Self-Diagnostic System

Connect New Generation Star (NGS) tester to Data Link Connector (DLC), located beneath instrument panel. Using NGS tester, perform data link diagnostics test. See DATA LINK DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM in MODULE COMMUNICATIONS NETWORK - CONTOUR & MYSTIQUE article. If NGS tester responds with CKT914, CKT915 or CKT70=ALL ECUS NO RESP/NOT EQUIP, repair module communications concern. See MODULE COMMUNICATIONS NETWORK - CONTOUR & MYSTIQUE article. If NGS tester displays NO RESP/NOT EQUIP for Powertrain Control Module (PCM), repair powertrain concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

If NGS tester responds with SYSTEM PASSED, retrieve and record continuous DTCs. Erase continuous DTCs. Using NGS tester, perform PCM self-test. Perform appropriate test in accordance with DTC retrieved. See PCM DTC INDEX table. Codes listed in this table are only for testing covered in this article. For complete DTC listing, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If no DTCs are retrieved, repair by symptom. See SYMPTOM INDEX table under SYSTEM TESTS.

PCM DTC INDEX

DTC ⁽¹⁾

Description

Perform Test

B1213

Anti-Theft Number Of Programmed Keys Is Below Minimum

⁽²⁾F

B1600

No Key Code Received/Damaged Encoded Ignition Key Or Use Of Non-PATS Key

B1601

Incorrect Key Code From Ignition Key Transponder

B1602

Invalid Key Code Format From Ignition Key Transponder

B1681

Transceiver Defective Or Not Connected

B2103

PATS Antenna Not Connected

⁽¹⁾	For a listing of all "P" code, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

⁽²⁾	If DTCs B1213, B1600, B1601, B1602 OR B1681 are also present, service these DTCs first then recheck codes.