Ignition switch

Hi,

Here are the directions for replacing the lock cylinder. The attached pics correlate with the directions. Also, you will need to complete the reset procedure at the end, otherwise the system will lock down.

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1999 Chevrolet Cavalier L4-2.2L VIN 4
Ignition Lock Cylinder - With Key
Vehicle Steering and Suspension Steering Steering Column Service and Repair Removal and Replacement Ignition Lock Cylinder - With Key
IGNITION LOCK CYLINDER - WITH KEY
This article has been updated with bulletin, 01-02-35-010

REVISED LOCK CYLINDER REPLACEMENT

REMOVAL PROCEDURE

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.
2. Disable the supplemental inflatable restraints (SIR) system. Refer to Disabling the SIR System in Air Bags and Seat Belts.
3. Remove the steering column shrouds. Refer to Steering Column Trim Cover Replacement - On Vehicle.

Pic 1

4. Turn the ignition lock cylinder (1) to the RUN position.

Pic 2

5. Push the locking button (2) on the rear of the housing assembly (1).
6. Remove the ignition lock cylinder by pulling outward from the steering column.

Pic 3

7. Disconnect the electrical connector (3) from the ignition lock cylinder (1).

INSTALLATION PROCEDURE

pic 4

1. Connect the electrical connector (3) to the ignition lock cylinder (1).

Pic 5

2. Insert the ignition lock cylinder into the housing assembly (1) while rotating the key approximately 5 degrees counter - clockwise.
3. Install the steering column shrouds. Refer to Steering Column Trim Cover Replacement - On Vehicle.
4. Enable the SIR system. Refer to Enabling the SIR System in Air Bags and Seat Belts.
5. Connect the negative battery cable.

IMPORTANT: Due to component variability, the vehicle theft deterrent (VTD) system must have the learn procedure performed regardless, even 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.

If you replace the ignition lock cylinder, the system will enter the long tamper mode. If the system enters the long tamper mode, ensure that the system completes a long tamper mode cycle. During the long tamper mode cycle, the THEFT indicator will flash for the full 10 minutes. The instrument cluster and the PCM require the full 10 minutes in order to complete the learn cycle. Ensure that the ignition switch remains in RUN until the indicator stops flashing. If you turn the ignition switch before the indicator stops flashing, ensure that you repeat the long tamper cycle from the beginning.

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Let me know if this helps.

Joe

That would be because the PATS system is activating due to the sensor in the key cylinder housing not operating. There is no reset for that other than to replace the damaged housing in the column and install the key cylinder then reset the system with a scan tool and relearn the new sensor.