C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

DIC lights always ON

Thread Tools
 
Search this Thread
 
Old Aug 29, 2014 | 04:32 PM
  #41  
78GEN3's Avatar
78GEN3
Racer
10 Year Member
 
Joined: Apr 2010
Posts: 266
Likes: 10
From: Noble OK
Default

This work around seems to have fixed my battery drain issue. After the work, I charged the battery and then the car sat for 3 days. I just went out and turned the key on and it still had a full charge.
Reply
Old Aug 29, 2014 | 05:08 PM
  #42  
4DRUSH's Avatar
4DRUSH
Le Mans Master
15 Year Member
 
Joined: Feb 2004
Posts: 8,629
Likes: 15
From: York PA
Default

Originally Posted by 78GEN3
This work around seems to have fixed my battery drain issue. After the work, I charged the battery and then the car sat for 3 days. I just went out and turned the key on and it still had a full charge.
Isn't it great, hell I even washed & waxed the car after that.
Reply
Old Jul 31, 2015 | 05:03 PM
  #43  
3on8's Avatar
3on8
Advanced
15 Year Member
 
Joined: Jan 2007
Posts: 76
Likes: 2
From: CA
Default

Hi Folks - I have this now, too. Any leads to a fix?
Reply
Old Aug 2, 2015 | 12:57 PM
  #44  
3on8's Avatar
3on8
Advanced
15 Year Member
 
Joined: Jan 2007
Posts: 76
Likes: 2
From: CA
Default

Originally Posted by GCG
I've been tracking down this issue for quite a while trying to find a resolution, but nothing yet... The people who have reported it never came back with an outcome...

I don't want to take my car to the dealership so they could experiment with it I know that fuse 25 in the fuse/relay panel under the passenger's feet powers those lights among other things. I decided to install a remote switch connected in series with that fuse, and hide it somewhere under the driver's seat. That way I could easily interrupt power to the DIC's backlights after I turn off the car and re-establish it before turning the car on. I already purchased what I need, but haven't had time to install it.

I know it is not a solution, just a workaround, but it will allow me to regain some normalcy
Tried to send IM; thanks for the help, GCG.
Reply
Old Aug 3, 2015 | 12:35 AM
  #45  
GCG's Avatar
GCG
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Default Resolution

Originally Posted by 3on8
Tried to send IM; thanks for the help, GCG.
You're welcome!

Just for the record, the problem was the IPC. Its main board also controls these backlights. I replaced the IPC and everything went back to normal. The additional complication is that it stores the car's mileage as well, so it would require programming the "new" IPC with the car's current mileage.

In the meantime, before I was able to replace the IPC, what I did to get by was a workaround that made my life a little easier. It is described above in this thread in post 29.

Reply
Old Aug 3, 2015 | 06:53 AM
  #46  
dadaroo's Avatar
dadaroo
Le Mans Master
 
Joined: Mar 2011
Posts: 6,835
Likes: 301
From: Columbia SC
Default

Thanks for the update. I though that was the issue at around post 34 and 35.


Mr. Sam
Reply
Old Nov 27, 2017 | 12:55 AM
  #47  
jdmvette's Avatar
jdmvette
Night Owl for life
Supporting Lifetime
20 Year Member
All Eyes On Me
Shutterbug
Top Answer: 5
 
Joined: Nov 2003
Posts: 24,684
Likes: 4,528
From: Bugs Bunny should'a made a left turn here
Default

A couple years late to this thread but it looks like I just got bit with this issue...ugh








From the posts of yore, it appears the only thing that fixes the issue is a new IPC... wonderful.

I still love my C5 though
Reply
Old Nov 27, 2017 | 10:50 AM
  #48  
GCG's Avatar
GCG
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Default

I'm sorry to see that. Just out of curiosity, did it happen completely out of the blue all of a sudden, or is there something you might think could be linked to this?

In my case, the only real solution was to replace the IPC. In the mean time I installed a simple workaround that allowed me to function. It is described above.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-1

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-2

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-3

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-6

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-7

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-8

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-9

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
Old Nov 27, 2017 | 01:13 PM
  #49  
jdmvette's Avatar
jdmvette
Night Owl for life
Supporting Lifetime
20 Year Member
All Eyes On Me
Shutterbug
Top Answer: 5
 
Joined: Nov 2003
Posts: 24,684
Likes: 4,528
From: Bugs Bunny should'a made a left turn here
Default

Actually, not out of the blue. I have been dicking around with replacing those lights to LEDs as they have been out of flickering for quite some time now.

Also, my stock key fobs have been inop for a couple years now so I installed an Avital 2101L keyless entry system just yesterday.

I tapped into 2 wires at the BCM, one to pop the hatch and the other to the horn output, that was all.

The other Avital tapped wires were to the driver door control module and power to the ignition switch.

Not sure how it all relates but it's annoying for sure. Luckily the bulbs I have in the two switches are all led so their current draw should be very small.

I didn't even know this hud/dic-light-staying-on-thing was even a thing until I found this thread.
Reply
Old Nov 27, 2017 | 03:04 PM
  #50  
GCG's Avatar
GCG
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Default

Originally Posted by jdmvette
...Not sure how it all relates but it's annoying for sure. Luckily the bulbs I have in the two switches are all led so their current draw should be very small...
Me neither... at least it's not evident. As you said, with LEDs you have small currents and very little heat when compared to the OEM bulbs, but if looking at them bothers you, you can do what I did until I replaced my IPC.

Fuse 25 in the fuse/relay panel under the passenger's feet powers those lights among other things. I installed a remote switch connected in series with that fuse, and hid it under the knee bolster. That way I was able to interrupt power to the DIC's backlights after turning off the car, and re-establish it before turning the car on.

Everything was very clean and completely reversible. I used this adapter to put a switch in series with fuse 25:

And one of these:
This is how they looked in the fuse box:

And this how the switch looked installed:

Last edited by GCG; Nov 27, 2017 at 05:08 PM.
Reply
Old Nov 27, 2017 | 11:13 PM
  #51  
jdmvette's Avatar
jdmvette
Night Owl for life
Supporting Lifetime
20 Year Member
All Eyes On Me
Shutterbug
Top Answer: 5
 
Joined: Nov 2003
Posts: 24,684
Likes: 4,528
From: Bugs Bunny should'a made a left turn here
Default

Those are great instructions. Very helpful, thank you. :Cheers:
Reply
Old Dec 4, 2017 | 08:46 AM
  #52  
jdmvette's Avatar
jdmvette
Night Owl for life
Supporting Lifetime
20 Year Member
All Eyes On Me
Shutterbug
Top Answer: 5
 
Joined: Nov 2003
Posts: 24,684
Likes: 4,528
From: Bugs Bunny should'a made a left turn here
Default

Originally Posted by GCG

In my case, the only real solution was to replace the IPC.
Hi GCG

Unfortunately, your solution for this problem was the correct one.

I got my hands on another IPC and the issue is gone.

Doing a direct A-to-B comparison by plugging the very same DIC options switch from my old cluster to the new one confirms this. Old cluster the lights on the DIC switch never shut off, new cluster they shut off normally.

At least the issue is resolved and my Y2K coupe is now an anniversary edition with 50000 fewer miles


Reply
Old Dec 4, 2017 | 10:18 AM
  #53  
GCG's Avatar
GCG
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Default

Originally Posted by jdmvette
Hi GCG

...At least the issue is resolved and my Y2K coupe is now an anniversary edition with 50000 fewer miles

Glad you were able to solve the problem and upgrade your car 3 years at the same time!

Reply
Old Jan 30, 2019 | 03:50 PM
  #54  
GCG's Avatar
GCG
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Default

Although I posted the resolution to this problem back in 2015, I realized it got buried inside this thread when I recently got a PM asking me about this.

I wrote the following summary that I think might be useful for others, and I updated this thread's OP with it as well:

Unfortunately it was the IPC

Here are some links to save me some typing. Basically, these are the options:
  • True solution: replace IPC. Since the mileage is stored in the IPC, you have 2 options to keep the correct reading:
  • Workaround solution: take the DIC lights off from their broken circuit and connect them to the Parking Lights circuit. This way your buttons will be lit whenever you switch ON your Parking Lights/Fog Lights/Headlights.
  • Easier Temporary Workaround: manually control the DIC lights.

I hope this helps.

Last edited by GCG; Jun 9, 2019 at 11:04 AM.
Reply
Old Jan 30, 2019 | 10:21 PM
  #55  
jdmvette's Avatar
jdmvette
Night Owl for life
Supporting Lifetime
20 Year Member
All Eyes On Me
Shutterbug
Top Answer: 5
 
Joined: Nov 2003
Posts: 24,684
Likes: 4,528
From: Bugs Bunny should'a made a left turn here
Default

Originally Posted by GCG
**** I wish I knew how to do this ↑ but i'm still rocking my low-milage 2003 anniversary cluster on my 2000 DD beater
Reply
Old Oct 14, 2021 | 05:04 PM
  #56  
Lmill92's Avatar
Lmill92
3rd Gear
 
Joined: Aug 2021
Posts: 3
Likes: 0
Default

Originally Posted by GCG
Although I posted the resolution to this problem back in 2015, I realized it got buried inside this thread when I recently got a PM asking me about this.

I wrote the following summary that I think might be useful for others, and I updated this thread's OP with it as well:

Unfortunately it was the IPC

Here are some links to save me some typing. Basically, these are the options:
  • True solution: replace IPC. Since the mileage is stored in the IPC, you have 2 options to keep the correct reading:
  • Workaround solution: take the DIC lights off from their broken circuit and connect them to the Parking Lights circuit. This way your buttons will be lit whenever you switch ON your Parking Lights/Fog Lights/Headlights.
  • Easier Temporary Workaround: manually control the DIC lights.

I hope this helps.

I recently ran into this problem that I see you had way back. My lights now stay on all the time after I replaced the old oem bulbs with LEDs. I’m sorry to bug you about this. You’re old posts are extremely helpful. I’m still trying to consider which of those options I would like to pursue.
I was hoping to ask you a couple questions.

If I chose to replace the whole cluster, is the new one just a simple plug-&-go? Or is there any kind of further install involved?
Then secondly, if I chose to add the manual on/off switch, I see the parts that you needed. Do you happen to have a list of those parts names to look them up on Amazon, or elsewhere?

thanks for any help on this. This post has been SUPER helpful so far!
-Levi

Reply
Old Oct 21, 2022 | 06:27 PM
  #57  
99 Ragtop's Avatar
99 Ragtop
1st Gear
 
Joined: Oct 2022
Posts: 1
Likes: 0
From: Washington
Default

I’m new to this forum and I have found a lot of useful information here. I have a 1999 C5 without HUD and I have the dreaded DIC lights always on. I have recently replaced the BCM because I thought it was the source of my parasitic draw. I found this thread on your work around with the fuse adapter and rocker switch. I would like to try this temporary fix. Thank you for the pictures you posted. It appears there are two wires, black and pink. Where exactly did you land the two wires?
Reply
Old Oct 27, 2022 | 10:44 AM
  #58  
jdmvette's Avatar
jdmvette
Night Owl for life
Supporting Lifetime
20 Year Member
All Eyes On Me
Shutterbug
Top Answer: 5
 
Joined: Nov 2003
Posts: 24,684
Likes: 4,528
From: Bugs Bunny should'a made a left turn here
Default

^ I don't know about any of that but a gauge cluster swap is still working out for me.





Just going to be forever until the mileage is correct...

New, "turns off" cluster




Original "always on" cluster


Reply




All times are GMT -4. The time now is 01:24 AM.

story-0
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-1
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-2
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-3
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE