04 GP Shift indicator erratic!

[99z34na]

04 GP GTP.  The DIC screen shows mileage and the shift position.  However the position it reads is going all over between 1 2 3 P D crazy like while driving or sitting.  Also the shift between 1-2 is like getting shoved from behind harsh.  Checked the pcm and what wires I can get at, checked battery and cables, unplugged and replugged DIC.   Going to look at the Neutral Safety Switch and the plug on the Transmission.  
 

never seen anything like this before.   Also it doesn’t always want to start at all.  Like no crank at all.  This is why I’m hoping the Neutral Safety Switch.  
 

any expertise????

[Black92GS]

51 minutes ago, 99z34na said:

04 GP GTP.  The DIC screen shows mileage and the shift position.  However the position it reads is going all over between 1 2 3 P D crazy like while driving or sitting.  Also the shift between 1-2 is like getting shoved from behind harsh.  Checked the pcm and what wires I can get at, checked battery and cables, unplugged and replugged DIC.   Going to look at the Neutral Safety Switch and the plug on the Transmission.  
 

never seen anything like this before.   Also it doesn’t always want to start at all.  Like no crank at all.  This is why I’m hoping the Neutral Safety Switch.  
 

any expertise????

Before you change the range sensor, double check that you don’t have any chafed wiring, corroded pins in the connector etc… first. Don’t want to replace it if there is something else at play. 
 

I can just about guarantee that your no starts and rough shifts are all related, so I wouldn’t worry about those until you get the range sensor issue worked out.