Programming Replacement Passlock™ Sensor, BCM, or PCM
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 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 any of the following:
Learn Procedures
There are two available methods to perform the programming procedure:
• | A 10 minutes procedure which requires a Tech 2 and a techline
terminal. |
• | A 30 minutes procedure which does not require the use of any tools. |
10 Minute Learn Procedure
Tools Required
• | Techline terminal with current SPS (Service Programming System)
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).