Self-Diagnostic System

WARNING: This page is about a different car, the 2002 Lincoln Blackwood. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Power window system utilizes a self-diagnostic system which may store a Diagnostic Trouble Code (DTC) if a problem exists in the system. DTCs may be retrieved using New Generation STAR (NGS) tester when connected to Data Link Connector (DLC). For preliminary testing, see TROUBLE SHOOTING .

Connect New Generation Star (NGS) tester to Data Link Connector (DLC) located below center of instrument panel. Using NGS tester, perform data link diagnostic test. See DATA LINK DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM in MODULE COMMUNICATIONS NETWORK - BLACKWOOD article.

If NGS tester displays CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, diagnose module communication problem. See MODULE COMMUNICATIONS NETWORK - BLACKWOOD article. If NGS tester displays NO RESP/NOT EQUIP for Generic Electronic Module (GEM), perform TEST A: NO COMMUNICATION WITH GENERIC ELECTRONIC MODULE under SYSTEM TESTS.

If NGS tester displays SYSTEM PASSED, retrieve and record continuous DTCs. Erase continuous DTCs. Using NGS tester, perform GEM self-test. If GEM DTCs related to problem are retrieved, perform appropriate test. See GENERIC ELECTRONIC MODULE DIAGNOSTIC TROUBLE CODE TEST INDEX table. If no DTCs related to the problem are retrieved, perform appropriate test based on symptom. See SYMPTOM TEST INDEX table under SYSTEM TESTS. For GEM DTCs not covered in this article, see MODULE COMMUNICATIONS NETWORK - BLACKWOOD article.

GENERIC ELECTRONIC MODULE DIAGNOSTIC TROUBLE CODE TEST INDEX

DTC ⁽¹⁾

Description

Perform Test

B1302

Accessory Delay Relay Coil Circuit Failure

B1304

Accessory Delay Relay Coil Circuit Short To Power

B1342

ECU Defective

⁽²⁾

B1398

Driver's Door One-Touch Down Relay Coil Circuit Failure

B1400

Driver's Door One-Touch Down Relay Coil Circuit Short To Power

B1405

Driver's Door Power Window Down Circuit Short To Power

⁽¹⁾	Codes listed in this table are only for testing covered in this article. For complete DTC listing, see MODULE COMMUNICATIONS NETWORK - BLACKWOOD article.

⁽²⁾	Clear DTCs. Retrieve DTCs. If DTC B1342 retrieved again, replace Generic Electronic Module (GEM). See GENERIC ELECTRONIC MODULE under REMOVAL & INSTALLATION.