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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Code 51 ,1995 F 150

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Old Feb 1, 2009 | 08:46 AM
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Code 51 ,1995 F 150

OK, I am stumped.I had the clock spring replaced,then it came up with the 51 code.Found out on here it is a Thermal Fuse in the blue box.Went to the junk yard today and got a different blue box,same thing.I realize its a used part,but the airbags were not deployed in the junker.Should I take the box apart and check the thermal fuse for continuity?????I"m confused.Any help apriciated.Thanks DOUG
 
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Old Feb 1, 2009 | 10:44 AM
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51 - ECT sensor signal is greater than the Self-Test maximum of 4.6 volts.

That's the engine coolant temp sensor as far as I know.
 
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