On-Board Diagnostic (OBD) With Diagnostic Tool

WARNING: This page is about a different car, the 2003 Mercury Sable and 2003 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For detailed instruction and other diagnostic methods using the scan tool or equivalent; refer to the scan tool tester manual and the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.

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 (KOEO)
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
On-Board Diagnostic (OBD) II Drive Cycle
Other Scan Tool Features

For additional information on other diagnostic testing features using the scan tool, refer to the SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article. Other diagnostic methods include the following.

Parameter Identification (PID) Access Mode
Freeze Frame Data Access Mode
Oxygen Sensor Monitor Mode