8WA Sman Posted November 22, 2019 Share Posted November 22, 2019 The OE wiper motor on my '94 F-150 has failed and after much digging I secured a WM-548. My OE motor has two 3 pin connectors, the replacement motor has one 5 pin connector. At one time these motor had instructions but mine does not. After more digging I came across a site that basically says to merge the ground with motor common. Does anyone remember or can confirm this? I do not want to damage the wiper module as I am guessing it is probably more OBS then the motor 1 Quote Link to comment Share on other sites More sharing options...
lmorris Posted November 22, 2019 Share Posted November 22, 2019 Looking over the wiring diagram, that does make sense. I do recall doing a few of these years ago. All the other wires in that harness are going to be powered anyways. If you look at newer vehicles the ground and motor common are merged in the wiper motor already. Quote Link to comment Share on other sites More sharing options...
8WA Sman Posted November 23, 2019 Author Share Posted November 23, 2019 Thanks Leon, That is also how I interpreted the diagrams. I also checked today and I those 2 circuits ohm out together. I hope to work on/finish it tomorrow. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted November 23, 2019 Share Posted November 23, 2019 You would use the C151 and C152 to C125 conversion part of the schematic. Quote Link to comment Share on other sites More sharing options...
Popular Post 8WA Sman Posted November 24, 2019 Author Popular Post Share Posted November 24, 2019 It's all done Thanks Keith and Leon 3 Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted November 24, 2019 Share Posted November 24, 2019 Neat and professional too! Quote Link to comment Share on other sites More sharing options...
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