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?

Asked by for the 1991 Toyota Previa
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.
1 more answer
Ditto with Hal