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Transmision light on stuck in 3rd gear?

  #1  
Old 05-31-2013, 11:34 PM
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Join Date: May 2013
Location: Arizona
Posts: 5
Question Transmision light on stuck in 3rd gear?

I replaced the power/winter switch and transmision moduels and still have the same issue light comes on, I have to turn off and back on to reset then it is fine...Any ideas why?
 
  #2  
Old 06-02-2013, 02:19 PM
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Join Date: May 2013
Location: Arizona
Posts: 5
Default Update.....

Update for all: I check my Aldata files and there are a few ways this happens 1) if battery voltage drops below 10.50 volts there is a signal sent to the ECM which in turns generates a "Phantom code", and then puts transmission into "Limp" mode.
2) the power /winter switch...is bad
I replaced switch

I had battery and alternator checked with the equipment used at the local shops( they attached there equipment pressed a button), everything passed fine they said. I went home attached a simple volt meter and turn over engine ...voltage dropped to 10.5 volts....So I am thinking there is just a smaller battery installed. I have a 2 yr old battery with 550 cranking amps.... I will get a stronger battery and try again...any Ideas let me know
 
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