- Important Preliminary Checks

Important Preliminary Checks

Before using this section, perform the Powertrain On-Board Diagnostic (OBD) System Check and verify all of the following items: Testing and Inspection

^ The PCM and MIL (Service Engine Soon) are operating correctly.

^ There are no DTC(s) stored.

^ Scan tool data is within normal operating range, Refer to Typical Scan Data Values.

^ Verify the customer complaint and locate the correct symptom in the table of contents. Perform the procedure included in the symptom chart.