Reading and Clearing Diagnostic Trouble Codes

On-Board Diagnostic With Diagnostic Tool

NOTE: For detailed instruction and other diagnostic methods using the scan tool or equivalent, refer to the scan tool tester manual and the Powertrain Control/Emissions Diagnosis (PC/ED).

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 Codes
^ Quick Test 5.0 - Key On, Engine Running (KOER)
^ Special Test Modes
- Wiggle Test Mode
- Output Test Mode
^ PCM Reset Mode
^ Clearing DTCs P1000
^ OBD II Drive Cycle
^ Other scan tool Features

For further information on other diagnostic testing features using the scan tool or generic scan tool, refer to the Powertrain Control/Emissions Diagnosis (PC/ED).

Other diagnostic methods include the following.
^ Parameter Identification (PID) Access Mode
^ Freeze Frame Data Access Mode
^ Oxygen Sensor Monitor Mode