I bought my car in July of 2020 and it has had some weird electrical issue since I bought it. When I hit bumps the headlights (both) flicker and sometimes completely shut off for a few seconds. That is not all though. When this happens, the dash reverts back to the daytime lighting as well and there is a click that sounds the same as the indicator click. I can not figure out the issue here and I have not been able to find anything on here or other sites. I would like to get this solved so please let me know what you guys think, thanks!

 

In my laymans opinion, since both the headlights and the dash are affected, and you are hearing a turn signal sound, I'd start by confirming the connection and/or replacing the turn signal/headlight stalk. Could also be a bad relay, that could be an even easier and cheaper place to start.

 

By turn signal stalk, you mean the turn signal switch? Like the piece you move to turn the signal on? Also, which relay? Headlight or turn signal?

 

I would also check all my grounds and make sure the ground wires all around the car are connected well; no rips in the ground wires ect; seen this mess up stuff in a civic a ton of times.

 

The dash is following the headlights. It thinks you switched the lights off, so it also toggles dashto headlights off (daytime) mode.

So the thought its related to signal stalk (yes, the turn signal stalk that also has the headlight switch built in) makes sense.

One way to rule that in is to play around with manipulating the stalk as car is parked,with lights on. Try and simulate what happens when you hit a bump. Jostle the stalk around, bang sharply on the steering column with your hand, etc. If it reproduces effect, you've confirmed stalk or wiring in that general area.

The ground wiring theory also makes sense, as its easy to imagine a ground associated with the headlights. With lights on, parked, tug on all ground locations (do a search where they are located). If issue reproduced, you've found the bad ground. See if its loose or bad wire or needs to be cleaned up and greased.

 

I tried hitting the steering column and nothing happened. I have cleaned the headlight grounds really well and whatnot but I have not been able to pull on them at all to check it yet. I found someone local with an extra turn signal switch for cheap. I am going to buy it and replace it to see if that works.

 

Do you have fender liners on the car?

 

Yes, I do have fender liners.