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.
Inspection and Verification
2009 Ford Fusion SEL, 3.0 1, FWDSECTION Inspection and Verification
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.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Loose, missing or damaged A/C compressor drive belt
- Loose or disconnected A/C clutch
- Broken or binding door/actuator
- Broken or leaking refrigerant lines
- Smart Junction Box (SJB) fuse(s):
- 3 (10A)
- 14 (5A)
- 19 (5A)
- 10 (5A)
- 12 (5A)
- Bussed Electrical Center (BEC) fuse(s):
- 2 (30A)
- 47 (15A)
- 49 (15A)
- Blower motor inoperative
- A/C compressor inoperative
- Circuitry open/shorted
- Disconnected electrical connectors
- Cooling fan inoperative
- As pinpoint tests and measurements are being carried out, be sure to inspect for any disconnected, loose-fitting or incorrectly installed components, module and inline electrical connectors and pins.
- If the inspection reveals obvious concern(s) that can be readily identified, repair as required.
- If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
- If the scan tool does not communicate with the VCM:
- check the VCM connection to the vehicle.
- check the scan tool connection to the VCM.
- refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no power to the scan tool.
- If the scan tool does not communicate with the vehicle:
- verify the ignition key is in the ON position.
- verify the scan tool operation with a known good vehicle.
- Refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the SJB or PCM.
NOTE: The Smart Junction Box (SJB) may also be referred to as a Generic Electronic Module (GEM). - Carry out the network test.
- If the scan tool responds with no communication from one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
- If the network test passes, retrieve and record the continuous memory DTCs.
- Clear the continuous DTCs and carry out the self-test diagnostics for the SJB or PCM.
- If the SJB DTCs retrieved are related to the concern, refer to the Smart Junction Box (SJB) DTC Chart. If the PCM DTCs retrieved are related to the concern, refer to the PCM DTC Chart.
- If no DTCs related to the concern are retrieved, go to Symptom Chart - Climate Control Systems or Go to Symptom Chart - NVH .
NOTE:
Make sure to use the latest scan tool software release.
NOTE:
The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
NOTE:
Some PCM DTCs may inhibit A/C operation. If any PCM DTCs are retrieved, diagnose those first. Refer to 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.