Changing the front door sensors on 1991 Toyota Previa

Can you tell me how can i pull out the front door sensors of my van and replace it with new ones?

2 answers
Now your asking the right questions! How many posted did you put in here anyway? They are right in the door jam. Some have a large jam nut holding them others have a small screww holding them secure. The switch is about $20.00 at the dealer and take about 20 minutes to replace. Check them both, one may be stuck or jammed.
Ditto with Hal