I recently had the engine removed and rebuilt due to it being hydrolocked. The rebuilder can't finalize the job because when he goes to start it he gets a theft mode message.
I'm going out tomorrow morning to take a look but in the mean time I wanted to know if someone could shed some light on what's going on, like a reset or a fuse?

Also he's not getting anything from the fuel pump. Could there be a connection?

Thank you,

Rock

 

Look at this thread and it should answer your question:

https://www.corvetteforum.com/forums...tem-to-me.html

Starting at post #2 give a detailed definition of theft mode.

Good luck with your repair.

 

A Tech II or EFILive can do a VAT relink.

 

READ AND PULL the Diagnostic Trouble Codes (DTCs) That will tell us exactly what is wrong and point you in the correct repair direction.

Sounds like you have a VATS issue. YES!! That will cause fuel pump disable!!

READING YOUR Engine Diagnostic Codes


The Diagnostic Display Mode is entered with the following procedure:

1) Turn on the ignition but don't start the engine. NOTE! You can read the DTCs with the engine running and or driving down the road but it can distract you. BE careful! Some DTCs clear themselves when you turn the ignition OFF!

2) Press the RESET button to turn off any warning messages. (i.e. door open, trunk open ect)
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. ( i.e. PCM = 4 codes) 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 C code indicates a malfunction is present and active 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 English/Metric (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 and hold the RESET button 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. If you clear the code/s, and extinguish the Check Engine Light, your emissions status ready will NOT allow you to pass an emissions test until you have completed the required driving cycles.
Once you have the codes, the next question is: What to do with the information?
First, consult the factory service manual. Any serious C5 Do-It-Yourself owner should invest in the Corvette Service Manual of the appropriate model year. The Service Manual is really a requirement if you want to understand and work on your C5. You can GOOGLE the DTC and also find information on it.




Here is very good site that explains the DTCs:


http://www.corvette-web-central.com/C5DTCcode.html


http://www.obd-codes.com/trouble_cod...d-ii-codes.php



Make sure to include the H or C suffix!!

 

Thanks for all of the replies.

I went out to the shop and the first thing I checked was the fuse box. The #13 fuel pump fuse (20 amp) was missing. That took care of not getting fuel to the engine.

I checked the battery & battery charger and it was good.

I than checked for codes and all were history except one.
PCM P1631 C H. Theft Deterrent System Password Incorrect. I looked it up in my GM SM and found the relearn procedure. 11m on 30s off x 3.

I knew I was good when the security light went out. It started right up. I should have my car back by the end of the week.

Thanks again,

Rock

 

I got my car back. It runs good.

Of course I'm taking it easy for the first few hundred miles.

I was able to clear all the codes except one.

The code is TCS C1288 C H. Steering Sensor Circuit Malfunction.

My Active Handling is disabled.

Is it something simple I could take care of or should I just take it back to the builder?

Thanks

Rock

 

YES!!!! They didnt do the job properly. The SWPS is out of alignment (not properly zeroed when the steering was reassembled to the rack.

 

Thanks 8VETTE7 & Bill for your replies.

I'm going out to the builder later this week for my 200 miles oil change.

I have four codes for him to look at.

PCM 0332 Knock Sensor.

TCS 1283 Excessive time to center steering.

TCS 1288 Steering sensor circuit malfunction.

BCM 2721 Pass-Key detection circuit.