Control circuit device for automatic transmission

A connector assembly to be connected to the control circuit device for vehicle automatic transmission, comprising:

• a control circuit unit including a body having a built-in control circuit for a vehicle automatic transmission and tab-like terminals extending from the body while being aligned in an arrangement direction;
• a cover configured to cover the control circuit unit from one side in an intersection direction intersecting the arrangement direction;
• an insulating protection tube configured to collectively surround the terminals and provided with partition walls to be disposed between adjacent ones of the terminals;
• the cover and the protection tube including locking means configured to lock the cover and the protection tube to each other and positioning means configured to position the control circuit unit, the control circuit unit being held positioned with respect to the cover and the protection tube with the cover and the protection tube locked by the locking means;
• and
• a vehicle connector insertable into an end of the protection tube opposite the partition walls and having connector-side grooves into which end edges of the partition walls are fit with the vehicle connector connected to the control circuit device.