Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

Help!!! Dic Has No Comm.

Thread Tools
 
Search this Thread
 
Old Oct 23, 2007 | 08:20 AM
  #1  
97CO's Avatar
97CO
Thread Starter
Navigator
 
Joined: Oct 2007
Posts: 9
Likes: 0
Default Help!!! Dic Has No Comm.

I Am Unable To Run Through The Codes On My 97.

Any Help Is Appreciated

Thanks, Chase
Reply
Old Oct 23, 2007 | 08:49 AM
  #2  
AC54ME's Avatar
AC54ME
Team Owner
Supporting Lifetime Gold
10 Year Member
 
Joined: Feb 2003
Posts: 37,329
Likes: 12
From: Plano Texas
CI 6-7-8-9 Veteran
CI-VI Car Show Winner
St. Jude Donor '07-'08-'09-'10-'11-'12-'13
Default

We'll need to understand the issue more fully to assist.

Are you following these instructions to gain access to the codes:

Turn the key to the ON position, but don't start the engine. Clear any present messages by pressing the RESET button (BE SURE THAT YOUR DOORS ARE CLOSED). Hold the OPTIONS button down, and press the FUEL button 4 times. This will get you into the CODES section of the DIC. The computer will automatically display all the codes your car has created. It will cycle through each code every 3 seconds. Any code that ends in H is a history code (something that has occured in the past) but is fine now. Once the computer has finished going through all of it's codes, press RESET to enter Manual Configuration mode. It should start with a module and show "NO CODES" or "# CODES".

Does the DIC accept this process?
Reply
Old Oct 23, 2007 | 10:27 AM
  #3  
97CO's Avatar
97CO
Thread Starter
Navigator
 
Joined: Oct 2007
Posts: 9
Likes: 0
Default

It Will Let Me Try To Run The Codes But They All Pop Up

Ecm- No Comm.
Rdcm-no Comm.

Every One Of Them Does This

I Was Having Trouble With The Pass Door Window Would Not Work. I Check The Wires In The Door Jam All Ok So I Changed The Pass Door Modual And The Window Started Working But Only From The Pass Side Will Not Work From Drivers Side.

Thanks Chase
Reply
Old Oct 23, 2007 | 10:36 AM
  #4  
screw991le's Avatar
screw991le
Race Director
10 Year Member
 
Joined: Sep 2004
Posts: 17,786
Likes: 4
From: Redsox, Pats, Celts & Bruins !!! Redsox Nation !!!
St. Jude Donor '06-'07-'08-'09-'10-'11-'12
Default

I had to read that heading twice
Reply
Old Oct 23, 2007 | 10:45 AM
  #5  
AC54ME's Avatar
AC54ME
Team Owner
Supporting Lifetime Gold
10 Year Member
 
Joined: Feb 2003
Posts: 37,329
Likes: 12
From: Plano Texas
CI 6-7-8-9 Veteran
CI-VI Car Show Winner
St. Jude Donor '07-'08-'09-'10-'11-'12-'13
Default

If I understand the issue - this started after changing the passenger door module - correct?

Prior to that activity there was not a problem - correct?

Presumming the above is correct - I would first disconnect the 'new' passanger door module.

Now try the DIC.

If it works, the problem is isolated to the module (and or connection).

Let us know the results.
Reply
Old Oct 23, 2007 | 10:45 AM
  #6  
C5'S LS1's Avatar
C5'S LS1
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2007
Posts: 1,881
Likes: 0
From: Newark Cali
Default

Originally Posted by screw991le
I had to read that heading twice
Your bad

Reply
Old Oct 23, 2007 | 11:02 AM
  #7  
C5starman's Avatar
C5starman
Burning Brakes
Supporting Lifetime
10 Year Member
 
Joined: Jun 2003
Posts: 1,100
Likes: 0
From: The Great State of Texas
CI 7-8 Veteran
Default

It may not apply in your case, but check out the electrical sticky in the Tech section. There is a wire in the door to body connection that can cause many problems if bare.
My seats stopped holding memory settings. It was driving me nuts. I did the simple fix posted by Bill Curlee and it took care of my problem.
It is worth a look.
Reply
Old Oct 23, 2007 | 11:45 AM
  #8  
97CO's Avatar
97CO
Thread Starter
Navigator
 
Joined: Oct 2007
Posts: 9
Likes: 0
Default

Before I Changed The Door Modual All Guages Were Crazy
Temp At 260
Oil At 0
Fuel At 0
The Pass Window Would Not Work

And The Dic Would Run Codes Every Once In A While

After Door Mod Was Changed All Guages Appear Fine
But The Dic Has No Comm.
Pass Door Works But Not From Drivers Side Only Pass Side Controls

Thanks, Chase
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Oct 23, 2007 | 11:55 AM
  #9  
jbondfl's Avatar
jbondfl
Melting Slicks
Supporting Lifetime
15 Year Member
Veteran: Navy
 
Joined: Aug 2006
Posts: 2,866
Likes: 45
From: Tampa Bay, Go BUCS!!!Go Rays!!!Go Lightning!!!
St. Jude Donor '12-'13-'14
Default

I hope this isn't it but you need to check this:

Take out the battery and look under it. Did the battery leak on the cables and computer underneath?

I hope not

If it did I recommend you consider trading the car.

If it did not, replace the battery and reconnect. Cross your fingers, it may have been a temporary glitch. Very likely there was nothing ever wrong with the window control module.

Good Luck
Reply
Old Oct 23, 2007 | 12:14 PM
  #10  
timemender's Avatar
timemender
Burning Brakes
 
Joined: Aug 2006
Posts: 1,217
Likes: 5
From: Stark County Ohio
Default

Did you check the wiring to both doors?

Check the individual pin connectors and check the grounds.

Start at the doors, battery & under the battery, then common grounds under the hood, followed by the connections on the modules in the passenger foot well.

See the sticky at the top of the C5 tech section.

Keep testing to see if the codes will run.
Reply
Old Oct 23, 2007 | 01:13 PM
  #11  
AC54ME's Avatar
AC54ME
Team Owner
Supporting Lifetime Gold
10 Year Member
 
Joined: Feb 2003
Posts: 37,329
Likes: 12
From: Plano Texas
CI 6-7-8-9 Veteran
CI-VI Car Show Winner
St. Jude Donor '07-'08-'09-'10-'11-'12-'13
Default

Originally Posted by 97CO
Before I Changed The Door Modual All Guages Were Crazy
Temp At 260
Oil At 0
Fuel At 0
The Pass Window Would Not Work

And The Dic Would Run Codes Every Once In A While

After Door Mod Was Changed All Guages Appear Fine
But The Dic Has No Comm.
Pass Door Works But Not From Drivers Side Only Pass Side Controls

Thanks, Chase
Damn

Ok - like posted above - remove the battery - check very CLOSELY under the tray and verify if there is battery residue. Also check the grounds (passenger and drivers side).

BTW - how old is the battery???????

If there is none - leave the battery disconnected for 15 minutes or so.

Reconnect and see if you can now see codes.

If you cannot - I strongly recommend that you post this in the Tech section - seeking more options.
Reply
Old Oct 23, 2007 | 02:18 PM
  #12  
Allzwell's Avatar
Allzwell
Safety Car
20 Year Member
St. Jude 15 Year Donor
All Eyes On Me
 
Joined: Oct 2003
Posts: 3,854
Likes: 8
From: Pearland, TX
Cruise-In VIII Veteran
St. Jude Donor '03 thru '20
Default

Originally Posted by 97CO
Before I Changed The Door Modual All Guages Were Crazy
Temp At 260
Oil At 0
Fuel At 0
The Pass Window Would Not Work

And The Dic Would Run Codes Every Once In A While

After Door Mod Was Changed All Guages Appear Fine
But The Dic Has No Comm.
Pass Door Works But Not From Drivers Side Only Pass Side Controls

Thanks, Chase

I had the same issue (gage readings were haywire and NO COMM) and it was the wire harnesses from the body to the pass. door.

Just like Bill Curlee recommended, I shook the accordian hose and the window started working again. I then removed teh accordian hose and found that the tubing over the bare wire had mover (shrunk) and created a short ... a little electrical tape and she's good to go.

I hope that this solves your issues as well.
Reply

Get notified of new replies

To Help!!! Dic Has No Comm.





All times are GMT -4. The time now is 03:58 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE