Ive chacked fuses (under dash & Eng) and even replaced the lighting relay. For some reason there are no park lights, tail lights or interior dash lights. Headlights work fine. Cant figure this out, anyone ever had this problem or any other suggestions. Im running out of options. I need help

**** UPDATE ON PG3 for temp fix *****


Modified by CRexer101 at 8:57 AM 8/7/2005

 

your dimmer switch is bad or not pluged in, its the little dial that dims the dashlights. if its not plugged in or went bad, all those things won't work

 

I feel your pain...I am through the same, and I just cannot find the problem.

 

Hmmm...how certain are you on this...cause Im gonna try it but I dont see how dimmer affects outside lights.

 

Maybe try rechecking every fuse just to be sure none are blown, cause it really sounds like a bad fuse or bad relay...If its none of those, then maybe your multiplex unit is bad.....Awhile back my dash lights and my switches for my sunroof, dimmer, cruise weren't working. Come to find out, my passangerside multiplex unit was bad. Once I replaced it, everything worked just fine. Its the black box located behind the passangerside kick panel

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JonGP4 &raquo;</TD></TR><TR><TD CLASS="quote">your dimmer switch is bad or not pluged in, its the little dial that dims the dashlights. if its not plugged in or went bad, all those things won't work </TD></TR></TABLE>

Not true. I took my dimmer switch out and put my fog light switch in its place, and everything will still work just fine. Check your relays and fuses, if it's neither one of those, then its most likely your passangerside multiplex unit.

 

Checked dimmer switch.....nothing.....gonna try the multiplex box......how do these go for?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by prelude1897 &raquo;</TD></TR><TR><TD CLASS="quote">Not true. I took my dimmer switch out and put my fog light switch in its place, and everything will still work just fine. Check your relays and fuses, if it's neither one of those, then its most likely your passangerside multiplex unit. </TD></TR></TABLE>

musta been a different car i was think of then?.. the passager multiplex is right under the kick panal, i'm not real sure that would solve the problem, i thought if one of those boxes went bad, nothing would work.. door locks, lights, etc?.. could be wrong
i have a spare one if you wanna try it out.. PM me if your interested

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JonGP4 &raquo;</TD></TR><TR><TD CLASS="quote">

musta been a different car i was think of then?.. the passager multiplex is right under the kick panal, i'm not real sure that would solve the problem, i thought if one of those boxes went bad, nothing would work.. door locks, lights, etc?.. could be wrong
i have a spare one if you wanna try it out.. PM me if your interested</TD></TR></TABLE>

One thing might be out on the multiplex unit, but it still wouldn't cause everything else to fail. It really does sound like it's the multiplex unit causing your problem.

 

its your taillight fuse...make sure you check it really well..(if your headlights and break lights work, if the break lights dont work check your horn fuse) mine just did the same thing and i replace the tailight (15amp under dash) and horn (15amp i belive, under hood) and now mine works.
i replaced all the relays spend about 50 bucks in labor to just find the trouble, they could not even find it..so i took it home and pulled every fuse and i found 2 bad ones. good luck

btw: i also had to change all three break bulbs.

 

Pm sent......Im pretty sure i checked all the fuses...especially ones that dealt with lights. Ill swap it out and see. I appreciate all the help....thanx.....

 

Tail lamp fuse didnt work...Jon I'll be giving you a call about that multiplex...I couldnt get to go to San Anton yu think you could mail it. I'll send money order or something.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRexer101 &raquo;</TD></TR><TR><TD CLASS="quote">Tail lamp fuse didnt work...Jon I'll be giving you a call about that multiplex...I couldnt get to go to San Anton yu think you could mail it. I'll send money order or something. </TD></TR></TABLE>

If it is the multiplex unit, let us know

 

just checked the wiring diagrams for the exterior lighting, and it shows nothing about the multiplex, i looked at the multiplex wiring diagrams and it has 1 input for the lights but on the driver's side unit.. the passanger unit just seems to have outputs for the interior dashlights, and door locks.. nothing about the exterior lights.. i could be wrong.. but i still don't see how this would solve your problem..
Prelude1897 are you absolutly sure thats what they replaced?.. are you sure they didn't just try and rip you off?.. just making sure?.. in fact i'm gonna go pull out the passanger control unit and see if the lights come on without it..
will post back up in the morning

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JonGP4 &raquo;</TD></TR><TR><TD CLASS="quote">just checked the wiring diagrams for the exterior lighting, and it shows nothing about the multiplex, i looked at the multiplex wiring diagrams and it has 1 input for the lights but on the driver's side unit.. the passanger unit just seems to have outputs for the interior dashlights, and door locks.. nothing about the exterior lights.. i could be wrong.. but i still don't see how this would solve your problem..
Prelude1897 are you absolutly sure thats what they replaced?.. are you sure they didn't just try and rip you off?.. just making sure?.. in fact i'm gonna go pull out the passanger control unit and see if the lights come on without it..
will post back up in the morning</TD></TR></TABLE>

I'm not a 100% sure, but just check it out to be safe. I had the same problem with my dash lights, cruise, sunroof, dimmer switchs, and when I replaced it, they all worked just fiine. Look at your climate controls, does the light that shines across the bottom part light up? Not the buttons, but the portion below it for the temp. and the spot were to turn your A/C on. If that's not working, I'm pretty sure its the multiplex unit. I wish I had an extra one for you to try out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by prelude1897 &raquo;</TD></TR><TR><TD CLASS="quote">I'm not a 100% sure, but just check it out to be safe. I had the same problem with my dash lights, cruise, sunroof, dimmer switchs, and when I replaced it, they all worked just fiine. Look at your climate controls, does the light that shines across the bottom part light up? Not the buttons, but the portion below it for the temp. and the spot were to turn your A/C on. If that's not working, I'm pretty sure its the multiplex unit. I wish I had an extra one for you to try out. </TD></TR></TABLE>

yeah your problem was definitly the MP unit, because it supplies the main power to that whole switch panal... he is having exterior lighting issues,
honestly if its not your number 16 tail light fuse, then your combination switch is bad.. if u want, run a hot wire from any 12 volt source on the car straight to that no.16 fuse if your lights come on then its your switch thats bad.. if they dont come on then i'm wrong and it is some sort of MP unit issue

 

Im off friday....you wanna meet up in SA? Im too lazy to **** with paypal and wait on shipping. Ill just come down myself.

 

swapped switches.....still not working!!!!! ARRRGGGHHHH.....I checked the foglight bulbs, their good. The only thing is to check interior blubs. I looked at wiring diagrams too....Im confused and pissed!!!! So far 100 bucks wasted....still back to square one!

 

I could've told you swapping the switches wasn't going to do anything. Take them back and get your money back. Have you tried the multiplex unit yet?

 

Multiplex.....no I havent.....Theres three of them which one should I replace.....I got pissed and bought a multimeter. There is voltage coming to the fuse (No.10 15A). Now I have to chase wires.

 

Replace the passangerside one. Its behind the kick panel. It controls alot of stuff in your car. If you have a friend with a 5th Gen. Borrow his and see what happens

 

hey shane, thats crazy the switch should have worked.. at this point all i can say is you have a ground problem of some sort.. i never asked and proably should have.. do you have an aftermarket alarm on the car?.. just curious..
don't bother with the multiplex unit.. both you and i know its not tied into the exterior lighting in any way, shape or form.. the Multiplex does not control, nor tie into the exterior lighting.
now that you have a multimeter, check for continuty in all the wiring.. and check the grounds... good luck..
also check on your fusebox.. on the inside.. are they anywires going to C or D(in the imagine).. on your car?



Modified by JonGP4 at 4:50 PM 7/2/2005

 

prelude1987 -- tell me where in this diagram do u see that those lights are tied into the passanger multiplex unit?
and it's only giving signal to the driver's and door MP units.. not the other way around like your saying
http://zcrx-si.ravynx.net/html/misc/extlight.JPG

 

if your hazard switch has failed, this will cause these exact problems

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JonGP4 &raquo;</TD></TR><TR><TD CLASS="quote">prelude1987 -- tell me where in this diagram do u see that those lights are tied into the passanger multiplex unit?
and it's only giving signal to the driver's and door MP units.. not the other way around like your saying
http://zcrx-si.ravynx.net/html/misc/extlight.JPG</TD></TR></TABLE>

Its not even in that diagram. Where did you find that? You have the wrong one. I have a book on every electrical wire in a 97-01 Prelude. The book shows that the dash lights are connected in with the passangerside multiplex unit. I wish I had a digi cam to take pics for you.....I'll bet you $10 that if you swap out the multiplex unit, your dash lights will work again