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Old 11-19-2010, 02:00 PM   #1
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Smile 1978 safari international interior wiring

My service manual hasnt arrived yet so in the mean time I'm trying to figure out how it is that a 12v light fixture can show 13v but the light still doesnt work. All the lights work except the reading light by the bed and the bathroom lights. This thing blows up light bulbs like popcorn. does anyone know the wiring configuration. Thank you
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Old 11-19-2010, 02:20 PM   #2
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I hope someone has the answer, I have the same problem with the light over the door on my 1979 Safari.

Bill

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My service manual hasnt arrived yet so in the mean time I'm trying to figure out how it is that a 12v light fixture can show 13v but the light still doesnt work. All the lights work except the reading light by the bed and the bathroom lights. This thing blows up light bulbs like popcorn. does anyone know the wiring configuration. Thank you
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Old 11-19-2010, 03:15 PM   #3
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I hope someone has the answer, I have the same problem with the light over the door on my 1979 Safari.

Bill
There can be 2 different answers, depending on if the light socket has 1 or 2 wires going to it.

Andy
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Old 11-19-2010, 04:32 PM   #4
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the ceiling light and reading light have two wires. The light over the sink has three. Right now the only one showing any voltage is the light at the sink. It might be a flaky switch. Anyway your advice would be very valuable. thanks
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Old 11-19-2010, 04:39 PM   #5
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Andy,

I don't remember how many wires. What are the two answers?

Bill

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There can be 2 different answers, depending on if the light socket has 1 or 2 wires going to it.

Andy
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Old 11-19-2010, 04:45 PM   #6
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the ceiling light and reading light have two wires. The light over the sink has three. Right now the only one showing any voltage is the light at the sink. It might be a flaky switch. Anyway your advice would be very valuable. thanks
The light over the sink is controlled by 2 each 3 way switches. One is on the light and the other is by the entrance door.

Andy
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Old 11-19-2010, 04:49 PM   #7
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Andy,

I don't remember how many wires. What are the two answers?

Bill
Either 12 volts is fed to the lamp thru a switch, or 12 volts is always on the lamp, but the return circuit goes thru a switch to ground (two terminals).

The 1978 service manuals do not have a model specific wiring diagram. The only diagram is general in nature.

Andy
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Old 11-19-2010, 05:07 PM   #8
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I just went out side and the light sink light magically came on? the other two are dead. no volts no nothin.
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Old 11-19-2010, 05:13 PM   #9
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snkrichards both lights are on different circuits and the galley light is on a third circuit. If all fuses are good and all other lights work. Then either you have a broken wire to each light or as you say the sockets have two wires then you have no ground. If you keep poping bulbs I would suspect the sockets. Are you sure you have the right bulbs in them. The bulbs should be #1141 and only have one contact point at the bottom of the bulb.
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Old 11-19-2010, 05:16 PM   #10
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thanks I'll check this out before I ask any more questions.
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Old 11-19-2010, 06:35 PM   #11
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I have discovered several fuses with hots to the top and nothing coming out the bottom. seems odd. It looks like some of the other circuits have been wired into the main 50 amp hot. wiring mysteries are so much fun.
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Old 11-19-2010, 06:41 PM   #12
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Snkrichards well if the fuses are "hot" on top and nothing on the bottom it's obvious that the fuses are blown. You should correct the other circuits that are wired into the 50 AMP hot because if you get a short to ground on those circuits the wires are too small to carry that much amperage and will melt and start a fire! You also have the potential of pulling that much amperage through an improper load(light, fan etc) and have the same result(FIRE).
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Old 11-19-2010, 06:58 PM   #13
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I meant there was a hot wire to the top of three fuses; the fuses are good but no wire coming off the bottom of those three fuses.
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Old 11-20-2010, 04:01 PM   #14
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Well I've isolated the circuits. The only thing not working now are the light on the bathroom ceiling and the reading lamp. If I can figure out where they originate I'll be set. Thanks
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