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1983 - 2012 Ranger & B-Series All Ford Ranger and Mazda B-Series models

Check engine light on

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Old Dec 10, 2025 | 12:21 AM
  #1  
ethanmccain's Avatar
ethanmccain
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Check engine light on

I have a 2003 Ford Ranger XLT, with a 4.0L SOHC. Trying to figure out why the check engine light is on
. Tried to read codes, scanner port is dead
 

Last edited by ethanmccain; Dec 10, 2025 at 12:25 AM.
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Old Dec 10, 2025 | 10:45 AM
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Check the in cabin/drivers end of the dash fuse box Cigar lighter fuse , the DLC gets its power there. Good idea to scan for trouble code clues. Post All code Numbers, pending or set as they can help focus a trouble-shoot.
 

Last edited by pawpaw; Dec 11, 2025 at 08:40 PM.
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Old Dec 26, 2025 | 10:40 AM
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pawpaw
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Bump:
How's the No DLC Power trouble-shoot going Ethan, 274 curious minds would like to know?
 

Last edited by pawpaw; Dec 26, 2025 at 10:48 AM.
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