Comanche 2WD L6-242 4.0L VIN S MFI (1992)
Fig. 5 Diagnostic Link Connector (DCL)
Fig. 6 Data Link Connector Location And Terminal Identification
USING SCAN TOOL
1. Connect a DRB or equivalent scan tool to diagnostic connector, located near engine controller.
2. Start engine, turn air conditioning on and off, then shut engine off.
3. Turn ignition switch to On position and access Read Diagnostic Trouble Code screen.
4. Record all diagnostic trouble code messages.
5. If display reads Radiator Fan Relay, proceed to Diagnostic Trouble Code Interpretation.