how to test wiper motor


Asked by Nov 13, 2013 at 01:04 PM about the 2000 Ford Windstar

Question type: General

replaced motor checked fuses still nothing

4 Answers

you might have a dud...with your multi-meter check for OHMS at the wiper motor'll have to unplug the connector...and the thing will probably have four wires, but there should be continuity between at least two of the lugs~

1 out of 1 people think this is helpful.

if you've access or want to buy a "Power Probe" you could juice the goose to see if it's movin'~

...else would have to blame the wiper switch~ bm=shop

Bill Vegh

If you want to check to see if the wiper motor is bad, you have to remove the plug connected to it and see if there is power to any of the terminals of the plug. To check you will need a multi-meter. Set for greater than 12v. Turn the key to the on position and turn the wipers ON. Take the positive (red) lead and touch each of the plug terminals while holding the negative (black) lead to a nearby ground (usually on the firewall). If power is noted on 1 or 2 terminals (out of 4) your motor is probably bad. If no power is noted, the culprit is probably 1 or both the relays located in the power box under the hood OR the fuse in the passenger compartment (usually on the drivers side but can be on the passenger side on the side of the dash). If you have AC, that relay can be switched with the wiper relay to check relays. (They usually are the same)

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