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Discussion Starter #1
Not sure if anyone here has or is having this issue. About every week/ week and a half, my wiper fuse pops (used or not). switch is fine, wiring "seems ok" and amps on circuit are below the 20 amp rated fuse. wipers work when shutting off(checking to be sure) then on start up next day, fuse popped.[mad]
 

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Could be drawing too much on start up intermittently (more all the time, but enough to pop the fuse on occasion).

If you can find a plug in circuit breaker it'll save some of the PITA until you either find a wiring problem or replace the motor.
 

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About a month or 2 ago, someone here had a similar problem. In that case, the fault was caused by the wiper motor. There is a single wire that goes from a fuse and then directly to the motor; yes, without going to the on/off switch.

Fuse blowing without ever turning on the wipers pretty much confirms that you have the same/similar problem as the other guy. Some really strange wire damage could also do this tho.

If you remove the grey cowling that covers the wiper motor, then inspect wiring for damage. Disconnect electrical connector from motor; turn on car and wipers (wipers will not move). If fuse ever blows while motor was disconnected, motor is not the problem.

Gotta do this and maybe some multimeter testing, but shopping around for a new/used wiper motor is likely in your future.
 

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Probably an issue with the park switch inside the motor assembly, getting stuck shorting the brushes to ground. That single wire mentioned in Marde's post is responsible to park the wipers when switched off and to induce regenerative braking of the motor to bring it to an immediate stop.

You can try operating the motors without load (i.e. removing the wipers) to see if this is an issue with inrush or stall currents. Also, with wipers removed, try operating the motors with this single wire disconnected so as to isolate the park switch.
 
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