License plate and dash lights on with key on, but lheadlight switch in the off position |
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License plate and dash lights on with key on, but lheadlight switch in the off position |
HalfMoon |
Jun 23 2014, 07:50 PM
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#1
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
I started my car tonight and noticed despite the headlight switch being fully in the off position, my dash lights are on and my license plate light is .
Odd. Never saw that before. Headlight switch I imagine.... Thoughts? David Addedum-and saw what I thought was a wisp of smoke come from under my dash at the windshield....perhaps my imagination? |
Tom |
Jun 30 2014, 06:31 AM
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#2
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Advanced Member Group: Members Posts: 2,139 Joined: 21-August 05 From: Port Orchard, WA 98367 Member No.: 4,626 Region Association: None |
You need to find out why fuse #8 is blowing, According to the prints from Pelican, fuse #8 feeds the following: Fresh air blower and switch that controls the speeds, cigarette lighter, and wiper motor. With the power disconnected, use a multimeter to measure the ohmic value between ground and the load side of fuse #8. It should be very low, ( like 0 ohms - grounded), that is why the fuse is blowing. Now you need to see which wire is giving the low reading. If there are multiple spade terminals, remove them one at a time to find which one is grounded. One of them is bad, it is just a matter of finding the bad one and then fixing what is wrong.
Tom EDIT: Quick check - pull the cig lighter out and see if there is corrosion inside. With lighter out does the reading on the load side of fuse #8 get higher in ohms? Tom |
HalfMoon |
Jun 30 2014, 08:08 PM
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#3
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
You need to find out why fuse #8 is blowing, According to the prints from Pelican, fuse #8 feeds the following: Fresh air blower and switch that controls the speeds, cigarette lighter, and wiper motor. With the power disconnected, use a multimeter to measure the ohmic value between ground and the load side of fuse #8. It should be very low, ( like 0 ohms - grounded), that is why the fuse is blowing. Now you need to see which wire is giving the low reading. If there are multiple spade terminals, remove them one at a time to find which one is grounded. One of them is bad, it is just a matter of finding the bad one and then fixing what is wrong. Tom EDIT: Quick check - pull the cig lighter out and see if there is corrosion inside. With lighter out does the reading on the load side of fuse #8 get higher in ohms? Tom Preliminary testing had the powered side of fuse slot eight at 1 ohm and the unpowered side at 0 ohm's. It didn't make a difference if the lighter was in or out. Is that enough resistence to cause fault? |
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