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PCM Diode-Fuse Ford Explorer

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Anonymous Poster

Apr 15, 2007, 6:14 PM

Post #1 of 2 (5990 views)
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25 amp fuse blown(repeatedly) to PCM diode. What value should good diode read (mine reads .525). Or what other known issue could I be facing? Vehicle is 1998 Ford Explorer XLT "x" VIN.

steve01832 profile image

Apr 18, 2007, 5:59 AM

Post #2 of 2 (5964 views)
Re: PCM Diode-Fuse Ford Explorer [In reply to] Sign In

A diode is a one way electrical gate. It should have continuity in one direction and read open in the other. You can check this with an ohmmeter. Put the leads on the terminals. Observe the meter reading. Now swap the leads. The reading should be the exact opposite. If it reads open in both directions, the diode is open and needs to be replaced. If it reads continuity in both directions, it is shorted and needs to be replaced.


PCM Diode-Fuse Ford Explorer

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