SOURCE: 97 Caddy Deville--Headlights won't come on. Fuses OK
check blown body and / or lighter fuses 20A
SOURCE: 97 deville
It is typical for daylights to go off when headlights are turned on. So check each headlight bulb cause it could be as simple as that. If they are OK then the switch has to be checked & power to the bulbs
SOURCE: I pull out the headlight
If the flash to pass light works, problem would most likely be a failing head light switch that intermittently fails to work.
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It could also be a bad grounding circuit for the headlight switch. Check the gounding point for the headlight switch for looseness and contaminations, Remove, clean and reinstall to test. ( Located at upper portion of left kick panel).---------
As per problem its headlight or faulty dimmer switch problem.---------
There is no power at the either headlight fuses. The circuit actually must run in series . If you jump either fuse with a hot wire both headlights should come on. If the light comes on, then headlight switch should be replaced as mentioned, or dimmer switch. Try the headlight switch first , but if that does not then dimmer switch also needs to be replaced.-----------
To confirm, remove the head light switch and connect it terminal/ wires together without connecting switch and see, if all lights starts working,get the head light switch replaced. This will help.Thanks.Helpmech.
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