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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Wiring Diagram?

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Old Jun 5, 2007 | 08:52 PM
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Wiring Diagram?

Dose anyone happen to have a Instrument Cluster wiring diagram for an 86 F150?
 
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Old Jun 5, 2007 | 09:05 PM
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I have a paper copy...what are you trying to figure out?
 
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Old Jun 5, 2007 | 09:10 PM
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my dashboard lights do not work, ive tested it with a volt meter and hooked the pannel up to the battery directly and it seems to work, but pins #2 and #5 arnt getting any voltage from the main connector inside the cab

does it say where the power is susposed to be comming from on pins #2 and #5?
 
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Old Jun 5, 2007 | 09:11 PM
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is there a fuse anywhere on that circuit?
 
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Old Jun 5, 2007 | 09:31 PM
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Is it your just you illumination lamps not working? Or are the indicator lamps out? Or both? From what I can see, pin A2 is the ground lead to the parking brake switch, and pin A5 is the ground lead to the seat belt switch. Your power for illumination lamps is pin A9, which is a Lt Blue/red wire to fuse 17. Pins A3, A4, and A6 power the directional and high beam lights from various sources.
 
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Old Jun 5, 2007 | 09:42 PM
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it is just the illumination lamps, the upper lights (brake, turn signals, ect.) are still functional.
 
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Old Jun 6, 2007 | 06:22 PM
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All that comes from the headlight switch. There is a blue/red wire that feeds all the dash lighting(radio, heater controls, etc.), and the cluster lights.
 
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Old Jun 6, 2007 | 08:27 PM
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The blue/red wire runs from the headlight switch to the #17 fuse, then from the fuse to power all the different illimunation lights Dave mentioned. Suggest you try that fuse first. If the fuse is good, turn on the headlight switch and test to see if you have power to the circuit. If you have power, the headlight switch is fine and you need to look for a problem further downstream. If you have no power check the headlight switch and it's connections.
 
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Old Jun 6, 2007 | 09:23 PM
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i got it working this morning but then it went out again, and it was a blown fuse.

and now ive replaced it and as soon as i toutched power on the battery boom, fuse blown.

i just dont know where my short is?

where do you think the most likley place is?
 
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Old Jun 6, 2007 | 09:32 PM
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Do you have an aftermarket stereo?
 
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Old Jun 6, 2007 | 09:34 PM
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Has the radio been replaced? There's an illumination wire running to the radio that's often not used with aftermarket units. It may have been left hanging to eventually ground out.
 
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Old Jun 6, 2007 | 09:39 PM
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okay, well now the issue is now the coil on the switch for the brightness of the dashlights is getting hot and smoking meaning theres a short somewhere, im going to check the paper circuit on the dash and see if thats the spot but any other suguestions are welcome

thanks for the help
-george
 
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Old Jun 6, 2007 | 09:43 PM
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yes the raido has been replaced, its a kenwood KDC-135 and im going to check it now

thanks
 
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Old Jun 6, 2007 | 09:50 PM
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alright, well when the raido is unplugged, the lights work fine. when i plug in the raido

boom, my fuse is blown.
and it was working perfect this morning im not sure why its doing this
 
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Old Jun 6, 2007 | 09:54 PM
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What number fuse was blew when you reconnected power?
 
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