Ok so latest possible mistake. 2010 VW Golf MK6 GTD with some form of immobiliser fault.
Car previously CAT C in 2016 repaired and in use until September 2020, since then it hasn't had an MOT so may have been parked up. Previous owner claims the battery went flat and since then the car won't start.
Brand new battery fitted, tried to read codes, no communication.
Key in ignition, turn ignition on and the car displays "button for driver assistant defective" and then "brake fault", the latter I have seen on an Audi A3 with an immobiliser fault requiring the clocks to be fixed. Try to start the car and it runs for a second then cuts out which does indicate an immobiliser fault however no immobiliser light is shown on the dash, possible internal fault?
OBD port not working so investigated fuses and found fuse 1 in the dashboard fuse module blown, from my info fuse 1 supplies MAF sensor, OBD port and PCV heater element. Fitted a new fuse and tried to communicate, still nothing. Tried to start the car, same symptoms and the fuse blows shortly after the "brake fault" is displayed.
Removed the clocks believing there is an internal fault. New fuse fitted with the clocks removed and this time it doesn't blow when the ignition is switched on and the car still starts for a second then cuts out. Does this actually suggest a fault with the clocks or does it suggest a fault with something after the clocks that doesn't blow the fuse with the clocks removed?
Any help much appreciated, it was a poor decision of mine to buy this car with currently 4 other cars on the go so I'm a little annoyed with myself however hopefully I'll learn something and can pass on the experience.
