Clearing Trouble Codes

On-Board Diagnostics with Diagnostic Tool

NOTE: For detailed instructions and other diagnostic methods using the scan tool, refer to the scan tool tester and Computers and Control Systems.

These quick tests should be used to diagnose the Powertrain Control Module (PCM) and should be carried out in order.
^ Quick Test 1.0 - Visual Inspection
^ Quick Test 2.0 - Set Up
^ Quick Test 3.0 - Key On, Engine Off
^ Quick Test 4.0 - Continuous Memory
^ Quick Test 5.0 - Key On, Engine Running
^ Special Test Mode
- Wiggle Test Mode
- Output Test Mode
^ PCM Reset Mode
^ Clearing DTCs
^ OBD II Drive Cycle
^ Other Scan Tool Features

For additional information on other diagnostic testing features using the scan tool, refer to Computers and Control Systems. Other diagnostic methods include:
^ Parameter Identification (PID) Access Mode
^ Freeze Frame Data Access Mode
^ Oxygen Sensor Monitor Mode