Component Testing Procedure

2010 Ford Focus S, StandardSECTION Component Testing Procedure
WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 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  1 and 8 Off Open circuit
Park Open circuit
Head Closed circuit
Auto Open circuit
Autolamp Circuit  1 and 9 Off Open circuit
Park Open circuit
Head Open circuit
Auto Closed circuit
Parking Lamps  1 and 3 Off Open circuit
Park Closed circuit
Head Open circuit
Auto Open circuit
Fog lamps  1 and 6 Off Open circuit
Fog lamps Closed 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.