Sunfire L4-2.2L VIN F (2002)
Alarm Module: Service and Repair
REPLACING KEYS
The ignition lock cylinder and keys do not contain any coded electronic components. The lock cylinder housing contains the coded electronic
components. Changing an ignition lock cylinder or replacing a key is a purely mechanical process which does not affect the vehicle theft deterrent
system. To replace an existing key, simply cut a new key to match the existing one. If no keys are available, the lock cylinder must be changed. To
change the lock cylinder, simply replace the existing lock cylinder with one of the same type.
ADDING KEYS
The ignition lock cylinder and keys do not contain any coded electronic components. The lock cylinder housing contains the coded electronic
components. Changing an ignition lock cylinder or adding a key is a purely mechanical process which does not affect the vehicle theft deterrent
system. To add a key, simply cut a new key to match the existing one. To change the lock cylinder, simply replace the existing lock cylinder with one
of the same type.
PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS
IMPORTANT: Due to component variability, the vehicle theft deterrent (VTD) system must have the learn procedure performed regardless, if the
vehicle starts on the first ignition cycle after a VTD repair.
All codes in the theft deterrent module must be cleared for a relearn.
IMPORTANT:
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The body control module (BCM) must be programmed with the proper RPO configurations before performing learn procedures. Refer to BCM
Programming/RPO Configuration in Body Control System.
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If replacing the BCM with a GM Service Parts Operations (SPO) replacement part, the module will learn PASSLOCK(TM) sensor data code
immediately. The existing PCM however, must learn the new fuel continue password when the BCM is replaced.
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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 these procedures after replacing:
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Passlock(TM) Sensor
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BCM
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PCM
10 Minute Learn Procedure
TOOLS REQUIRED
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Tech 2
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Techline terminal with current Service Programming System (SPS) software
1. Connect the Tech 2 to the vehicle.
2. Select "Request Information" under "Service Programming".
3. Disconnect the Tech 2 from the vehicle and connect it to a Techline terminal.
4. On the Techline terminal, select "Theft Module Re-Learn" under "Service Programming".
5. Disconnect the Tech 2 from the Techline terminal and connect it to the vehicle.
6. Turn ON the ignition, with the engine OFF.
7. Select "VTD Re-Learn" under "Service Programming".
8. Attempt to start the engine, then release the key to ON. The vehicle will not start.
9. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF. The vehicle is now ready to relearn the
PASSLOCK(TM) Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK.
10. Turn OFF the ignition, and wait 5 seconds.
11. Start the engine. The vehicle has now learned the password.
12. With the Tech 2 scan tool, clear any DTCs.
30 Minute Learn Procedure
TOOLS REQUIRED
None
1. Turn ON the ignition, with the engine OFF.
2. Attempt to start the engine, then release the key to ON. The vehicle will not start.
3. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
4. Turn OFF the ignition, and wait 5 seconds.
