Lights at night


#1

lights work fine during daylight conditions but when headlights are turned on manually or areturned on by low light sensors some turn signals and brake lights do not work properly


#2

This initially sounds like a bad grounding problem involving the headlights, however there is not enough information for further diagnosis. For now, make a thorough check of all exterior lighting with headlights off to verify no bulbs are burned out and that all signals cycle normally.


#3

Also, check all your fuses. Some running lights might get power back through the headlight circuit when a fuse is blown, but will act strange. Grounding and fuses are the most likely causes for this. Maybe a bad headlight switch or relay could be the culprit.