how do i know if a fuse is blown or a light bulb

Asked by Jan 05, 2013 at 11:19 AM about the 1999 Ford Expedition 4 Dr XLT 4WD SUV

Question type: Maintenance & Repair

failed state iinspection becaeu service engine soon light DID NOT COME ONE

4 Answers

89,835

Look at the dash board when you turn the key. All the bulbs should light up during the light bulb check.

all other light up so this one that did not light up is a fuse that is blown,,, failed inspection becaue of wervice engine soon not showing up

89,835

Check your fuses and replace any that are blown. You'll have to check some with the key on if you are using a volt meter.

89,835

It could be there is a problem with the ECU (engine control unit). That's the thing that turns the light on. Get the codes read to see if there's a problem with it. Does the inspection place do repairs in your state?

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