Passive Anti-Theft Alarm System (Pats)

NOTE: The PATS module must be reconfigured after replacement. Refer to the PATS Configuration Command Index. For additional reprogramming assistance, review the help screen on the New Generation STAR (NGS) Tester configuration card.
1. Verify the customer concern by duplicating the condition.
2. Inspect to determine if one of the following mechanical or electrical concerns apply:

VISUAL INSPECTION CHART

Mechanical
^ Damaged ignition lock cylinder
^ Damaged encoded ignition key
^ A non-encoded ignition key being used
^ A non-programmed encoded ignition key.

Electrical
^ Open fuses: Fuse junction panel
^ Fuse 16 (20A), Fuse 18 (20A)
^ Inoperative transceiver module
^ Loose connections
^ Corroded connections
^ Damaged ignition switch

3. If inspection reveals an obvious concern that can be readily repaired, correct the concern before continuing with Inspection and Verification.
4. If the concern remains after the inspection, connect the New Generation STAR (NGS) Tester to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the NGS menu. If the NGS does not communicate with the vehicle:
^ check that the program card is properly installed.
^ check the connections to the vehicle.
^ check the ignition switch position.
5. If the NGS still does not communicate with the vehicle, refer to the New Generation STAR Tester manual.
6. Perform the DATA LINK DIAGNOSTIC TEST. If the NGS responds with:
^ CKT914, CKT915 or CKT7O = ALL ECUS NO RESP/NOT EQUIP. Review information found in Information Bus.
^ NO RESP/NOT EQUIP for PATS module, go to Pinpoint Test A. A: No Communication With Passive Anti-Theft System Module
^ SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and perform self-test diagnostics for the PATS module.
7. If the DTCs retrieved are related to the concern, go to PATS Diagnostic Trouble Code (DTC) Index to continue diagnostics.
8. If no DTCs related to the concern are retrieved, Passive Anti-Theft Alarm System (Pats) to continue diagnostics.

Rotunda SBDS� 418-F001 (001-00001) may also be used to diagnose this system.