DPF Reset and FIX the warning light on Mazda with Diesel Engine 

Mazda Flashing DPF Light Fix and reset Tutorial.
Why the DPF warning light goes on after oil change on my Mazda?
The DPF warning Light will blink every 20.000km as a reminder to change the engine oil. So it has to be reseted after every oil change.
How to clear DPF warning light at home and save?
It is very easy DIY procedure. No tools needed just a 1.5m long cable.
After an Oil change you have to reset the DPF/Service Indicator.
This particular model is MAZDA 5, 2009, 2.0 DIESEL, 103Kw/140PS but you could reset oil change light on all MAZDA Diesel 2005-2014.
In these models the DPF Light functions also as a Service Light (reminder to change the engine oil).