[4th Gen : 01-07]: Transmission won't shift to higher gears and speedometer acting up
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The shift indicator shows boxes around P R N D 3 2 and will not shift past second gear speedometer acting erratically I got a 1698 code which means no communication from ecm
Last edited by jwortheyjr; Apr 19, 2015 at 03:14 PM.
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I also changed the input and output sensors any thoughts ??
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Joined: Dec 2013
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What is the year and model?
I know this is gonna sound odd but have you checked your Alternator? A bad diode can cause some issues.
Check the battery, have it load tested these things are dependent on good voltage and can cause weird issues,
without the year i really can't give to much info...
I know this is gonna sound odd but have you checked your Alternator? A bad diode can cause some issues.
Check the battery, have it load tested these things are dependent on good voltage and can cause weird issues,
without the year i really can't give to much info...
The member did post for 2001 to 2007, RS body. 41TE transmission. I'm guessing you have a 3.3 or 3.8 engine. I would start by doing a ohm test on the wires for the circuit. I have seen the wires short to the engine block near the starter and the fuel injection harness on the rear cylinder head.