Programming Replacement Passlock™ Sensor, BCM, or VCM/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 VCM/PCM however, must learn the new fuel continue password
when the BCM is replaced. |
| • | If replacing a VCM/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 VCM/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:
10 Minute Re-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.
