Ford Ranger/Explorer/Mountaineer 1991-1999

Diagnostic Connector


To read Diagnostic Trouble Codes (DTC's) the test connector for the EEC system must be used. This connector is known as the Assembly Line Diagnostic Link (ALDL) connector on vehicles with EEC-IV ignition equipped engines, or the Data Link Connector (DLC) on all other models (EEC-V), is located in the passenger compartment. It is attached either to the underside of the instrument panel, and is accessible from the driver's side of the vehicle, or it is under the hood near the power distribution box.

The connector is trapezoidal in shape and can accommodate up to 16 terminals.

See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: To access the diagnostic connector, unfasten it from its protective cover, which is labeled EEC TEST