2005 Tahoe
Two weeks ago, I swapped out the blown incandescent bulbs in my dash cluster for LEDs. Right after this, perhaps just coincidentally, a few things happened. First my headlights would come on or turn off at random times, but only during the day. This started happening almost the day after the led swap. The next thing that happened is that I noticed my voltage was sitting around 11 volts. Hooking up an OBD2 confirmed that my voltage was fluctuating between 11.4 and 12.9. After stopping at Autozone, it was confirmed that the alternator was shot as well as the battery (I am guessing the bad battery caused the alternator to burn itself out). After swapping out both, the headlight issue seems to maybe slowed down, but it still happens. Sometimes just putting the key into ACC position will cause the lights to come on. But, again, only during the day. There is nothing on the dash and nothing on the daylight sensor (I really had to look because we just went through lovebug season here in Florida and those suckers get everywhere.) I am just spitballing, but I think it is probably an issue with the relay for the auto headlights, but that begs the question as to why the issue only happens at night? If the relay were bad, wouldn't that affect night time usage as well? I also keep wondering if maybe if somehow the LED swap has anything to do with it, but that just doesn't make sense to me at all.
Any insights?
Two weeks ago, I swapped out the blown incandescent bulbs in my dash cluster for LEDs. Right after this, perhaps just coincidentally, a few things happened. First my headlights would come on or turn off at random times, but only during the day. This started happening almost the day after the led swap. The next thing that happened is that I noticed my voltage was sitting around 11 volts. Hooking up an OBD2 confirmed that my voltage was fluctuating between 11.4 and 12.9. After stopping at Autozone, it was confirmed that the alternator was shot as well as the battery (I am guessing the bad battery caused the alternator to burn itself out). After swapping out both, the headlight issue seems to maybe slowed down, but it still happens. Sometimes just putting the key into ACC position will cause the lights to come on. But, again, only during the day. There is nothing on the dash and nothing on the daylight sensor (I really had to look because we just went through lovebug season here in Florida and those suckers get everywhere.) I am just spitballing, but I think it is probably an issue with the relay for the auto headlights, but that begs the question as to why the issue only happens at night? If the relay were bad, wouldn't that affect night time usage as well? I also keep wondering if maybe if somehow the LED swap has anything to do with it, but that just doesn't make sense to me at all.
Any insights?