1966 FJ40 Wiper Motor Needs Help

[Coolerman]

mark ,
Is the FSM diagram I posted out of the black and yellow early chassis body incorrect ?

No, not at all. It simply does not show the SWITCH connections.

FYI the S (In Toyota jargon) stands for switched connection, or connection to a switch.

 

[Krondor]

Bump on an old thread. If I am bench testing one of these old motors, Do I need power to both the S and the + for the motor to turn? Or just the +? Then ground the - ?

 

[middlecalf]

S and - ground, it should run continuously. + and - ground, it should run till it reaches the park position then stop. If it doesn’t, then internal park switch needs adjustment (basically two copper leads that separate by the wiper arm cam).

 

[sfab]

I'm still grappling with this one. I get the motor side of the equation, but not the switch. I have a 66 and can't get a switch for it, so I thought I'd try a switch from a 68-72, which is available. I don't know when the two motor scenario changed to one with the arm, but it looks like right about 68. I have yet to get a positive ID on a picture of a switch from a 66. If the ones I THINK are from a 66 the switch looks to have the same terminals as the 68 switch but are soldered on the switch and terminate to a plug vs having spade connectors on the top of the switch. The switch for the 68, I'm pretty sure is for a two speed scenario. I haven't been able to confirm that on the 66.

The 68 switch has terminals labeled +1, +2, S, and (-) neg. Coolerman's drawing suggests three usable terminals on the switch.

Pic in my manual has S (LB- blue/white) at the top, negative (W/B- white/black) in the middle and + (LB-Blue/black) on the bottom. Coolerman has P listed in the center terminal that Toyota calls Neg (-). P for Park I'm guessing. His wire colors are consistent with Toyota, though the switch in his drawing has no connection for the LB (blue/black) wire that hits the + terminal. Coleman, if you're out there, how is your switch drawing labeled for +,-, S?

I DO know that, through using a power probe, the blue/white wires control power to run the motors. That must make the blue/black wire the other + that controls the Park function (deduced by others). I get the white/black body ground, though it may split off to also ground the switch. Does the S on the switch get just the 12V feed wire, or does it also get either the LW (blue/white) ) or LB (blue/black) wires? A continuity test gets a constant continuity between the S and +1 terminals on my 68 switch, regardless of how the with is operated- On/Off. The PO of my truck had the wiper motors connected to separate toggle switches, so I don't have a reference point. This is the pic for the 68 switch. W is to the washer motor, so we'll disregard this for the moment.

Any help is appreciate. Just finished a re-wire and this is the last gremlin to solve for.

Thanks.

 

[65swb45]

I'm still grappling with this one. I get the motor side of the equation, but not the switch. I have a 66 and can't get a switch for it, so I thought I'd try a switch from a 68-72, which is available. I don't know when the two motor scenario changed to one with the arm, but it looks like right about 68. I have yet to get a positive ID on a picture of a switch from a 66. If the ones I THINK are from a 66 the switch looks to have the same terminals as the 68 switch but are soldered on the switch and terminate to a plug vs having spade connectors on the top of the switch. The switch for the 68, I'm pretty sure is for a two speed scenario. I haven't been able to confirm that on the 66.

The 68 switch has terminals labeled +1, +2, S, and (-) neg. Coolerman's drawing suggests three usable terminals on the switch.

Pic in my manual has S (LB- blue/white) at the top, negative (W/B- white/black) in the middle and + (LB-Blue/black) on the bottom. Coolerman has P listed in the center terminal that Toyota calls Neg (-). P for Park I'm guessing. His wire colors are consistent with Toyota, though the switch in his drawing has no connection for the LB (blue/black) wire that hits the + terminal. Coleman, if you're out there, how is your switch drawing labeled for +,-, S?

I DO know that, through using a power probe, the blue/white wires control power to run the motors. That must make the blue/black wire the other + that controls the Park function (deduced by others). I get the white/black body ground, though it may split off to also ground the switch. Does the S on the switch get just the 12V feed wire, or does it also get either the LW (blue/white) ) or LB (blue/black) wires? A continuity test gets a constant continuity between the S and +1 terminals on my 68 switch, regardless of how the with is operated- On/Off. The PO of my truck had the wiper motors connected to separate toggle switches, so I don't have a reference point. This is the pic for the 68 switch. W is to the washer motor, so we'll disregard this for the moment.

Any help is appreciate. Just finished a re-wire and this is the last gremlin to solve for.

Thanks.

View attachment 2672229

View attachment 2672227

66 uses a rotary switch. I have several available for those interested in purchasing routine items along with unobtanium.

www.marksoffroad.net

 

[Coolerman]

For anyone interested in using ground switched aftermarket wiper motors with the early switch.
Here is how to wire those up: Note This is drawing is NOT for wiring up OEM wiper motors!!!