manual GP switch questions.
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Posting Guru
Joined: Oct 2005
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From: Wisconsin
manual GP switch questions.
well fellas, im getting my lisence back in time for Wisconsin's winter.
going to IH tom to get my new SD fuel heater and was also thinking of putting in a manual GP switch.
and i have a few questions about it.
1. do you have to use a push button switch?
2. the switch i was thinking of using has 3 nipples on it. one for power/one for a ground/ and the other for your accessory.
do i have to run 12V from the battery to the switch? if so what gauge wire should i run?
3. if i let some one else drive my truck and they forgot to turn it off what would happen?
4.should i run a inline fues going from the switch to the GPR?
and 5. so basicly all i would do is run 12v to my switch and ground it. run another wire to the switch to where the purple wire is on the GPR and im set?
thanks for all and any help
Mitch
going to IH tom to get my new SD fuel heater and was also thinking of putting in a manual GP switch.
and i have a few questions about it.
1. do you have to use a push button switch?
2. the switch i was thinking of using has 3 nipples on it. one for power/one for a ground/ and the other for your accessory.
do i have to run 12V from the battery to the switch? if so what gauge wire should i run?
3. if i let some one else drive my truck and they forgot to turn it off what would happen?
4.should i run a inline fues going from the switch to the GPR?
and 5. so basicly all i would do is run 12v to my switch and ground it. run another wire to the switch to where the purple wire is on the GPR and im set?
thanks for all and any help
Mitch
Playing in the Dirt
Joined: Oct 2005
Posts: 2,302
Likes: 1
From: Southwest Georgia
1. No
2. See below
3. See below
4. See below
The way that the GPR works is, there is constant power to the GPR and the PCM provides a ground to complete the circuit when the GPR needs to be turned on. So basically there are two wiring options,
The First: Check the two small wires on the GPR and the one "WITHOUT" power needs to be run through a switch to a ground. Now when the switch is turned on the GPR is energized and power will go to the plow plugs until you turn the switch off or your glow plugs and GPR burn out because you left the switch on. No fuse is needed. (A push button switch is best for this option because you cannot leave it on).
The Second: Check the two small wires on the GPR and the one "WITH" power needs to be cut, and a power source needs to run through a fuse (15 amp) then your switch and to the GPR. This way if the switch is left on the PCM will still disable the circuit by cutting the ground.
Hope this helps.
2. See below
3. See below
4. See below
The way that the GPR works is, there is constant power to the GPR and the PCM provides a ground to complete the circuit when the GPR needs to be turned on. So basically there are two wiring options,
The First: Check the two small wires on the GPR and the one "WITHOUT" power needs to be run through a switch to a ground. Now when the switch is turned on the GPR is energized and power will go to the plow plugs until you turn the switch off or your glow plugs and GPR burn out because you left the switch on. No fuse is needed. (A push button switch is best for this option because you cannot leave it on).
The Second: Check the two small wires on the GPR and the one "WITH" power needs to be cut, and a power source needs to run through a fuse (15 amp) then your switch and to the GPR. This way if the switch is left on the PCM will still disable the circuit by cutting the ground.
Hope this helps.
Fleet Mechanic
Joined: Mar 2007
Posts: 1,313
Likes: 6
From: Rio Rancho NM
I went with option 2 just in case I forget to flip the switch off after starting. I used a simple rocker switch:
http://www.supermotors.net/vehicles/registry/media/559026
It has a connection to illuminate a light in the switch but I didn't hook that up. I put the switch there as it is easy to reach and if I ever decide to move it or do something different w/ the GP circuit I could remove it and the mounting holes in the trim piece would not be seen. The trim piece is easily removed.
http://www.supermotors.net/vehicles/registry/media/559026
It has a connection to illuminate a light in the switch but I didn't hook that up. I put the switch there as it is easy to reach and if I ever decide to move it or do something different w/ the GP circuit I could remove it and the mounting holes in the trim piece would not be seen. The trim piece is easily removed.
Thread Starter
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Posting Guru
Joined: Oct 2005
Posts: 1,305
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From: Wisconsin
Originally Posted by plowhand
1. No
2. See below
3. See below
4. See below
The way that the GPR works is, there is constant power to the GPR and the PCM provides a ground to complete the circuit when the GPR needs to be turned on. So basically there are two wiring options,
The First: Check the two small wires on the GPR and the one "WITHOUT" power needs to be run through a switch to a ground. Now when the switch is turned on the GPR is energized and power will go to the plow plugs until you turn the switch off or your glow plugs and GPR burn out because you left the switch on. No fuse is needed. (A push button switch is best for this option because you cannot leave it on).
The Second: Check the two small wires on the GPR and the one "WITH" power needs to be cut, and a power source needs to run through a fuse (15 amp) then your switch and to the GPR. This way if the switch is left on the PCM will still disable the circuit by cutting the ground.
Hope this helps.
2. See below
3. See below
4. See below
The way that the GPR works is, there is constant power to the GPR and the PCM provides a ground to complete the circuit when the GPR needs to be turned on. So basically there are two wiring options,
The First: Check the two small wires on the GPR and the one "WITHOUT" power needs to be run through a switch to a ground. Now when the switch is turned on the GPR is energized and power will go to the plow plugs until you turn the switch off or your glow plugs and GPR burn out because you left the switch on. No fuse is needed. (A push button switch is best for this option because you cannot leave it on).
The Second: Check the two small wires on the GPR and the one "WITH" power needs to be cut, and a power source needs to run through a fuse (15 amp) then your switch and to the GPR. This way if the switch is left on the PCM will still disable the circuit by cutting the ground.
Hope this helps.
and the one without power to it would be the purple wire? right?
so i just find the wire on the GPR without power? run a wire from that to my switch? and then ground out the switch?
thanks
Mitch
