Hey folks am finishing a high end FJ40 resto.... Hit the wall on wiring a Ron Francis WS-61 wiper switch to existing windshild top mounted wiper motor. Had the motor rebuilt.... Have the wire plug terminals correct according to motor rebuilder (park, low, high 12v power) ANYBODY EVER HOOK UP A WS-61 switch???? this is it n this baby is off to the races..... Help!!!!!
71' FJ40 Need Advice on Aftermarket Wiper Motor Switch Installation
- Thread starter Ludlow T
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BTW you good folks have been BOMB.... learned a lot from Ya'll
I am pretty sure the wiper motor needs to be grounded through the windshield frame. perhaps you have fresh paint affecting the ground path. To test you can run a temporary ground to the battery - terminal.
Coolerman figured out the wiper motor LW wire needed to be connected to the harness LB wire. Also the wiper motor LB wire connects to harness LW. I don't think this fact is in the schematics. So if you hit a dead end, maybe try to switching those wires
Another tidbit: the Teq wiper switch needed to have a dash ground. Does the Ron Francis switch ground when mounted or have a dedicated ground wire?
Link to Coolermans wiper science
Coolerman figured out the wiper motor LW wire needed to be connected to the harness LB wire. Also the wiper motor LB wire connects to harness LW. I don't think this fact is in the schematics. So if you hit a dead end, maybe try to switching those wires
Another tidbit: the Teq wiper switch needed to have a dash ground. Does the Ron Francis switch ground when mounted or have a dedicated ground wire?
Link to Coolermans wiper science
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- #5
Yes the motor was rebuilt and bench tested by rebuilder (D&M restorations $200... seemed fair after seeing online motor prices....
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- #6
Thanks BRR.... I did make a ground wire from motor housing to windshield frame but will try a jumper jus to be sure... the LW wire and LB wire is a good lead will work on that.... Will ask RF about the switch being internally grounded.... Thx ALLI am pretty sure the wiper motor needs to be grounded through the windshield frame. perhaps you have fresh paint affecting the ground path. To test you can run a temporary ground to the battery - terminal.
Coolerman figured out the wiper motor LW wire needed to be connected to the harness LB wire. Also the wiper motor LB wire connects to harness LW. I don't think this fact is in the schematics. So if you hit a dead end, maybe try to switching those wires
Another tidbit: the Teq wiper switch needed to have a dash ground. Does the Ron Francis switch ground when mounted or have a dedicated ground wire?
Link to Coolermans wiper science
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Nice clean engine compartment! Since I would have no idea what the Ron Francis harness provides, you will need to post some schematics showing how it is currently connected. The most important thing to know: you provide the wiper motor with +12V on the BLUE wire, then the wiper switch will connect either the Blue/Black or the Blue/Red wire to GROUND for lo/hi speeds The Blue/White wire is part of the PARK circuit.
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- #11
Gonna bail on the Ron Francis stuff very disappointed with their tech.... got a real Toyota switch
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- #12
K... Folks have the new switch n the wiper science is a huge help.... my questions now are according to the post no 12v to the switch jus the motor.... so how does the switch power up low n high sides? or does the switch act as a grounding device completing the ground when turned to low or high side?? It shows WB ground wires from the harness and talks about jumpers between low and high sides.... The existing harness is aftermarket Kwik wire it had a single switched and fused wire from fuse block.... I assume that runs to the motor not the switch as RFrancis told me... so question do I create a ground jumper to Low and high sides as well as the WB terminal on the switch or does that jump occur in the Toyota switch? I know I sound like a dumb ass but wiring was never my strength..... always followed the diagram exactly..... but no diagram here.... sorry to say but a paint by numbers guy here.... Coolerman u there? HELP!!!!!
firefighterjed
SILVER Star
ludlow, two posts above yours mentions that the switch serves to complete circuits by grounding power that is already at the motor. You’re on the right track!
don't forget you need a ground strap from battery - to frame and a strap from frame to the tub.
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I hope this Road Map i laid out for u helps .........
just use my OEM color code tracer stripe wire / Connetcor Terminals Bay locations as a concrete rerefrence point and u will be Good .................
Good Luck !
just use my OEM color code tracer stripe wire / Connetcor Terminals Bay locations as a concrete rerefrence point and u will be Good .................
Good Luck !
Basic operation of the FJ40 wipers. (Figure 1) In off, +12V is applied to the low speed brush and the common brush. The common brush stays at +12V and the speed switching is done on the hi and low speed brushes. In low, the low speed brush is grounded, in high the high speed brush is grounded. When switching off the wipers, the park switch provides ground to the low speed brush until it gets to the park location where it goes to +12V and brakes the motor.
This is stock wiper wiring for a 73, I assume 71 is the same, Ignore the stuff in the box in lower right corner, I wrote this up when I converted the Ford intermittent wiper module. I have seen a more professional version of this someplace, maybe someone on this forum.
This is stock wiper wiring for a 73, I assume 71 is the same, Ignore the stuff in the box in lower right corner, I wrote this up when I converted the Ford intermittent wiper module. I have seen a more professional version of this someplace, maybe someone on this forum.
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- #18
thanks folks gonna chase down these leads n see where it gets us.... if I didnt say b4 is NOT a stock harness but a quick wire 9 circuit harnes
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You are on the right track! You MUST recreate the OEM wiper wiring if you plan to use an OEM wiper switch and an OEM wiper motor.
You need a 6 pin FEMALE connector on the wiper switch side and a 4 pin FEMALE connector on the wiper motor side.
You need a 4 wire harness to go between the OEM wiper switch and the wiper motor. You will need Blue, Blue/Black, Blue/Red and Blue/White 16ga wires.
Connect as shown on the drawing below and you will be fine. Note the crossed LW and LB wires are NOT wrong!
I sell the wire and connectors with terminals if you need them. Just need to know how long you need the wires.
You need a 6 pin FEMALE connector on the wiper switch side and a 4 pin FEMALE connector on the wiper motor side.
You need a 4 wire harness to go between the OEM wiper switch and the wiper motor. You will need Blue, Blue/Black, Blue/Red and Blue/White 16ga wires.
Connect as shown on the drawing below and you will be fine. Note the crossed LW and LB wires are NOT wrong!
I sell the wire and connectors with terminals if you need them. Just need to know how long you need the wires.
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STILL HAVING A TON OF PROBLEMS... I have the switch installed and the wires LR... LB... LW as shown in the above diagrams. I made a ground wire that will be the WB wire on the switch connected to the common ground for the dash wiring grounding the switch. So I believe that is what is needed for the switch. The Kwik Wire harness has a dedicated ignition switch fused 12V wire that I ran to the L position on the Motor Plug lower right terminal shown on factory diagram as position B.... Also the motor IS correctly grounded to windshield.
My questions are do the LB and LW wires switch positions like in the diagram on the motor plug? Also it shows that LB and LW connect to one another on the above diagrams does that occur IN the switch or is a jumper required? Again this is an aftermarket Kwick Wire harness very basic.
My questions are do the LB and LW wires switch positions like in the diagram on the motor plug? Also it shows that LB and LW connect to one another on the above diagrams does that occur IN the switch or is a jumper required? Again this is an aftermarket Kwick Wire harness very basic.