Important:
• | If replacing the BCM with a GM Service Parts Operations (SPO) replacement
part, the module will learn Passlock™ sensor data code immediately. The existing
PCM however, must learn the new fuel continue password when the BCM is replaced. |
• | If replacing a PCM with a GM Service Parts Operations (SPO) replacement
part, after programming, these modules will learn the incoming fuel continue password
immediately upon receipt of a password message. Once a password message is received,
and a password is learned, a learn procedure must be performed to change this password
again. A powertrain control module (PCM) which has been previously installed in another
vehicle will have learned the other vehicle's fuel continue password and will require
a learn procedure after programming to learn the current vehicle's password. |
Conditions
Use this procedure after replacing:
Learn Procedures
There are two available methods to perform the programming procedure:
• | A 10 minute procedure which requires a Tech 2 and a techline
terminal. |
• | A 30 minute procedure which does not require the use of any tools. |
10 Minute Learn Procedure
Tools Required
• | Techline terminal with current Service Programming System (SPS) software |
- Connect the Tech 2 to the vehicle.
- Select "Request Information" under "Service Programming".
- Disconnect the Tech 2 from the vehicle and connect it to a techline
terminal.
- On the techline terminal, select "Theft Module Re-Learn"
under "Service Programming".
- Disconnect the Tech 2 from the techline terminal and connect it
to the vehicle.
- Turn ON the ignition, with the engine OFF.
- Select "VTD Re-Learn" under "Service Programming".
- Attempt to start the engine, then release the key to ON, vehicle will
not start.
- Observe the SECURITY telltale, after approximately 10 minutes
the telltale will turn OFF, the vehicle is now ready to relearn the Passlock™
sensor data code and/or password on the next ignition switch transition from OFF
to CRANK.
- Turn OFF the ignition, and wait 5 seconds.
- Start the engine, the vehicle has now learned the password.
- With the Tech 2 scan tool, clear any DTCs.
30 Minute Learn Procedure
- Turn ON the ignition, with the engine OFF.
- Attempt to start the engine, then release the key to ON, vehicle will
not start.
- Observe the SECURITY telltale, after approximately 10 minutes the telltale
will turn OFF.
- Turn OFF the ignition, and wait 5 seconds.
- Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes,
the vehicle is now ready to relearn the Passlock™ sensor data code and/or passwords
on the next ignition switch transition from OFF to CRANK.
Important: The vehicle learns the Passlock™ sensor data code and/or password on the
next ignition switch transition from OFF to CRANK. You must turn the ignition OFF
before attempting to start the vehicle.
- Start the engine, the vehicle has now learned the Passlock™ sensor data
code and/or password.
- With a scan tool, clear any DTCs if needed, history DTCs will self clear
after 100 ignition cycles.