Intermittent Malfunction Indicator Lamp

In the case of an intermittent fault, the MIL (Malfunction Indicator Lamp may illuminate and then after 3 trips turn off. However, the corresponding diagnostic trouble code will store in the memory. When unexpected diagnostic trouble codes appear, check for an intermittent malfunction.

The provision for communicating with the control module is a Data Link Connector (DLC). The DLC is usually located under the instrument panel. The DLC is used in order to connect to a scan tool. Some common uses of the scan tool are listed below:
^ Identifying stored Diagnostic Trouble Codes (DTCs)
^ Clearing the DTCs
^ Performing output control tests
^ Reading serial data