Self-Diagnostic System

Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Using NGS tester, perform data link diagnostics test. See DATA LINK DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM in MODULE COMMUNICATIONS NETWORK - WINDSTAR article. If NGS tester responds with CKT914, CKT915 or CKT70=ALL ECUS NO RESP/NOT EQUIP, repair module communications concern. See MODULE COMMUNICATIONS NETWORK - WINDSTAR article. If NGS tester displays NO RESP/NOT EQUIP for Rear Electronic Module (REM), perform TEST H: NO COMMUNICATION WITH REAR ELECTRONIC MODULE under SYSTEM TESTS. If NGS tester responds with SYSTEM PASSED, retrieve and record all stored continuous DTCs. Erase continuous DTCs. Using NGS tester, perform REM self-test. Perform appropriate test in accordance with DTC retrieved. See REAR ELECTRONIC MODULE DTC INDEX table. Codes listed in table are only for testing covered in this article. For complete DTC listing, see MODULE COMMUNICATIONS NETWORK - WINDSTAR article. If no DTCs are retrieved though REM self-test, repair by symptom. See SYMPTOM INDEX table under SYSTEM TESTS.

REAR ELECTRONIC MODULE DTC INDEX

DTC ⁽¹⁾

Description

Perform Test

B1342

ECU Defective

⁽²⁾

B2568

Reverse Mirror Output Circuit Short To Ground

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

⁽²⁾	Clear and document all DTCs. Perform REM self-test. If DTC B1342 is retrieved again, replace Rear Electronic Module (REM).