Important: When replacing a theft deterrent control module with a GM SPO Replacement Part, the theft deterrent control module will learn the keys immediately. The powertrain control module (PCM) uses a common fuel enable signal which is received from the theft deterrent control module. Therefore, the 10-minute relearn procedure or the 30-minute relearn procedure is not required.
Important:
• When replacing a theft deterrent control module with a GM Service Parts Operation (SPO) Replacement Part, set up the control module prior to the 10-minute relearn procedure or the 30-minute relearn procedure has been performed. • When replacing a theft deterrent control module with a GM SPO Replacement Part, the theft deterrent control module will learn the keys immediately. The powertrain control module (PCM) uses a common fuel enable signal which is received from the theft
deterrent control module. Therefore, the 10-minute relearn procedure or the 30-minute relearn procedure is not required. • When replacing a PCM with a GM SPO Replacement Part, the new PCM will learn the incoming fuel enable signal immediately upon receipt. • When performing either relearn procedure, all previously learned keys will be erased from the theft deterrent control module's memory. • Use only a master PK3 key when performing the first relearn procedure. If you use a valet key first, the theft deterrent control module will not allow additional keys to be learned.
Tools Required
| • | Scan tool |
| • | Techline Terminal with current Service Programing System (SPS) software |
10-Minute Relearn Procedure
- Connect a scan tool to the vehicle.
- Turn ON the ignition, with the engine OFF.
- Insure that all power consuming devices are turned OFF on the vehicle.
- With a scan tool, select Request Info. under Service Programming System and follow the scan tool on-screen instructions.
- Disconnect the scan tool from the vehicle and connect the scan tool to a Techline Terminal with the current Service Programming System (SPS) software.
- On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions.
- Disconnect the scan tool from the Techline Terminal and re-connect the scan tool to the vehicle.
- With a master passkey III key, turn ON the ignition with the engine OFF.
- With a scan tool, select Program ECU under Service Programming System.
- At this point the scan tool must remain connected for the duration of the 10-minute relearn procedure.
- Observe the scan tool, after approximately 10 minutes the scan tool will display "Programming Successful, Turn OFF Ignition". The vehicle is now ready to relearn the key information on the next ignition switch transition from OFF to CRANK.
- Turn OFF the ignition and wait 5 seconds.
- With a master PK3 key, start the vehicle. The theft deterrent control module has now learned the key transponder information.
- Turn OFF the ignition and wait 15 seconds minimum.
- With a second master passkey III key, start the vehicle. The theft deterrent control module has now learned the second master Passkey III key transponder information
- When additional keys are required to be learned, refer to Adding Keys .
- With a scan tool, clear any DTCs.
Important: On some vehicles the SECURITY telltale maybe illuminated on steady for the duration of the 10-minute relearn procedure.
Important: Perform this step ONLY on vehicles with EXPORT configured theft deterrent control modules.
Important: Perform this step ONLY on vehicles with EXPORT configured theft deterrent control modules.
30-Minute Relearn Procedure
Use this procedure if replacing the following component:
The passkey III (PK3) keys
Important:
• This procedure is not available on vehicles equipped with option code BAE. • If replacing a theft deterrent control module with a GM SPO Replacement Part, perform the procedure to setup a new theft deterrent control module prior to the 30-minute relearn procedure.
- With a master passkey III key, turn ON the ignition, with the engine OFF.
- Observe the Security telltale, after approximately 10 minutes the telltale will turn off.
- Turn OFF the ignition, and wait 5 seconds.
- Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.
- With a master passkey III key, start the vehicle. The vehicle has now learned the key transponder information and the PCM has now learned the fuel continue password.
- When additional keys are required to be learned, refer to Adding Keys .
- With a scan tool, clear any DTCs.
Important: The vehicle theft deterrent (VTD) system learns the key transponder information on the ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
