When the diagnosis B1425 Code appears, then you understand that problem is related with the body of the engine. You need to solve the problem if you have all necessary equipment and machineries. If not, then you should take help of professionals. Getting the meaning of the code easy when you know the manufacturer, model and you read manual. You should this dictionary meaning that is B means Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 means MFG – Manufacturer Specific. 4 means Transmission. 2 means Air Conditioning Clutch Feedback Circuit High Voltage. 5 means Park Switch Circuit Engine Torque Signal Circuit.