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Home >> Ford >> 1992 >> Thunderbird Base, 5.0 T >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Automatic Ride Control >> Quick Tests >> Quick Test A8 >> Checking Dimming Function

Checking Dimming Function

  1. Move ride control switch to FIRM position. FIRM RIDE light should come on. Turn headlights on and off while watching FIRM RIDE light.
  2. After TEST A1 through TEST A7 are completed, vehicle has passed diagnostics (no problem exists) if FIRM RIDE light is on bright with headlights off and is dimmer with headlights on. If FIRM RIDE light does not dim with headlights on, proceed to TEST C6.
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