The B1404 Code is related with the problem of engine. You need to know the detail things of the car for giving solution of the car and engine. Read the manual of the engine and car. Now get dictionary meaning of the code and that is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 for MFG – Manufacturer Specific. 4 for Transmission. 0 for IC Circuit High Voltage and 4 for Cruise Vehicle Speed/Set Speed Difference Too High. If you do not have all necessary machineries, then you should not try to solve the problem.