Clearing Trouble Codes

On-Board Diagnostics with WDS

NOTE: For detailed instruction and other diagnostic methods using the WDS; Refer to Computers and Control System.

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 DTC's
^ OBD II Drive Cycle
^ Other WDS Features

For further information on other diagnostic testing features using the WDS or generic diagnostic tool; Refer to Computers and Control System. Other diagnostic methods include the following:
- Parameter Identification (PID) Access Mode
- Freeze Frame Data Access Mode
- Oxygen Sensor Monitor Mode