For 1990-2009 cars only
Before using this section, perform the Powertrain On-Board Diagnostic (OBD) System Check and verify all of the following items:
| • | 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 Engine Scan Tool Data List . |
| • | Verify the customer complaint and locate the correct symptom in the table of contents. Perform the procedure included in the symptom chart. |
