Kasa80

Hey guys - anyone know the location of the daytime running light module?????

Any help here would be amazing.

tech

I don't know if it has day time running lights , what's the problem you have ?

Kasa80

Running lights arent working and neither are the instrument panel lights.

i figured it would automatically be the DRL module but at this point I will listen to all helpful notes!!!!

i was about to replace the dimmer and headliht switch as i figired it may be something to do with those.

any tips?

tech

Did you check all the fuses ?

Kasa80

I haabe checked all fuses yes. Ive replaced them all as well.....even if they looked good, they were all still replaced.

any other tips?

tech

Check the headlight switch next .

Kasa80

Would there be a point in replacing the dimmer as well at that point?

i guess so if im already under the steering.

will report back once i get it from rockauto.

djgrayxj

Note from DJ
90 Daytime Running Lamp Module Location Is Located passenger side engine compartment between the side and washer fluid container

cruiser54

The dimmer is in the headlight switch.

67 GMC

I posted on the other similar thread. Are we sure a 1990 has DRL? Wasn't required until after December 1st 1989.

cruiser54

I think the DRL thing was an unintended rabbit trail the OP went down.

67 GMC

Ok-Got it.

I just had a similar problem. Do your turn front turn signals work? I had a left turn signal bulb that shorted to ground in the socket. I had no IP or running lights, headlamps worked fine. Didn't notice until I was driving at night. I did have one fuse blown -I think it was INST LPS blown but not the PARK LPs but I could have that switched. Remove bulbs, check the sockets to see if anything funny there.

Could still be a bad headlamp switch (which is cheap and easy to replace).

Kasa80

Turn signals work fine both front and back. Going to replace headlight switch this afternoon and see what happens then. Will post update once i have results.

Cruiser also told me to check to actual fuse box as well. May be something weird happening to the contacts.

ive checked the firewall on the passenger side of engine and cant find that darn DRL module. I will look again this afternoon to ensure im not missing anything. May remove reservoir to check under bracket.