Recently replaced the alternator in my Ford F-150 now the radio and clock display aren't working. The panel lights up but no display or audio. Any solutions?
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Let me ask a few questions: The items mentioned, radio, clock and power outlet...are these the only items not working? does the instrument panel light? Also , does the cigar lighter work? Lastly check fuse # 7(40A) in the battery junction box
Sounds like the hot in accy / run position for the fuse is blown ( the symptom is what the radio does when the key is out of the ign ).
Check ( with a meter ) the fuses in the cab fuse panel :# 22 ( this is the pwoer to the radio from teh accessory delay relay ). The other fuses : #31, #7 and #1
Fuse #31 should be good, this is hot at all times ( keeps the memory and allows the menu to show the clock to function )
Fuse #7 is only hot in the start position ( not sure what this is for to be honest ).
Fuse #1 is hot in Accy & Run positions.
So the total fuse meter check / replace list is #22, #7 and #1
Check fuse 8 (10 amp fuse) in the under dash fuse panel. Make sure you have voltage to it on both sides of the fuse.This fuse feeds all of the items you listed.
This would be a good indicator that your display screen is burnt out. This means there is nothing that can be done with it unless you replace the whole stereo unit.
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