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Eric
Eric, Automotive Repair Shop Manager
Category: Chevy
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Experience:  20+ yrs. experience as repair shop manager and technician.
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Changed the computer on an 2002 Lb7 DURAMAX DIESEL .. How do

Customer Question

Changed the computer on an 2002 Lb7 DURAMAX DIESEL .. How do I marry the computer to the truck so it will start ..
Submitted: 4 months ago.
Category: Chevy
Expert:  Eric replied 4 months ago.

HI,

If it was not programmed with the vehicle's vin and mileage, this needs to be done, which REQUIRES a TECH2 scan tool- there is NO workaround for this. And then do the 30 minute security relearn procedure

If it was programmed, then you just need to do the 30 minute security relearn procedure

30minute GM relearn procedure:

1-TurnON the ignition,with the engine OFF.

2-Attemptto start the engine,then release the key to ON (vehicle will not start).

3-Observe the SECURITY telltale(this is the security light), after approximately 10minutes the telltale will turn OFF.

4-Turn OFF the ignition, and wait 5 seconds .

5-Repeat steps 1through 4 two more times for a total of 3 cycles/30 minutes(the vehicle is now ready to relearn the Passlock(TM) Sensor DataCode and/or passwords on the next ignition switch transition from OFF to CRANK). IMPORTANT: The vehicle learns the Passlock(TM)Sensor Data Code and/or password ***** the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

6-Start the engine(the vehicle has now learned the Passlock(TM) Sensor Data Code and/or password).

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Expert:  Eric replied 4 months ago.

I noticed we have not yet resolved your concern you asked about. I would sure appreciate it if you would reply so I can offer my skills and knowledge and repair guide access to help as best I can.

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Please remember to rate service using the rating page so that I may receive credit. Thanks

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Expert:  Eric replied 4 months ago.

I noticed we have not yet resolved your concern you asked about. I would sure appreciate it if you would reply so I can offer my skills and knowledge and repair guide access to help as best I can.

~Do you still need more help?
~Confused by my info request or answer?
~Need more time?
~Confused on how the site works?
~Need more detail or a different explanation?

If the answer is YES to any of these just press reply and lets work on this concern some more.

If you have new questions now or in the future please do not hesitate to ask them. If you would like me to assist you. Just bookmark this page so you can access my profile easy and post a new question from the question box on my profile page.

Please remember to rate service using the rating page so that I may receive credit. Thanks

Please note that if you have a subscription service, you still are required to rate service, however you are not charged again. This is just so that your expert is credited for their time and services. Thank you.

Expert:  Eric replied 4 months ago.

I noticed we have not yet resolved your concern you asked about. I would sure appreciate it if you would reply so I can offer my skills and knowledge and repair guide access to help as best I can.

~Do you still need more help?
~Confused by my info request or answer?
~Need more time?
~Confused on how the site works?
~Need more detail or a different explanation?

If the answer is YES to any of these just press reply and lets work on this concern some more.

If you have new questions now or in the future please do not hesitate to ask them. If you would like me to assist you. Just bookmark this page so you can access my profile easy and post a new question from the question box on my profile page.

Please remember to rate service using the rating page so that I may receive credit. Thanks

Please note that if you have a subscription service, you still are required to rate service, however you are not charged again. This is just so that your expert is credited for their time and services. Thank you.

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