I am ripping my hair out trying to wire the wiper motor in my Jeep build. I don't understand why this is so hard for me to understand. I don't usually have a hard time with DC wiring at all.
I am using a fairly generic 12v 4 pin wiper motor.
Wiper motor wire colors and functions are as fallows.
BLACK=Ground (grounded to motor body)
RED=12v ignition
GREEN=Low Speed from switch
YELLOW=High Speed from switch
WHITE=Park function
The wiper switch I am using is a generic 4 pin wiper switch. Terminals are as fallows.
B terminal=12v ignition
P terminal=Park function
L terminal= Low speed
H terminal= High Speed
I can get both motor speeds to work easily, but I don't understand how to get the park function to work. I can not find a clear answer on the net on how to wire it. Some say the P function needs a ground signal, and others say it needs a 12v signal. I looked at a few wiring diagrams, and watched videos, and everyone is wiring these things completely differently even though they are all using 4 pin motors and switches.
From testing I know that the P (Park) terminal on the switch is hot when the switch is OFF and cold when the switch is turned to the LOW or HIGH speed positions. This makes sense because park needs a 12v signal when the switch is off, so that the motor returns to the park position.
Bench testing the motor and switch together, I have a fused 12v from a battery to the B terminal (12+ terminal), Green wire to the L terminal (Low speed), Yellow wire to the H terminal (High speed), and the WHITE and RED wire unconnected for now.
Now here is whats confusing me. And I have tried this with two different 4 pin motors with the same results.
When I have the switch hooked up to the motor as I stated above and the LOW and HIGH speeds are working correctly, and I then hook the WHITE wire to the P terminal while the switch is OFF, the RED wire suddenly gets 12v. I turn the switch to L or H and obviously both the WHITE and RED wire loose 12v.
This works in reverse as well. If I give the RED wire 12v, then the WHITE wire also gets 12v.
The instructions and wiring diagrams I have seen all say to hook the RED wire to a switched 12v, and the WHITE wire to the P terminal on the switch. Isn't that going to cause issues if the RED wire is getting 12V, and then the switch is turned off, and the WHITE wire also gets 12v? I have tried wiring one of my motors like this way with no fuse, and I am worried it killed the P function in the motor but can not confirm. It did not result in the P function working. I than added a fuse from the battery, and tried the same wiring again, and it blew the fuse.
How is this suppose to work? I am lost as to how to hook up the WHITE and RED wires.
If the switch sends a 12v signal to the WHITE wire when OFF, why does it also send 12V to the RED wire that's suppose to be hooked to a 12v source? And when I have the RED wire hooked to a 12v source, why is it energizing the WHITE wire?
I am using a fairly generic 12v 4 pin wiper motor.
Wiper motor wire colors and functions are as fallows.
BLACK=Ground (grounded to motor body)
RED=12v ignition
GREEN=Low Speed from switch
YELLOW=High Speed from switch
WHITE=Park function
The wiper switch I am using is a generic 4 pin wiper switch. Terminals are as fallows.
B terminal=12v ignition
P terminal=Park function
L terminal= Low speed
H terminal= High Speed
I can get both motor speeds to work easily, but I don't understand how to get the park function to work. I can not find a clear answer on the net on how to wire it. Some say the P function needs a ground signal, and others say it needs a 12v signal. I looked at a few wiring diagrams, and watched videos, and everyone is wiring these things completely differently even though they are all using 4 pin motors and switches.
From testing I know that the P (Park) terminal on the switch is hot when the switch is OFF and cold when the switch is turned to the LOW or HIGH speed positions. This makes sense because park needs a 12v signal when the switch is off, so that the motor returns to the park position.
Bench testing the motor and switch together, I have a fused 12v from a battery to the B terminal (12+ terminal), Green wire to the L terminal (Low speed), Yellow wire to the H terminal (High speed), and the WHITE and RED wire unconnected for now.
Now here is whats confusing me. And I have tried this with two different 4 pin motors with the same results.
When I have the switch hooked up to the motor as I stated above and the LOW and HIGH speeds are working correctly, and I then hook the WHITE wire to the P terminal while the switch is OFF, the RED wire suddenly gets 12v. I turn the switch to L or H and obviously both the WHITE and RED wire loose 12v.
This works in reverse as well. If I give the RED wire 12v, then the WHITE wire also gets 12v.
The instructions and wiring diagrams I have seen all say to hook the RED wire to a switched 12v, and the WHITE wire to the P terminal on the switch. Isn't that going to cause issues if the RED wire is getting 12V, and then the switch is turned off, and the WHITE wire also gets 12v? I have tried wiring one of my motors like this way with no fuse, and I am worried it killed the P function in the motor but can not confirm. It did not result in the P function working. I than added a fuse from the battery, and tried the same wiring again, and it blew the fuse.
How is this suppose to work? I am lost as to how to hook up the WHITE and RED wires.
If the switch sends a 12v signal to the WHITE wire when OFF, why does it also send 12V to the RED wire that's suppose to be hooked to a 12v source? And when I have the RED wire hooked to a 12v source, why is it energizing the WHITE wire?