F150 Airbag Light Easy Fix for Code 27 Diagnosis

97 to 2003 F150 DIY Diagnosis and Fix for your Air Bag Light (code 27). 90% of the time its just the bulb has gone bad in the PAD module. The other times the module itself may be faulty in another way..remedied sometimes by a tap on the unit 'Fonzie style'
Hope this helps some of yall.
The light bulbs I used were purchased at Walmart and are Silvania 74LL.
Good luck with your Fix!