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Glow plug relay wiring diagram

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Old 10-21-2008, 01:51 PM
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Question Glow plug relay wiring diagram

Does anyone know where I can find the wiring diagram for the glow plug relay on an early 99 PSD? I'm not sure if mine is wired correctly..... As always, thanks in advance for the info and support
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Old 10-21-2008, 02:10 PM
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I'll post this link to help but I'm not sure if the early '99's are the same as the rest.

Welcome to guzzle's Stancor GPR replacement Mod Web Page

Look at the picture caption "Remove the Old GPR"
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Old 10-21-2008, 02:34 PM
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Here's my cheat sheet jpg.

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Old 10-21-2008, 02:53 PM
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Quote:
Originally Posted by Ponyboychris View Post
I'll post this link to help but I'm not sure if the early '99's are the same as the rest.

Welcome to guzzle's Stancor GPR replacement Mod Web Page

Look at the picture caption "Remove the Old GPR"
'99's are the same. Only difference is lack of AIH relay.
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Old 10-21-2008, 03:13 PM
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'99's are the same. Only difference is lack of AIH relay.
Good to know, thanks.
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Old 10-21-2008, 06:30 PM
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Thanks for the pic, mine is very similar. With the ignition on, the "#3" wire has positive voltage, which would be contrary to it being a ground through the PCM??????
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Old 10-21-2008, 06:53 PM
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I hope this helps

85 is red
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Old 10-21-2008, 06:55 PM
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Quote:
Originally Posted by IM1096 View Post
Thanks for the pic, mine is very similar. With the ignition on, the "#3" wire has positive voltage, which would be contrary to it being a ground through the PCM??????

3 & 5 could be reversed and the relay will still operate. With key on you will see battery on both with one lead to ground. You will be reading the voltage through the winding. You need to lift the wires off the posts to isolate them and then read their potential with key on.


Edit: Nice diagram Jim. Does what I said make since?
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Old 10-21-2008, 07:00 PM
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Originally Posted by PaysonPSD View Post
3 & 5 could be reversed and the relay will still operate. With key on you will see battery on both with one lead to ground. You will be reading the voltage through the winding. You need to lift the wires off the posts to isolate them and then read their potential with key on.


Edit: Nice diagram Jim. Does what I said make since?
Yes it does Robin, A coil dosen't know the difference between positive and negative. They are sometimes marked just for the sake of keeping things the same.

Thanks!
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Old 10-21-2008, 07:36 PM
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Thanks for the diagram and info, helped me understand it a little clearer,,,,,, As always this forum is a wealth of great info and help!!!!
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Old 08-14-2014, 06:20 PM
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Sorry in advance for the necropost, but on this page, http://api.viglink.com/api/click?for...d%20Web%20Page , On the diagram "Remove the Old GPR", what is the purple wire on the output terminal?
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Old 08-14-2014, 08:40 PM
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Quote:
Originally Posted by subcaptian View Post
Sorry in advance for the necropost, but on this page, ... On the diagram "Remove the Old GPR", what is the purple wire on the output terminal?
That wire goes to pin 8 of the PCM (Glow Plug Monitor). Somewhere along the way there is a fusible link and wire changes color to White/Lt Grn.
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File Type: pdf 1999 Drawing 1.pdf (75.4 KB, 1968 views)
File Type: pdf 1999 Drawing 2.pdf (67.2 KB, 1128 views)
File Type: pdf 1999 Drawing 3.pdf (63.4 KB, 1043 views)
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