Nanacom and windows switch pack

My windows switch pack has packed up and im nowhere i can replace it (in China) but i have got a nanocom evo which i can operate the windows from but when i plug it into the OBD plug it will not fire up and i have to plug it into a power socket before it will do anything then i can get a limited amount of diagnostics but i can operate my windows which is the main thing at the moment does anyone else have the same problem with their Nanocom or is it the power supply from the plug on the car the fault? and does anyone know which pin the supply is.
At the moment I am on a tight schedule and having to do 400km a day so don't have much time to check things out.
Have done about 11000miles on this trip so far and fitted Michelin Lattitude cross tyres and very happy with them dont show any signs of wear and have used them in mud but not very far in mud and also some off road over gravel and sharp stones but the hardest time they have had were in russia where the sealed roads had pot holes the size of Olympic swimming pools with no warning they were there.

I would check the OBD socket and the fuses for the OBD power.

Pin 16 on the OBD socket for 12V fed from under bonnet fuse box F33.

Its a 5 amp fuse in under the bonnet.

The fact you have limited diagnostics suggest a corroded obd socket.
Have the heater o rings been replaced ? this fluid leak can corrode the obd harness.

The heater O rings were replaced and not leaking now and all fuses have been checked will check the power feed on pin 12. It was working ok 2 days before switch pack decided to give up the ghost .I will also clean the OBD socket but cant see any corrosion there and cant see any corrosion on the fuse box and no burning smell .As I said I have to use the car every day for about 400 km to get out of China and into Mongolia and then back into China when there are more rest days and have a longer Visa. Also the temperatures here are in the high thirtys with no shade and hopefully that will ease to when we get to Mongolia. Yesterday was the start of the China equivelent of the Dakar rally here in Turpan. But its not quite up to Dakar standard as its only Motor Bikes and the biggest seem to be 250 although there was at least one 400 .

ovalandrover said:

The heater O rings were replaced and not leaking now and all fuses have been checked will check the power feed on pin 12. It was working ok 2 days before switch pack decided to give up the ghost .I will also clean the OBD socket but cant see any corrosion there and cant see any corrosion on the fuse box and no burning smell .As I said I have to use the car every day for about 400 km to get out of China and into Mongolia and then back into China when there are more rest days and have a longer Visa. Also the temperatures here are in the high thirtys with no shade and hopefully that will ease to when we get to Mongolia. Yesterday was the start of the China equivelent of the Dakar rally here in Turpan. But its not quite up to Dakar standard as its only Motor Bikes and the biggest seem to be 250 although there was at least one 400 .

Click to expand...

The wires corrode off the back of the OBD socket