> Also, it doesn't always hit the idiot light. (it never did on my Nissan
>240SX) You'd have to look at how the computer works (what it considers a
>soft vs. hard failure, etc). Also, there might be a way to read codes
>(not all of which would trip the light). Chrysler used to be able to be
>sent into diag mode by turning the ignition on and off three times (but that
>was k-cars, not sure about jeeps)
Jeeps from '91 on did have that feature. Cycling the ignition switch on/off 3
times will cause the check engine light to blink out the error codes. The
codes should keep cycling until the ignition is turned off. I don't know that
feature still worked after OBD.
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