Service column lock displayed
Thread Starter
Cruising
Joined: Sep 2007
Posts: 10
Likes: 0
From: CARY NORTH CAROLINA
Service column lock displayed
Help!! Service column lock displayed on my 2000 vette installed lock simulator bypass,steering wheel lock doesnt engage,engine cuts off right after it goes in gear??? Help!!!
Drifting
Joined: Jul 1999
Posts: 1,940
Likes: 0
From: Lancaster County Pennsylvania
Go get a coffee and big bag of cookies and read all about the service cloumn lock. Here is the link. As my signature says, Column Lock Bypass PRICELESS
Just noticed, did you install the bypass after it locked?
http://forums.corvetteforum.com/c5-t...ky-please.html
Just noticed, did you install the bypass after it locked?
http://forums.corvetteforum.com/c5-t...ky-please.html
Last edited by 2CRUZIN; Feb 27, 2010 at 09:54 AM. Reason: spel
Race Director
Joined: Aug 2003
Posts: 13,421
Likes: 8
From: Lake Mary Florida
To start with:
The ability to view engine operating data such as oil pressure and coolant temperature, in digital form on the instrument panel has been a feature of Corvettes since 1984. Starting in 1992, the instrument panel could display limited diagnostic data relating to the car's on-board computer systems.
The C5's capacity to display diagnostic codes is significantly expanded. The new Corvette has 11 "Computer Modules" that transmit diagnostics:
Powertrain Control Module (PCM)
Traction Control System (TCS), which combines traction control, ABS and, on cars built after 1997, the optional Active Handling System
Real Time Damping (RTD)
Body Control Module (BCM)
Instrument Panel Cluster (IPC)
Radio
Heating-ventilation-air conditioning (HVAC)
Left Door Control Module (LDCM)
Right Door Control Module (RDCM)
Seat Control Module (SCM)
Remote Function Actuation (RFA).
The Instrument Panel Cluster display, the 20-character fluorescent screen above the steering column that says "Corvette by Chevrolet" every time you start the car, is an important device. Its primary function is to display warning and status messages from the various modules. For cars built before 12/15/97, there are 48 of these warning/status messages. A few additional messages come from cars built after that date and equipped with the Active Handling option. A list of the warning/status messages can be found in your Owner's Manual or in the Service Manual for your model year.
The display can show powertrain operating information and tire pressures by simply pressing different buttons on the Driver Information Center (DIC) to the right of the instrument panel. In addition, using the "options" button, you can configure the C5's keyless entry and security systems. Use of the display and buttons for these purposes is discussed in your Owner's Manual
Do-It-Yourself owners will be most interested in the display of diagnostic trouble codes for all modules that transmit them. The "Diagnostic Display Mode" is entered with the following procedure:
1) Turn on the ignition but don't start the engine.
2) Press the "RESET" button to turn off any warning messages
3) Press and hold "OPTIONS"
4) While holding "OPTIONS", press "FUEL" four times within a 10-second period.
Initially, on-board diagnostics go into an "Automatic Mode" which shows diagnostic codes in a pre-set sequence: PCM - TCS - RTD - BCM - IPC - RADIO - HVAC - LDCM - RDCM - SCM - RFA. All codes will be displayed for each module. If none are present in a given module, you will see "No More Codes" on the display.
There are two kinds of diagnostic codes, "Current" and "History", designated with a letter suffix, "C" or "H". A current code indicates a malfunction is present in the module displaying data. A history code indicates a problem existed sometime in the last 40 or 50 ignition cycles. When not accompanied by a current code of the same number, it's potential evidence of a previous problem, now resolved, that was not removed by clearing the codes. More likely it's an indication of an intermittent malfunction.
Intermittent codes are the most challenging of the diagnostics. An intermittent code may have happened once, may have happened more than once but is inconsistent or may be happening on a regular basis but not at the time the codes are displayed. History codes can also be caused by a current malfunction in a system that is not operating at the time codes are displayed. An example is the rear window defogger which doesn't operate until the Body Control Module detects engine rpm. For history codes set by a module that does not operate with the key on and engine off, a special diagnostic tool called a "Scan Tester" is necessary to properly diagnose the malfunction.
Once the system has displayed all modules, it goes into the manual mode which allows selection of each module using combinations of Driver Information Center buttons. Manual mode can also be entered during the automatic sequence by pressing any button except "E/M". Once the display shows "Manual Diagnostics", select a module by pressing the "OPTIONS" button to go forward or the "TRIP" button to go back. Once a module is selected, a code is displayed, and if more than one are present; press "GAGES" to go forward or "FUEL" to go back.
To exit the diagnostic mode at any time, press "E/M". If you want to erase codes in a given module, press "RESET".
To reset the codes once in manual mode, press and hold "RESET" until it displays "NO CODES". Press "OPTIONS" to go to the next module. Repeat the steps until you have reset the codes in all the computer modules. NOTE!! Only reset the codes IF you want to - it is NOT necessary to do this. Clearing a code does not repair a problem. You are simply erasing the evidence of it in the module's memory.
The ability to view engine operating data such as oil pressure and coolant temperature, in digital form on the instrument panel has been a feature of Corvettes since 1984. Starting in 1992, the instrument panel could display limited diagnostic data relating to the car's on-board computer systems.
The C5's capacity to display diagnostic codes is significantly expanded. The new Corvette has 11 "Computer Modules" that transmit diagnostics:
Powertrain Control Module (PCM)
Traction Control System (TCS), which combines traction control, ABS and, on cars built after 1997, the optional Active Handling System
Real Time Damping (RTD)
Body Control Module (BCM)
Instrument Panel Cluster (IPC)
Radio
Heating-ventilation-air conditioning (HVAC)
Left Door Control Module (LDCM)
Right Door Control Module (RDCM)
Seat Control Module (SCM)
Remote Function Actuation (RFA).
The Instrument Panel Cluster display, the 20-character fluorescent screen above the steering column that says "Corvette by Chevrolet" every time you start the car, is an important device. Its primary function is to display warning and status messages from the various modules. For cars built before 12/15/97, there are 48 of these warning/status messages. A few additional messages come from cars built after that date and equipped with the Active Handling option. A list of the warning/status messages can be found in your Owner's Manual or in the Service Manual for your model year.
The display can show powertrain operating information and tire pressures by simply pressing different buttons on the Driver Information Center (DIC) to the right of the instrument panel. In addition, using the "options" button, you can configure the C5's keyless entry and security systems. Use of the display and buttons for these purposes is discussed in your Owner's Manual
Do-It-Yourself owners will be most interested in the display of diagnostic trouble codes for all modules that transmit them. The "Diagnostic Display Mode" is entered with the following procedure:
1) Turn on the ignition but don't start the engine.
2) Press the "RESET" button to turn off any warning messages
3) Press and hold "OPTIONS"
4) While holding "OPTIONS", press "FUEL" four times within a 10-second period.
Initially, on-board diagnostics go into an "Automatic Mode" which shows diagnostic codes in a pre-set sequence: PCM - TCS - RTD - BCM - IPC - RADIO - HVAC - LDCM - RDCM - SCM - RFA. All codes will be displayed for each module. If none are present in a given module, you will see "No More Codes" on the display.
There are two kinds of diagnostic codes, "Current" and "History", designated with a letter suffix, "C" or "H". A current code indicates a malfunction is present in the module displaying data. A history code indicates a problem existed sometime in the last 40 or 50 ignition cycles. When not accompanied by a current code of the same number, it's potential evidence of a previous problem, now resolved, that was not removed by clearing the codes. More likely it's an indication of an intermittent malfunction.
Intermittent codes are the most challenging of the diagnostics. An intermittent code may have happened once, may have happened more than once but is inconsistent or may be happening on a regular basis but not at the time the codes are displayed. History codes can also be caused by a current malfunction in a system that is not operating at the time codes are displayed. An example is the rear window defogger which doesn't operate until the Body Control Module detects engine rpm. For history codes set by a module that does not operate with the key on and engine off, a special diagnostic tool called a "Scan Tester" is necessary to properly diagnose the malfunction.
Once the system has displayed all modules, it goes into the manual mode which allows selection of each module using combinations of Driver Information Center buttons. Manual mode can also be entered during the automatic sequence by pressing any button except "E/M". Once the display shows "Manual Diagnostics", select a module by pressing the "OPTIONS" button to go forward or the "TRIP" button to go back. Once a module is selected, a code is displayed, and if more than one are present; press "GAGES" to go forward or "FUEL" to go back.
To exit the diagnostic mode at any time, press "E/M". If you want to erase codes in a given module, press "RESET".
To reset the codes once in manual mode, press and hold "RESET" until it displays "NO CODES". Press "OPTIONS" to go to the next module. Repeat the steps until you have reset the codes in all the computer modules. NOTE!! Only reset the codes IF you want to - it is NOT necessary to do this. Clearing a code does not repair a problem. You are simply erasing the evidence of it in the module's memory.
Race Director
Joined: Aug 2003
Posts: 13,421
Likes: 8
From: Lake Mary Florida
I see you installed one, review the instructions below in the link.
Go to this link for illustrated instructions to install.
http://www.ls1howto.com/index.php?article=24
Did you follow the procedures to pull the fuse?
Did you verify if the GM harness was installed? If so did you remove it?
Sounds like you have had the PCM flashed which is phase B of the recall which
adds the fuel cutoff when a Service Column Lock DTC sets.
Go to this link for illustrated instructions to install.
http://www.ls1howto.com/index.php?article=24
Did you follow the procedures to pull the fuse?
Did you verify if the GM harness was installed? If so did you remove it?
Sounds like you have had the PCM flashed which is phase B of the recall which
adds the fuel cutoff when a Service Column Lock DTC sets.
Last edited by Jet-Jock; Feb 27, 2010 at 11:06 AM.
Race Director
Joined: Mar 2001
Posts: 11,405
Likes: 26
From: Whippany NJ
CI 6-7-8-9 Veteran
St. Jude Donor '08-'09
NCM Sinkhole Donor
Send PCM to ECS and they will fix it. Might as well get a nice performance tune while your at it. 
http://forums.corvetteforum.com/c5-s...nly-149-a.html
Contact ECS and explain the situation. The only drawback is that you will still get CL messages each time you start the car and youll have to press reset to clear it.
http://forums.corvetteforum.com/c5-s...nly-149-a.html
Contact ECS and explain the situation. The only drawback is that you will still get CL messages each time you start the car and youll have to press reset to clear it.
