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self test codes

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Old Jun 27, 2008 | 11:45 AM
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tim'sbronco
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self test codes

Why won't my 1989 bronco 5.8 give me flash codes when I jump the diagnostic lead with a wire as per the repair manual? When I jump it and turn the key, the engine light doesn't flash or anything. Trust me, it should have codes. Do the codes get erased if you remove the battery? I can't get the thing running, so I can't warm it up or do a running test.
 
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Old Jun 27, 2008 | 12:19 PM
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Is the bulb burned out?
 
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Old Jun 27, 2008 | 08:47 PM
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Without the jumper, the light should turn on when you turn the key to the run position without starting.
 
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