I have an old 1998 Polo engine AEE. The air bag warning light came on and VCDS stated a fault code 65535. Looking up the fault guide in Elsawin, it suggests that the module needs to be replaced. I hope to use a second hand module. I have removed the module from under the central air vents, (what a pain) and note the part number 1J0 909 603 with no letter after this number. There is also no index number stated which most second hand units tend to state.


My questions are,
Can I use a second hand module.
Does the index number matter as I dont have one marked on my module.
Does the second hand module have to be coded by VCDS and
Finally is it easy to do.


If I can't fix this then the car without costing too much, it will be going to the scrap yard next year when the MOT runs out.


Thank you.
20201230_174052[1].jpg