Ok, I'm bringing this back up because I think my ICU has just failed again!

ITEMS That are not working -
Passive Seatbelts
Gauge Cluster
Turn Signals
Hazard Lights
Clock

THING that are working
Charging System
Starting System
Radio
Headlights

They all went at once and I don't feel safe driving around without turn signals around here and I definitely am not feeling well about the lack of seatbelt. Does anyone have a clear wiring diagram for the ICU so I can confirm all of these components run through it?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Original Post &raquo;</TD></TR><TR><TD CLASS="quote">First, the list of things I've replaced -
All light bulbs in question
Any corroded sockets
Column switch

Problem
The corner light blinkers will not work properly for the life of them, when I signal right the left corner lamp blinks, when I signal left the right one blinks. Sometimes they both blink, sometimes they don't blink at all. When the hazard switch is depressed, they don't blink.

What else could be wrong? I've been told to check "the ground," but which ground? Where does this circuit ground out at? All the other signals work fine (bumper, rear), it's just the corner lamps that are acting up. Also, all the wiring for the corner lamps is original OE and I have not touched it.

Any ideas?</TD></TR></TABLE>


Modified by dr_latino999 at 7:10 PM 10/4/2007


Modified by dr_latino999 at 7:11 PM 10/4/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote">First, the list of things I've replaced -
All light bulbs in question
Any corroded sockets
Column switch

Problem
The corner light blinkers will not work properly for the life of them, when I signal right the left corner lamp blinks, when I signal left the right one blinks. Sometimes they both blink, sometimes they don't blink at all. When the hazard switch is depressed, they don't blink.

What else could be wrong? I've been told to check "the ground," but which ground? Where does this circuit ground out at? All the other signals work fine (bumper, rear), it's just the corner lamps that are acting up. Also, all the wiring for the corner lamps is original OE and I have not touched it.

Any ideas?</TD></TR></TABLE>

The grounds for the lights are by the headlights.

It sounds like a turn signal switch problem.

You and the test light are going to be good friends.

 

I'll take a picture of the area of the bay, and then we can play "put a circle around the ground." The turn signal switch has been replaced with a known good one.

Another issue with the lights, sometimes they blink on the correct side but they limp into the blinking and get progressively dimmer.

 

I'm assuming the little white boxes are communal grounds?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote">



I'm assuming the little white boxes are communal grounds?</TD></TR></TABLE>

You are the man

 

Now here is my thought pattern - If it was the turn signal switch (which I've replaced), ALL the signals would be screwy, not just the corners. If it were those grounds, all the lights grounded there would be screwy. Now with those communal grounds, is it grounded to the frame, or do all the wires meet there to be combined to another wire that runs off somewhere else?

Are there any relays under the dash that directly deal with blinkers?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote">Now here is my thought pattern - If it was the turn signal switch (which I've replaced), ALL the signals would be screwy, not just the corners. If it were those grounds, all the lights grounded there would be screwy. Now with those communal grounds, is it grounded to the frame, or do all the wires meet there to be combined to another wire that runs off somewhere else?

Are there any relays under the dash that directly deal with blinkers?</TD></TR></TABLE>

Yes, there is a turn/hazard relay on the fuse block. I would check the hazard switch too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turbogixxer &raquo;</TD></TR><TR><TD CLASS="quote">
Yes, there is a turn/hazard relay on the fuse block. I would check the hazard switch too. </TD></TR></TABLE> I'm going to replace the hazard switch on Tuesday once the salvage yards open back up Where is relay on the fuse box, the one on the far left hand side or the one in the middle?

 

try unplugging the problem bulbs, and see it it still happens. If it comes to a last resort, cut all the grounds on the lights and ground them separately, you can crimp on some ring terminals and use self tapping screws into the chassis. also check the grounds at the rear they are behind the plastic by the rear lights. sounds like a ground problem, my friend had a problem with the brake/turn signals in the rear the turn signal bulb would light up when the brake was pressed, I took the whole wiring on that side out and cut off everything and made a new harness and soldered everything and the problem went away.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote"> I'm going to replace the hazard switch on Tuesday once the salvage yards open back up Where is relay on the fuse box, the one on the far left hand side or the one in the middle?</TD></TR></TABLE>

About middle of it.

I wish I had a clear pic of it.

 

In for 5 that it's the hazard switch

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crx Jimmy &raquo;</TD></TR><TR><TD CLASS="quote">try unplugging the problem bulbs</TD></TR></TABLE> Been there done that

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crx Jimmy &raquo;</TD></TR><TR><TD CLASS="quote">tcheck the grounds at the rear</TD></TR></TABLE> The rears are fine, they for once are behaving normal.<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turbogixxer &raquo;</TD></TR><TR><TD CLASS="quote">I wish I had a clear pic of it. </TD></TR></TABLE> I'll grab you one in the morning.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IndySporty &raquo;</TD></TR><TR><TD CLASS="quote">In for 5 that it's the hazard switch</TD></TR></TABLE> Raise you a quarter for me hoping its just the hazard switch.

 

you need to look at your lights.
take each wire from the plug, and trace them as far as possible, checking for breaks in the wire.
I had a problem of my headlights constantly turning on and off on one side and I couldnt firgure it out, and final I realized the wire had broke inside the plastic but not completely to where I could easily see.

I'm gonna guess it's a wiring issue, which really isnt that big of a deal.

 

--- Boxing Day Update ---
Replaced Hazard Switch --&gt; Still not correctly working
Replaced Relay --&gt; Still not working Correctly

So in review I have now replaced every single piece of the turn signal system.
- Bulbs
- Column Switch
- Hazard Switch
- Relays

The only thing left to do I'm assuming is to make my own grounds for the sockets and see if that makes the world a happier place.

 

Ok, I whipped out the trusty test light when I made my ground, the lights are NOT receiving power during Parking Light or Headlights On, and they are receiving power when the opposite side turn is indicated. Where is their a wire that would cause JUST THE CORNER INDICATORS to act screwy? According to my diagram up there, the turn signal indicators for the most part are wired in parallel and a whole side should act up if the wire is compromised.

 

Shot the mechanic

I will look at it more indepth later.

 

Ive seen a very similar problem, what had happened is there was a bulb with 2 filaments, and the 2 filaments had shorted to eachother, it is very rare but i've seen it happen and it was a god damn nightmare finding out what was wrong... You'd put the turn signals on and the whole interior lighting would blink and the lights wouldnt, you'd put the hazard on and nothing would work, etc...

Anyways check your bulbs, they may work, but they could be shorted and you cant visibly see it.

 

These bulbs in question though are 168's and those are Single Filament, but having all the interior lights flashing sounds pretty amusing

 

Your in luck as I am having the same problem and have already done those things also like change the bulbs and cleans the grounds and such... But that electrical diagram that you have is junk. It does not show the 1.side marker flasher relay with in the 2.integrated control unit located at the 3.under dash fuse box as illustrated in the pic(hard to see though), which is what i have narrowed mine down too. On another page it also says that if one or more of the side marker lights do not work correctly then replace the relay shown in the pic.I would also suggest getting that part from a junkyard. I don't know how much it is but its probably not much different then an Integra one that goes for about $300 from Honda.

 

Here's the text from the other page recommending replacment of that part and the description of the operation of the flashing of the lights using the single filament bulbs. And also you could use 194's in place of 168's(I got 194 LED's in mine).

 

So I have to replace the whole ICU? Does anyone have a picture where that is under the dash? Isn't in the fuse box?

 

heres the location




Modified by PACT man at 9:20 PM 12/26/2006

 

So if I understand this right, the ICU can be removed from the fuse box?

 

Sorry edited my last post with another pic after you had already posted. I don't know about removing the 2 from each other though, I guess unless someone else knows you could just pull the whole fuse box out from a junkyard car and find out if they come apart.

 

The ICU can be seperated, woot!


Ok, I'll head back to the salvage yard tomorrow and let you know. Thanks in advance for the pictures, and would I be able to get a copy of your manual since mine is hiding pertinent information from me?