Because the juju has yet to be established in the new wiring. As soon as the juju takes hold, the light brightens.
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Recheck your wiring of the switch. It sounds like you may have wired two lights in series that may have been supplied from the one switch. Two lights from one switch have to be wired in parallel with each other.
Use the discussion page if you need help with this problem
Did you check the fuse?
probably you have wired it wrong so look at the wiring diagram that is supplied with the dimmer switch and make sure your wiring matches................or..............................you have a energy saving bulb connected whih do not like to dim they will flicker
Some lights won't dim. If you've installed the switch properly, and are using traditional incandescent bulbs (not flourescent, LED, E-L lights or any other very low current light), the dimmer will dim the bulbs. Make sure you're using a dimmable bulb and that the dimmer is installed properly.
You probably don't need to change the dash lights. On the headlight panel there is a control to dim or brighten the dash lights. This same control allows you to turn them completely off. I don't remeber on that particular car if the light switch rotates or has a separate switch but all cars have this feature.
Try replacing your headlight switch, it includes an internal circuit breaker that has possibly gone bad and will not reset any more. On my 89 there is ground wire on body in front of battery. Bad ground connection will keep headlights from working. Could be hi/lo dimmer switch on steering column under dash. Difficult to change without removing steering column. I unplugged switch, plugged in new switch, set new switch on dim, and wired it to column. Since old switch still connected to actuator rod going to turn signal/dimmer handle I only have dim lights but can drive at night.
There should be a roll switch right next to your light switch on your dash to dim the lights with.
If the dim lights are continuously staying on there may be an issue with the dimmer switch. The actual switch may be jammed in the on position. Check the switch with a voltmeter and see if there is continuous power coming from it.
bad fuse or relay switch
First guess would be a bad switch.
have your battery and alternator checked but first check to see if switch for your dash lights are just turned to dim
Its the dimmer switch bad.
On my 89 there is a ground wire on the body in front of battery. Bad connection will cause problem with headlights. Could be hi/lo dimmer switch under dash. Hard to replace without removing steering column but I unplugged switch, plugged in new switch, set new switch on dim lights, and wired new switch to steering column so I have lights but only dim lights
If by "dim headlights" you mean low-beams... the bulbs are bad and must be replaced.
If it is a specified Dimmer light wich is made to dim is done by switch. But Normal lights dim because power else where is being used and the light dims to give the other aplliance the power.. Its nothing to worry about.. or your house is Haunted...
I would check all the wiring first. Then, you should probably figure out if any lights need to be replaced. That's my guess.
Short in the window switch . Check for bare wires before ther is a fire...
Switch on brake pedal needs tightened replaced, or switch for lights needs tightened or replaced.