Question about 2006 Jeep Grand Cherokee
The point you are at now is when you should have a good transmission shop do a "ride along" scan test to determine if the problem is in a control unit or the trans itself. The control module takes information from the engine management system as well so if something such as your throttle position sensor on the throttle body has failed (or even the map sensor) the trans control may not allow proper shifting.
While it is possible to do continuity and individual component tests on the entire system,(to a point) the fastest and most accurate means of diagnosis is to have a shop do that for you. Then, if you want, do the actual repair work yourself!
Posted on May 12, 2010
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Posted on Jan 02, 2017
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