Headunit won't turn on after MDI install?

[shauno]

So I re-read Mav's post - and realised he might have meant "disconnect the batter, reconnect it & then wait 10 mins, then see if the RCD turns on" - so I tried that... and it didn't work either.

I'm fairly sure it's something to do with the CANBUS not being able to contact the radio module, but exactly what the cause (or fix) would be - I'm still stumped.

Anyone have any ideas on what to try?

Last resort is to take it to Derek or George & pay them to find & fix it - but that's money I had't planned on spending!

[bushnut]

have you checked you have got the can bus wires in the right place not the wrong way round. check the fuse in the back of the radio and the fuse in the fusebox under the bonnet next to the battery.

[99_FGT]

Random thought, check that you haven't activated the transport mode on the 500, and if you bought the 510 off someone they should have activated it.

[shauno]

Random thought, check that you haven't activated the transport mode on the 500, and if you bought the 510 off someone they should have activated it.

I checked that on the 510 (as I know which buttons to press) - didn't make a difference. My understanding is it'll still turn on in transport mode, but give a warning/error - the fact that the VAGCOM scan says it can't contact the Radio Module suggests it's not a transport-mode issue too.

have you checked you have got the can bus wires in the right place not the wrong way round. check the fuse in the back of the radio and the fuse in the fusebox under the bonnet next to the battery.

I checked the fuse in the engine bay (F19 from memory), and the fuse in the RCD510, but I haven't checked the RCD500 - will do tonight.

Yes, I checked the CANBUS wires are in the right place (as per the colour-codes listed in the wiring diagram) that came with the MDI - it's CAN-H orange-purple and CAN-L orange-brown. Unless the MDI instructions have the colours wrong! - EDIT: all the doco I can find suggest it's correct.

The one thing that confused me though is that a multimeter on CANBUS High (positive) and CANBUS Low (negative) gives -11V -> which I thought maybe should be +11V - anyone know the correct voltage & polarity?

[shauno]

Double-checked all the fuses - no issues - so I'm still stumped!

Next step is to book it in to be checked...

[shauno]

Booked in with George at VWVillage... I'll be interested to see what the fault is!

[shauno]

Bl**dy hell! Issue found & fixed by VWVillage straight away!

It turns out the two red power wires - Power Positive (15) & Display Power (11) - were swapped!

They're now doing the MDI/Bluetooth/RCD510 install for me, so I don't mess anything else up

[shauno]

Now it seems the Mic that came with the Bluetooth kit is faulty - has anyone got a spare they can loan/sell me?

Part number is 3B0 035 711 B

[Ryan_R]

Did a quick search:
Bluetooth Mike VW / Voice control / RNS510 RNS / MFD 3 (eBay item 180444436425 end time 06-Apr-11 05:37:49 AEST) : eBay Motors