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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1751 (COMPONENT TESTING (HYBRID))INTRODUCTIONMAIN LIGHT SWITCHCOMPONENT TESTING PROCEDURE
2009 Mercury Milan Premier, 3.0 1, AWD
Component testing procedure
2009 Mercury Milan Premier, 3.0 1, AWDSECTION Component testing procedure
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
MAIN LIGHT SWITCH - COMPONENT TESTING
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Headlamp circuit | 3 and 7 | Off | Open circuit |
| Park | Open circuit | ||
| Low | Closed circuit | ||
| Auto | Open circuit | ||
| Autolamp circuit | 3 and 4 | Off | Open circuit |
| Park | Open circuit | ||
| Low | Open circuit | ||
| Auto | Closed circuit | ||
| Parking lamps | 3 and 2 | Off | Open circuit |
| Park | Closed circuit | ||
| Low | Open circuit | ||
| Auto | Open circuit | ||
| Fog lamps | 3 and 5 | Off | Open circuit |
| Fog lamps | Closed circuit | ||
| Off | 3 and 6 | Off | Closed circuit |
| Park | Open circuit | ||
| Low | Open circuit | ||
| Auto | Open circuit |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.