from the main beam wire from the passenger side headlight.

I wanted to test them using a switch instead and wire messing about accidently feed a 12v feed into the main beam wire.

I heard a quick noise so checked the side light and the LHS is no longer working as well as the headlight.

I then tried to start the car and it will not start :9 The warning triangle is illuminated on the dash and a message HDC Fault on the screen in the dash.

Hmmmm me thinks, somit. I then connect my ODBII reader and its says there is no link.

I have checked the fuses under the bonnet next to the battery plus the ones behind the glove box and they seem all ok.

Battery is showing 12v

So any idea what next to test?

Very first thing I'd be doing is a hard reset by disconnecting the battery and leaving it overnight.

Then, once you've reconnected it in the morning you can start fault finding.

Cheers for the quick reply

Will the rest affect anything. I assume radio chanels will be forgotten but anything else

Check F17 and F18 from the engine room fuse box.
They are 60 amps so they look a little different.
Take them out and check thoroughly, with a multimeter, not just visually.

Last edited by alex_pescaru on 10th Dec 2015 8:00 pm. Edited 1 time in total

Nope.

You'll have to reset the "one touch close" electric windows, but that's easy enough (just do a search as I can't remember the button press sequence off the top of my head).

Everything else will be fine.

Out of interest why does it need to left overnight?

If thtas the fuebox next to the battery there are no 60A fuses

A little more info. To get the power for the relay it will go thro a switch I have installed inside the vehicle. All I needed was a 12v power supply to the switch and then onto the realy. I found a 12v supply under the seat, the is a large connector block held in with a screw and one if the small brown wires going to it had a 12v supply. The is what I fed, accidentally to the main bean circut. Now there is now 12v supply coming out of that wire which would suggest a fuse but I have visably checked all the fuses, boot, passenger footwell and engine bay.

Last edited by petrolhead on 10th Dec 2015 8:28 pm. Edited 1 time in total

It doesn't particularly - just for a while to allow any residual current in any systems to dissipate.

Given the time of day, "overnight" just seemed natural. 30 mins or so should easily do the trick......

Left battery diconnected and now reconnected, still got the problem

Update

Rechecked the fuses in the passenger compartment with a multi meter and found 1 5amp fuse blown, so replaced it but still not starting. Also notices my feed I was going to use now has 12 volts again.

Bettery now at 11.5v so disconnected it and put my battery condition onto the battery and will see what happens tomorrow

Have you done the hard reset?

Hi

The light problem was in fact me, I forgot to plug them back in.

Yes just recconected it this moring and still the same problem.

Whats worrying is the ODBII is unable to get a link to the ECU

are the lights CANBUS driven, could you have accidentally powered that line?
Hope you have an cheap / easy fix. 

Possibly powered the canbus. Feed the high beam wire a 12v feed

Somehow me thinks this will not be a cheap fix

alex_pescaru wrote:

Check F17 and F18 from the engine room fuse box.
They are 60 amps so they look a little different.
Take them out and check thoroughly, with a multimeter, not just visually.

The 60A fuses are under a cover on the battery side of the fuse box and are vertical,

See my posting at http://www.freel2.com/forum/topic24830.html for pictures.