Retrieving & Clearing Diagnostic Trouble Codes

Diagnostic procedures are designed to detect system faults as quickly as possible. Computer system diagnostic fault messages are accessed through Data Link Connector (DLC). See Figure . Chrysler's Diagnostic Readout Box (DRBIII(R)) scan tool or generic scan tool, is used to access information from DLC.

A 2000 diagnostic program cartridge, scan tool, diagnostics cable, jumper wires and digital volt/ohmmeter will be needed for testing.

1. Connect scan tool to Data Link Connector (DLC). DLC is a 16-pin connector located on left side of steering column, above brake pedal. Turn ignition on. If scan tool display is not blank, go to next step. If scan tool display is blank, check connections, scan tool cable and power at DLC terminal No. 16 (Pink/White wire). Try scan tool on another vehicle.
2. Using scan tool, check communication with air bag control module, instrument cluster, powertrain control module and sentry key immobilizer module. If scan tool can communicate with all modules, go to next step. If scan tool displays NO RESPONSE, perform appropriate test under SYSTEM TESTS. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION  table.
3. Using scan tool, select READ DTCs. If any fault messages are displayed, perform appropriate test under SYSTEM TESTS. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION  table. If no DTCs exist, but a symptom is present, repair by symptom. See SYMPTOM IDENTIFICATION  table. After repairs, ensure problem(s) or failure(s) have been corrected by performing appropriate verification test under VERIFICATION TESTS.