Codes P0700 and P0705

Tiny
MATTERNMATT
  • MEMBER
  • 2006 CHEVROLET COBALT
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 220,000 MILES
Okay, so I know P0700 is a TCM code and P0705 is the TRS, I changed the TRS and cleared the codes, and shifter locks in park. I released the shifter and car runs great, no issues and no CEL until I shut it off. When I restart it, CEL lights up after driving a couple of blocks, same codes, same process.
The shifter was apparently rebuild by previous owner (found old parts and instruction in the trunk). I am thinking there is some sort of calibration between the shifter and the TRS but I just cannot figured it out. Any advice or guidance would be appreciated.
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Tuesday, April 24th, 2018 AT 9:52 PM

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Tiny
HEYMAN1104
  • EXPERT
You should take the car to the dealership or a transmission shop and get it scanned. The P0700 code tells you that the transmission computer (TCM) has a code stored. The standard OBD2 scanner will not pick it up, so you will need a better scanner for it. The P0705 is for the range sensor circuit. I am attaching all of Prodemand's information in screenshots below. Hope this information helps.
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Wednesday, April 25th, 2018 AT 3:49 AM

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