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3

I suspect the contacts in the light switch are shorted. In a correctly working switch, In the off position you wouldn't have power on white/light blue or red/yellow. In the park lamp position it would only have power on the white/light blue wire. In the Head lamp position it sends power to the red/and white/light blue wire. If none of these are true ...


3

Almost certainly a poor connection within the bulb holder. You might be able to clean up the connections within the holder with a fine bit of sandpaper or "wet and dry", then adjust them with a tiny screwdriver to improve the contact, but it's probably easier to get a new unit...


3

The short answer is: no - not without the manufacturer's diagnostic tools. The long answer is: maybe. Modern cars have most (if not all) exterior and interior lights controlled by the body control module (BCM). Most (if not all) switches are connected to the BCM as well. This provides a lot of flexibility. A prime example is if you leave your headlights ...


1

The picture in your comment suggests the following course of action: The bolted type of battery terminal shown can cause this symptom and still look OK. Test it with a voltmeter. Put one probe on the lead of the battery and the other on the copper of the cable and then read the meter while trying to crank the engine. Do this for both connections. If the ...


4

This problem is usually indicative of a bad connection at the battery (or one of the battery cables). It almost behaves like a resettable fuse. When there is a connection, the lights work because the connection is good enough to allow the little amount of power needed to power these devices. Then, when you try to start, the connection breaks because there is ...


2

The backup lights stay on and I have to remove the fuse to turn them off. If the headlamps stay on as well, the daytime running lamp circuit is back feeding into the backup lamp circuit. But since nothing about the headlamps is mentioned, that can be ruled out. Step 1 A simple way to test would be to unplug the range switch with the key off. Do ...



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