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Thread: 1997 Jeep ZJ Grand Cherokee (JTEC PCM): is there a manual/auto trans selector?

  1. #1
    Potential Tuner
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    Jan 2020
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    Tijeras, NM
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    1997 Jeep ZJ Grand Cherokee (JTEC PCM): is there a manual/auto trans selector?

    And if so, is it working correctly in the current version of the software?

  2. #2
    Potential Tuner
    Join Date
    Nov 2019
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    9
    Can't confirm specifically about the '97 ZJ JTEC. And, I don't have anything to confirm if it is working correctly. But, I'll provide the reference info that I do have...

    I see that a transmission selection calibration variable exists in my '97 XJ 4.0l 5MT JTEC as:
    "[ECM] 440 - Transmission Type: Transmission fitted to vehicle."
    I have the 5-speed so this value is set to "Manual".
    Capture.JPG
    I have seen a few other JTEC files that have additional transmission configuration calibration variables that are used to set the specific type of AT as well.