P02723 code.
 

Hey guys got a strange problem. friend has an 08 2500 6.0 6l90 truck an just recently started throwing a code when you pull it into manual mode. regular driving and tow/haul work fine and no problems but sticks in gear in manual mode and sets code p02723. have to clear code to get trans to shift back to 1st. anyone having or have had this problem?