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 previousely
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:
Tools Required
| • | Techline terminal with current SPS (Service Programming System)
software |
10 Minute Re-Learn Procedure
- 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.
