Q: p1491 code
on 1996 Dodge Caravan

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
radiator fan won't comw on
(2) Answers
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If the fans are not coming it could be as simple as a bad fuse. the fans go bad also. The relay rarely fails but they do sometimes.

In the fuse box, look for a 40amp fuse (fuse #4) replace it if it is bad, if it blows again then one of the fans is shorted or there is a short in the wiring.

A simple way to check the relay is to swap it with a different relay in the fuse box (of the same type)

Hope this helps...

Robert Grove