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1993 ECC 850

My original ECC just burnt out at 238k. Replaced it with a used one. Everything works except auto fan position. Get the two blinking lights and code 135 in B-1 socket. That code is "no signal from engine coolant sensor". The dash temperature gauge works fine, so the sensor appears to be sending a signal. Is the problem in the replacement unit or something else. Thanks






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New 1993 ECC [850]
posted by  someone claiming to be David  on Tue Nov 15 18:52 CST 2022 >
  • New 1993 ECC [850]
    posted by  machine man subscriber  on Tue Nov 15 23:11 CST 2022 >


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