Self-Diagnostic System

NOTE: Tests included in this article are written specifically for Worldwide Diagnostic System (WDS) tester or New Generation Star (NGS) tester functionality. Other OBD II-compatible scan tools may be used, but may not be equipped with equal test function capabilities. Refer to scan tool manufacturer's instructions.

NOTE: Before checking for any communication concern, inspect Data Link Connector (DLC) for loose, damaged or corroded terminals. DLC is located under instrument panel between steering column and the radio. See Fig 1

Connect Worldwide Diagnostic System (WDS) tester or New Generation Star (NGS) tester to Data Link Connector (DLC), DLC is located under instrument panel between steering column and the radio. See Fig 1. Using WDS or NGS tester, perform data link diagnostic test. See DATA LINK DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM in appropriate MODULE COMMUNICATIONS NETWORK - SABLE & TAURUS article. After data link diagnostic test results are retrieved, perform the following as applicable:

If WDS or NGS tester responds with CKT914, CKT915 or CKT70=ALL ECUS NO RESP/NOT EQUIP, repair module communications concern. See appropriate MODULE COMMUNICATIONS NETWORK - SABLE & TAURUS article.
If WDS or NGS tester displays NO RESP/NOT EQUIP for Generic Electronic Module (GEM), perform TEST D: NO COMMUNICATION WITH GENERIC ELECTRONIC MODULE under SYSTEM TESTS.
If WDS or NGS tester responds with SYSTEM PASSED, retrieve and record continuous DTCs. Erase continuous DTCs. Using WDS or NGS tester, perform GEM self-test. Perform appropriate test in accordance with DTC retrieved. See GENERIC ELECTRONIC MODULE DTC INDEX table. Codes listed in these table are only for testing covered in this article. For complete DTC listing, see appropriate MODULE COMMUNICATIONS NETWORK - SABLE & TAURUS article.
If no DTCs are retrieved, repair by symptom. See SYMPTOM INDEX table under SYSTEM TESTS.

Fig 1: Locating Data Link Connector & Identifying DLC Terminals

Courtesy of FORD MOTOR CO.

GENERIC ELECTRONIC MODULE DTC INDEX

DTC ⁽¹⁾

Description

Perform Test

B1342

ECU Defective

⁽²⁾

B1522

Hood Switch Short To Ground

B1833

Door Unlock Switch Circuit Short To Ground

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

⁽²⁾	Using WDS or NGS tester, retrieve and document all continuous DTCs. Perform Generic Electronic Module (GEM) self-test. If DTC B1342 is retrieved again, replace GEM. See GENERIC ELECTRONIC MODULE under REMOVAL & INSTALLATION.