Wiper Not Working

[troutstreamnm]

I just did a complete rewire of my 70 Charger using M&H harnesses.  Everything seems to be working, but my 3-spd wiper motor.  Now the connector on the harness for the wiper motor did not match the connector on the motor, so I just made new connections to hook up to the harness side (see pic).  The wire colors were the same, just different male/female connectors.  I'm not sure if my wiper motor, switch or something else is the problem.  How can I short the wiper motor to test it?  Also the harness has two connectors (brn w/ white tracer and solid brn-see pic) that come off the wiper motor harness that are currently orphans. What are these for?  Thanks for the help.

[Nacho-RT74]

thats two speeds harness.

three speeds harnes are part of the motor assembly

[troutstreamnm]

So will this wiring not work with this wiper?  I don't understand why it doesn't power the wiper at any of the switch positions?  Need help    Thanks!

[TylerCharger69]

isnt one of those orphaned connectors supposed to connect the transmission backup lights???

[b5blue]

There is a breaker INSIDE the switch check for continuity at the switch first (Per FSM checks for position of rocker sw.)  this is a 70 correct?

[troutstreamnm]

Yes, it's a 70.  So what are my options?  Thanks for the help!

[b5blue]

Do you have a Factory Service Manual? There is a "trouble shooting" section that's quite thorough. I know 2 speed inside and out, but 3 speed not so much  First just look for volts any where and check grounds.

[troutstreamnm]

Thanks Neal.  I did check for voltage at the connection going to the wiper motor (ie downstream of switch).  There is full voltage (13-14V) on the red wire with the switch on, but I don't see any voltage from any of the other three wires.  I hooked a jump from the (+) battery terminal directly to the motor (red wire) and tried grounding each of the other wires, but that did not do anything.  That might of been the wrong idea, but I thought the switch might close the circuit when in position.    Thats when I came here for more advise.  BTW, the motor/switch worked normally before I started the rewire project, but I did do some clean up work on the motor and used liquid tape on some exposed wiring at the motor.  I'll check the FSM and thanks for any other ideas. 

[troutstreamnm]

FINALLY.... I figured it out    The wiring diagram shows a bn* (brown w/tracer) wire from the switch to the bulkhead.  Which is exactly what the wiring harness has.  On the engine side the wiring diagram shows a plain brown wire from the bulkhead to the wiper motor.  Well the wiring harness connector for the wiper motor is wired w a bn* wire and not a solid brown.  I had an orphan brown connector on the engine side wiper harness that had continunity with the proper bulkhead connection and I hooked that up to the motor and got it to work    Must be something to do with differences between the 2-sp and 3-sp engine side harness?    Anyway, I think I'm good now and thanks for the help....it got me to really study the wiring diagram and figure it out. This is why I'm not an electrical engineer     

[b5blue]

  Gotta love having wipers!