Forum Discussion

Effy's avatar
Effy
Explorer II
Feb 28, 2017

wipers stopped working - again

About a year ago I had an intermittent wiper issue. Thought it was a bit odd as our unit is fairly new. I never did figure the issue out but it stopped happening and worked fine for the remainder of the year. First trip this year and they won't work at all. A 4 hour trip and tried several times and they simply don't respond to the switch. The washer pump works though. I checked the wiring and everything seems to be connected fine, connection in the box is fine, ground looks solid etc. I have not tried a voltage meter - not sure exactly how I would test that. Short of taking it to the shop I am not sure what else to try. Thoughts?
Class A
  • dougrainer's avatar
    dougrainer
    Nomad
    Feb 28, 2017
    If Ford, the control module is at the firewall next to the Gas/Brake pedal. The Motor and the Wiper arms/linkage are THOR. The switch and control module is Ford. Doug
  • Effy's avatar
    Effy
    Explorer II
    Feb 28, 2017
    traveylin wrote:
    Ford has a service bulletin on how to troubleshoot. I was ready to get out the meter and really get involved. Turned out a 6 pin disconnect was loose near the motor. Cleaned up and secured with a tie wrap. I also lube the mech joints of the wipers once a year due to infrequent use


    thanks, makes sense why it was intermittent before. I will disconnect everything and clean and snug it up and see if that helps.
  • traveylin's avatar
    traveylin
    Explorer
    Feb 28, 2017
    Ford has a service bulletin on how to troubleshoot. I was ready to get out the meter and really get involved. Turned out a 6 pin disconnect was loose near the motor. Cleaned up and secured with a tie wrap. I also lube the mech joints of the wipers once a year due to infrequent use
  • Effy's avatar
    Effy
    Explorer II
    Feb 28, 2017
    crasster wrote:
    Put the meter on 20V DC. Go to the motor and unplug the positive wire. Then put the meter on the positive wire (the red wire from the meter) and put the negative wire either to ground (any frame metal on your unit) OR on the negative wire going to the motor. Be sure to have somebody turn on the wipers. You should see power of around 12-14Volts.


    the motor has a wiring harness going into it which is why I was having issues diagnosing before. There does not appear to be one hot and ground, there are a few wires.
  • crasster's avatar
    crasster
    Explorer II
    Feb 28, 2017
    Put the meter on 20V DC. Go to the motor and unplug the positive wire. Then put the meter on the positive wire (the red wire from the meter) and put the negative wire either to ground (any frame metal on your unit) OR on the negative wire going to the motor. Be sure to have somebody turn on the wipers. You should see power of around 12-14Volts.

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