Mitsubishi Montero & Montero Sport This sport utility vehicle offers more size than the other Mitsubishi SUVs, but manages to keep a sporty look and comfortable feel, unlike many larger SUVs.

Check engine light not working

  #1  
Old 03-20-2011, 10:54 AM
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Default Check engine light not working

I have a 2001, Montero sport ES with 117k miles, check engine light is not working and it is not the bulb, Have a feeling that the place i bought from may have disabled it intentionally, I have checked all the fuses and they are all good but there are some that are missing and I can't find a diagram that tells me what they are, can anyone please give me some direction
 
  #2  
Old 03-20-2011, 03:37 PM
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You need to find your ECU pinout diagram. Maybe look through a manual like Haynes or Chiltons to find that.

There is a certain pin on the ECU that pertains to the check engine light. When you remove it or cut the wire, you eliminate the light.
 
  #3  
Old 03-20-2011, 03:51 PM
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ok is there a fuse for the ecu, my fuse box diagram not showing one and i have not been able to find a book anywhere locally
 
  #4  
Old 03-20-2011, 04:02 PM
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No, there is not.

Look online for a service manual, you should be able to find one.
 
  #5  
Old 03-21-2011, 07:47 PM
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ty, found a wiring diagram online and traced out the problem, you were right was a clipped wire under the dash that was very well hidden. Now i can work on the the rest of the problems in a new thread
 
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