Programming Replacement Passlock™ Sensor, BCM, or PCM
Important:
• | The body control module (BCM) must be programmed with the proper regular
production operation (RPO) configurations before performing learn procedures. See
Body Control Module Programming and Setup
in
Programming and Setup. |
• | If replacing the BCM with a GM Service Parts Operations (SPO) replacement
part, the module will learn Passlock™ sensor data code immediately. The existing
powertrain control module (PCM) however, must learn the new fuel continue password
when the BCM is replaced. |
• | If replacing a PCM with a GM 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:
Learn Procedures
There are 2 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 1-4 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.