Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2009FUSION SEL, 3.0 1, FWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1332 (AUTOMATIC TRANSMISSION)DIAGNOSTIC TESTSDIAGNOSTICSON-BOARD DIAGNOSTICS WITH SCAN TOOL
2009 Ford Fusion SEL, 3.0 1, FWD
On-Board Diagnostics with Scan Tool
2009 Ford Fusion SEL, 3.0 1, FWDSECTION On-Board Diagnostics with Scan Tool
WARNING: This page is about a different car, the 2009 Ford Mustang. 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, refer to the scan tool tester and the Introduction - Gasoline Engines
.
These quick tests should be used to diagnose the 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
- Quick Test 5.0 - Key On, Engine Running (KOER)
- Special Test Mode
- Wiggle Test Mode
- Output Test Mode
- PCM Reset Mode
- Clearing DTCs
- OBD II Drive Cycle
For further information on other diagnostic testing features using the VCM or generic scan tool, refer to the Introduction - Gasoline Engines .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.