So Im having this issue with my integra. Just to start off is a 1990 ls sedan. It does have drl, but they are disconnected by just unpluging the drl relay. Anyways this week my parking lights stopped working. So my tail lights, and side markers dont work. But my signals, headlights, brake lights and interior lights do still work. I’ve checked all the fuses and everything is good. Also the drl relay has been disconnected for over a year now and I havent had any issues since now, so I dont think thats my problem. Could it be possible that there is a problem with the headlight switch itself? Im not sure where to start diagnosing this problem. Any help would be appreciated. Thanks!
If the park light fuse is still good, [fuse #1 - 15A] on 90 G2 w/DRLs, then it is either the head light switch or a wiring problem.
To be sure it is not a fuse issue, replace fuse #1 with a new or known working 15A fuse, [swap it with another 15A fuse in fuse box if you do not have a spare] DO NOT use a bigger then 15A fuse.
Fuses can look good but still be bad, ATC, [blade type] fuses can break at point where fuse filament connects to fuse “legs”, fuse is not blown, [no short in circuit] just broken. 94
Well alright I tried a new fuse and that was a no go, im going to try a new switch hopefully sometime this week, if I can find one at the wreckers. Lets just say its not that either. Where would I start as far as looking over wiring? I appreciate your help!
Alright well I just took the headlight switch out of my other DA since I didnt feel like waiting and it still doesnt work, so it looks like theres some sort of wiring issue. Any idea where I should start?
Start by seeing if your back-up lights work.
Also, just to be sure, check fuse #11 - 15A, park light power for 90 G2s without DRLs, my Haynes manual has been wrong before.
Next, test for power at the fuse, [both test tips and both fuse #1 and #11] with head light switch on in park or head lights.
If no power at the fuse test for power on the red/green lead coming from head light switch at both the switch end and at steering column harness plug.
Power for park lights, [before switch] is the same as head lights, [white] so it is not the problem, and because you replaced the switch the problem must be after switch.
I would also make sure all plugs are properly plugged into the under dash fuse box. 94
My back up lights do work, and I also checked fuse #11 and replaced it and it was fine also. I’ll go buy a test light today and hopefully I’ll have time to check it out tonight.
The back-up lights are on the same circuit as the park lights, confirm they only work when head light switch is on, [park or head light position] if so, the head light switch and wiring to fuse box is good, you should get power at the fuse when head light switch is on.
It is very strange that the back-up lights work but the park lights do not, I would guess that all the park light bulbs are burnt out, very unlikely, a connection problem would be more likely but that would mean both the connections for the front lights and the connection for the rear lights and the connection for the front side markers would all have to be bad.
Start by confirming back-up lights are still on park light circuit.
Will they work without park/head light switch on?
If switch needs to be on for them to work, do they go out if you pull fuse 1 or fuse 11? 94
Alright heres the update,
Getting power to fuse #1 with switch in parking/headlight position.
Getting power to switch at Red/Green wire when back probing at both positions.
Reverse lights work at all times. As long as key is in run position they work doesnt make difference which position the headlight switch is in.
Also pulling fuse 11 or 1, reverse lights still work.
Now heres the thing. There is no power at fuse #11, no matter what position the headlight switch is in. So i think that may be my problem?
Also I was trying to see where the column harness plugs into the fuse box to make sure its properly clipped in but it looks like it goes somewhere behind it and I cant find where it goes.
There are a number of plugs at the back of the fuse box…
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Sorry, my mistake, I was not reading the schematic properly, back-up lights are on the same circuit as the signal lights, fuse #1 (91-92) and fuse #23 (90) and it is an ign. circuit, pull fuse #23 - 10A to confirm.
If so, it would mean that fuse #1 - 15A, [90 Integra with DRLs only] is the park light fuse, so nothing changes, you said it gets power, [fuse #1] when park/head light switch is on, so problem is after the fuse, head light switch is good and it’s harness is properly plugged in.
I would now want to know why there is no power on fuse #11 -15A, you said there was no power on the fuse no matter what the position of the head light switch was in, how about when ign. switch is on, [car running]?
Do the dash lights work, how about glove box light, if you have one?
Do the dash lights go out if you pull fuse #1, fuse #11 or fuse #23?
If no power to fuse #11 at any time, use a jumper wire from the 12V+ constant “free pin”, [empty terminals just above fuses] to fuse 11, what happens??? 93
I dont remember if I had the key on the on position or not when I tested for power at fuse 11. I will double check that tomorrow.
All the dash lights, a/c control lights, radio alumination do work. Although I dont have a glove box light in the glove box see if it works.
If I dont get power to fuse 11 i’ll try jumping it to let you know what happens.
Alright heres the update,
Checked again and no power at fuse 11 at any time, doesnt matter key or headlight switch position.
I did what you told me, to use a jumper wire from the fuse box power to fuse 11 and I have parking lights!! So I guess my issue is that I am not getting power to fuse number 11.
Had another question, is there any danger to drive it as is for now? I really need to use the car and I cant drive it at night without the lights. Although I do want to fix this the right way.
No problem as long as power goes through fuse #11.
Try this, plug the DRL relay back in and see if park lights work, if so find the proper set of leads to jump in the DRL relay plug for park lights to work if you do not want the DRLs to work.
If plugging the DRL relay back in does not work, [give you park lights] then pull fuse #11 and supply power with jumper to each fuse “socket”, stick jumper into socket that does not turn on the park lights then install fuse so power must go through fuse for park lights to work, then pull jumper from 12V+ constant free pin and plug it into the park light free pin, [if it works] that way you can turn park lights on and off with the park/head light switch, [almost normal]. 94
I dont have the drl relay anymore so Im going to have to grab one somewhere to see if it will start to work. The free pins that work with the headlight switch dont work though. Only the two that run off the key work for some reason? The way I set it up now is putting a jumper wire from fuse 1 into fuse 11 and the parking lights work like they normally would now. This wont harm anything will it for now? I dont want to overload it or something.
I would use one of the free pins, 2nd ign. free pin maybe, you are adding a 15A load to a to an existing 15A circuit, a possible 30A load for a circuit designed for 15A, IMO it would be safer to use a free pin, or you can install a relay. 94