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Thread: 1990 Jeep Comanche 2.5L ECM error code retrieval?

  1. #1
    Join Date
    Nov 2009
    Posts
    3

    Default 1990 Jeep Comanche 2.5L ECM error code retrieval?

    How am I able to retrieve the ecm codes out of a 1990 Jeep Comanche with a 4 cyl. engine? The Haynes manual specifies every other year but mine.

  2. #2
    Join Date
    Jan 2007
    Posts
    4,850

    Default

    Shandley,

    Unfortunately on 1990 and earlier models (with the exception of V6 models, which use a GM-based system), a DRB-II scan tool (or other scan tool compatible with your engine management system) is required to read any stored trouble codes. There is a note to that effect in Section 10 of Chapter 6.

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