Allison 6 speed Trans would not shift. Remained in 'N' even when indicating 'D' or 'R'. Display said to 'reset in 'N'. Didn't work. Disconnected batts. It rebooted. Worked briefly. Added fluid, down a qt. It worked then returned to hard shifting and down shifting and no shifting.
Code said Solenoid E 'open', Bank 1.
Code said Solenoid E 'open', Bank 1.