Cavalier, Sunfire 2001-2005

Ignition Lock Cylinder

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Passlock Learn Procedure




NOTE
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.


NOTE
All codes in the theft deterrent module must be cleared for a relearn.


NOTE
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.


NOTE
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.


NOTE
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.

Use these procedures after replacing:



Passlock Sensor
 
BCM
 
PCM
 

10-Minute Learn Procedure
  1. Connect the Tech 2® scan tool to the vehicle.
  2.  
  3. Select "Request Information" under "Service Programming".
  4.  
  5. Disconnect the Tech 2® scan tool from the vehicle and connect it to a Techline terminal.
  6.  
  7. On the Techline terminal, select "Theft Module Re-Learn" under "Service Programming".
  8.  
  9. Disconnect the Tech 2® scan tool from the Techline terminal and connect it to the vehicle.
  10.  
  11. Turn ON the ignition, with the engine OFF .
  12.  
  13. Select "VTD Re-Learn" under "Service Programming".
  14.  
  15. Attempt to start the engine, then release the key to ON . The vehicle will not start.
  16.  
  17. 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 .
  18.  
  19. Turn OFF the ignition, and wait 5 seconds.
  20.  
  21. Start the engine. The vehicle has now learned the password.
  22.  
  23. With the Tech 2® scan tool scan tool, clear any DTCs.
  24.  

30-Minute Learn Procedure
  1. Turn ON the ignition, with the engine OFF .
  2.  
  3. Attempt to start the engine, then release the key to ON . The vehicle will not start.
  4.  
  5. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF .
  6.  
  7. Turn OFF the ignition, and wait 5 seconds.
  8.  
  9. 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 .
    NOTE
    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.

  10.  
  11. Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password.
  12.  
  13. With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles.
  14.  

Removal & Installation



With Key

CAUTION
Before servicing any electrical component, the ignition key must be in the OFF or LOCK position and all electrical loads must be OFF , unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
    CAUTION
    This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:



    Air bag deployment
     
    Personal injury
     
    Unnecessary SIR system repairs
     

  2.  
  3. In order to avoid the above conditions, observe the following guidelines:

    Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.
     
    If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System in SIR.
     

  4.  
  5. Disable the supplemental inflatable restraint (SIR) system, as outlined in the Chassis Electrical Section.
  6.  
  7. Remove the steering column trim covers.
  8.  
  9. Turn the ignition lock cylinder to the RUN position.
  10.  
  11. Push the locking button on the rear of the housing assembly.
  12.  
  13. Remove the ignition lock cylinder by pulling outward from the steering column.
  14.  
  15. Disconnect the electrical connector from the ignition lock cylinder.
  16.  

To install:

  1. Connect the electrical connector to the ignition lock cylinder.
  2.  
  3. Insert the ignition lock cylinder into the housing assembly while rotating the key approximately 5 degrees counter - clockwise.
  4.  
  5. Install the steering column trim covers.
  6.  
  7. Enable the SIR system, as outlined in the Chassis Electrical Section.
  8.  
  9. Connect the negative battery cable.
  10.  
  11. Perform the Passlock Learn Procedure.
  12.  

Without Key

CAUTION
Before servicing any electrical component, the ignition key must be in the OFF or LOCK position and all electrical loads must be OFF , unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
    CAUTION
    This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:



    Air bag deployment
     
    Personal injury
     
    Unnecessary SIR system repairs
     

  2.  
  3. In order to avoid the above conditions, observe the following guidelines:

    Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.
     
    If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System in SIR.
     

  4.  
  5. Disable the supplemental inflatable restraint (SIR) system, as outlined in the Chassis Electrical Section.
  6.  
  7. Remove the steering column trim covers.
  8.  
  9. Drill out the locking button on the rear of the housing assembly using an angle drill.
  10.  
  11. Remove the ignition lock cylinder by pulling outward from the steering column.
  12.  
  13. Disconnect the electrical connector from the ignition lock cylinder.
  14.  
  15. Remove the metal shavings from the steering column and ignition lock housing assembly.
  16.  

To install:


NOTE
Ensure that all the metal shavings are cleaned from the steering column and ignition housing assembly.

  1. Connect the electrical connector to the ignition lock cylinder.
  2.  
  3. Insert the ignition lock cylinder into the housing assembly while rotating the key approximately 5 degrees counter-clockwise.
  4.  
  5. Install the steering column trim covers..
  6.  
  7. Enable the SIR system, as outlined in the Chassis Electrical Section.
  8.  
  9. Connect the negative battery cable.
  10.  
  11. Perform the Passlock Learn Procedure.
  12.  

 
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