My 99 Dash Has Gone Nuts!!!
Thread Starter
Cruising
Joined: Aug 2005
Posts: 10
Likes: 0
From: Canyon Lake Texas
My 99 Dash Has Gone Nuts!!!
I went out to drive my baby. It starts and drives fine but every warning and light is lit. ABS, Traction, Warnings for engine power reduced. Low Fuel..( It's Full ) Shocks Inoperative, No Tire Pressure, Service Soon, Service Everything!!! It was fine last time I drove it.
I drove it around for about 15 mins and parked it then Came out the problem cured itself. Then Drove it home everything working fine.
Started it this morning IT"S BACK... This car has only 40,000 miles on it and is kept in a garage and never sees rain. The underside is as clean as the day it was delivered. What gives??? Looked at grounds clean.. Battery New... It's possessed!!! HELP 99 Corvette convertable all factory options...any ideas???
I drove it around for about 15 mins and parked it then Came out the problem cured itself. Then Drove it home everything working fine.
Started it this morning IT"S BACK... This car has only 40,000 miles on it and is kept in a garage and never sees rain. The underside is as clean as the day it was delivered. What gives??? Looked at grounds clean.. Battery New... It's possessed!!! HELP 99 Corvette convertable all factory options...any ideas???
Melting Slicks
Joined: Sep 2011
Posts: 2,258
Likes: 543
From: Appleton WI
Follow the link below. Scroll down to Bill Curlee's response. He has an excellent pictorial on what to look for and what to fix. I know you're having problems with the dash and the link talks about door locks and windows inop. I was having problems with both doors and the dash. This fix cured both problems. If this doesn't work, look at the sticky that Bill has posted up at the top of this Tech forum for grounding issues. Try the door fix first. It is simple and fast. Kudos to Bill.
http://forums.corvetteforum.com/c5-t...move+door+boot
http://forums.corvetteforum.com/c5-t...move+door+boot
Last edited by 3sACROWD; Oct 6, 2011 at 08:03 AM.
Thread Starter
Cruising
Joined: Aug 2005
Posts: 10
Likes: 0
From: Canyon Lake Texas
Update 99 Dash gone nuts
I have been trying to pull the codes un-successfully. I have pulled apart all the ground assemblies. There all as clean and new as the day it was first delivered.
I don't get to drive the car much hence the 40,000 orginal miles. This car has been babyied since I got her. This problem is driving me nuts!!
I have been working on and around vettes for years. The Battery is NEW and it's always on a battery tender year round.
STILL LOOKING... what is still wierd is that if you drive the car for around 15 mins then stop and restart her the problem goes away until it's left overnight. Then it re-appears. AGUGHhhhhh!!!
I don't get to drive the car much hence the 40,000 orginal miles. This car has been babyied since I got her. This problem is driving me nuts!!
I have been working on and around vettes for years. The Battery is NEW and it's always on a battery tender year round.
STILL LOOKING... what is still wierd is that if you drive the car for around 15 mins then stop and restart her the problem goes away until it's left overnight. Then it re-appears. AGUGHhhhhh!!!
Melting Slicks
Joined: Sep 2011
Posts: 2,258
Likes: 543
From: Appleton WI
I agree he needs to check the door connections. I didn't have the out of shape female pin that Bill refers to (on either side) but I taped around the bare wire then taped the wires to the connectors and my dash problem and door issues went away.
What clued me into the door was one day when my dash was acting up, I had stopped the car and was getting out while the engine was running. As soon as the door was fully open, the dash problem went away. That is why I started to search on the forum for a cure. I too could shut off the car and restart to clear the problem temporarily.
Give it a try. It only takes a half hour at most.
What clued me into the door was one day when my dash was acting up, I had stopped the car and was getting out while the engine was running. As soon as the door was fully open, the dash problem went away. That is why I started to search on the forum for a cure. I too could shut off the car and restart to clear the problem temporarily.
Give it a try. It only takes a half hour at most.
Thread Starter
Cruising
Joined: Aug 2005
Posts: 10
Likes: 0
From: Canyon Lake Texas
I have been trying to pull the codes un-successfully. I have pulled apart all the ground assemblies. There all as clean and new as the day it was first delivered.
I don't get to drive the car much hence the 40,000 orginal miles. This car has been babyied since I got her. This problem is driving me nuts!!
I have been working on and around vettes for years. The Battery is NEW and it's always on a battery tender year round.
STILL LOOKING... what is still wierd is that if you drive the car for around 15 mins then stop and restart her the problem goes away until it's left overnight. Then it re-appears. AGUGHhhhhh!!!
I don't get to drive the car much hence the 40,000 orginal miles. This car has been babyied since I got her. This problem is driving me nuts!!
I have been working on and around vettes for years. The Battery is NEW and it's always on a battery tender year round.
STILL LOOKING... what is still wierd is that if you drive the car for around 15 mins then stop and restart her the problem goes away until it's left overnight. Then it re-appears. AGUGHhhhhh!!!
Anyway I re-started the car the problem vanished again. I am not sure if it's because the engines is up to Temperature or I accidentaly
moved something. Will have to wait till it cools to cold before another try. I also checked all the fuses on passenger side only found one 10 amp fuse blown. Replaced it checked the ones topside. all ok.. anyway.. I will keep everyone updated.
By the time I re-started it about 30 mins ago. The problem was gone for the moment.. when it's cool I will know the truth...
Last edited by Guitarbare; Oct 7, 2011 at 02:06 PM. Reason: spelling
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Drifting
Joined: Feb 2008
Posts: 1,596
Likes: 67
From: Bahama North Carolina
Now is the time to pull the codes. You should have several. You are using the dic to check the codes?? The codes will tell you if you are having a voltage problem.
Thread Starter
Cruising
Joined: Aug 2005
Posts: 10
Likes: 0
From: Canyon Lake Texas
Getting nowhere fast...
anyone have any ideas? Still searching as of the moment
Larry
99 Corvette Convertible Fully Loaded all options DASH gone nuts!!!
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
It was suggested that you check the door accordian tube connectors for a lose pin/socket. This will cause your issues such as a simple opening or closing of the door. Bill Curlee has posted a picture of the offending serial interface pin/socket so you should really look at it.
Thread Starter
Cruising
Joined: Aug 2005
Posts: 10
Likes: 0
From: Canyon Lake Texas
Finally Retrived the CODES here they are...
Ok here is what I have done today. I drove the car till the symptoms went away. After it warmed up all returns to normal.
Finally got past the NO COMM messages.. FOUND A TON OF CODES
how many are relevant who knows.
Here is a List 10-PCM P1626H P1689H
28-TCS C 1255H C 1276H U1016H
38 RTD returned NO CODES
40 BCM U-1255H U-1096H U1016H
58 U-1000H U-1016H U1040H U1096H
60 IPC U-1255 U 1016H U-1160 U-1088H
80 Radio U-1064 U 1096H U 1016H
99 HVAC U-1064H U-1096H U 1160H
A0-LDCM U 1255 H U1064H U1016H U1096H
A1- RDCM exactly the same codes as the A0
A6-SCM U1160H U1016H U1064H
BO-RFA U 1255H U1096H U1064H U1016H
C 2110H
after writing all of this down and posting it here I have erased everything and now will go drive the car to see what current codes will set.
Anyway I have never been in there in all the years I have owned this car.. perhaps that's why there are so many?
Thread Starter
Cruising
Joined: Aug 2005
Posts: 10
Likes: 0
From: Canyon Lake Texas
Ok Lets review what I have done so Far. NEW BATTERY, Disassembled and cleaned all ground connections in engine compartment.
Took door door accordian tubes both sides connectors apart checked everything.. Cleaned ( even though they did not appear to need it.) Reassembled.
Removed battery tray NO ACID or corrosion anywhere ..in fact it's so clean you could eat off that area. Checked all fuses inside and outside car.. only one found bad... Engine hood light .
Unplugged and re-plugged the On-board Body Computer ... checked... ultra clean No corrosion anywhere... This car is Garaged and has only seen 2 rainstorms in it's entire life. It has only 40,000 original miles on it.
It's in the middle of TEXAS.. no salt air! Well that's it in a nutshell.. Still no answer as to why??
Took door door accordian tubes both sides connectors apart checked everything.. Cleaned ( even though they did not appear to need it.) Reassembled.
Removed battery tray NO ACID or corrosion anywhere ..in fact it's so clean you could eat off that area. Checked all fuses inside and outside car.. only one found bad... Engine hood light .
Unplugged and re-plugged the On-board Body Computer ... checked... ultra clean No corrosion anywhere... This car is Garaged and has only seen 2 rainstorms in it's entire life. It has only 40,000 original miles on it.
It's in the middle of TEXAS.. no salt air! Well that's it in a nutshell.. Still no answer as to why??
Last edited by Guitarbare; Oct 8, 2011 at 07:08 PM.
Thread Starter
Cruising
Joined: Aug 2005
Posts: 10
Likes: 0
From: Canyon Lake Texas
FIXED!!! You will not believe where and what
Ok after hours and hours of disconnecting modules and cleaning ground paks. Disassembling wire harnesses in door accordions and such It turns out it was none of the above...
While looking for another ground pak behind the battery I decided for whatever reason to pull the fuse panel in the engine compartment. After I removed it I noticed a wire loom was squished behind the bottom bolt and the lower plastic mount. The wires were exposed and shorting out on the bolt. After repairing several connections putting the fuse panel back making sure nothing was caught between the bottom and that bolt.
Fired up the car and all is perfect!!! A frayed wiring harness was all that was to blame. Now my vette works perfect and sets no codes!!! ALL IS WELL IN THE KINGDOM.. much thanks to Bill Curlee for all his advice and keeping me focused. It was a long search turned out a simple fix no bad modules or parts nessary!!!
While looking for another ground pak behind the battery I decided for whatever reason to pull the fuse panel in the engine compartment. After I removed it I noticed a wire loom was squished behind the bottom bolt and the lower plastic mount. The wires were exposed and shorting out on the bolt. After repairing several connections putting the fuse panel back making sure nothing was caught between the bottom and that bolt.
Fired up the car and all is perfect!!! A frayed wiring harness was all that was to blame. Now my vette works perfect and sets no codes!!! ALL IS WELL IN THE KINGDOM.. much thanks to Bill Curlee for all his advice and keeping me focused. It was a long search turned out a simple fix no bad modules or parts nessary!!!
