Peugeot 407 abs/esp/esw warning lights keep coming on

control units have a memory get codes read most garages will read codes esp light will come on with abs fault will prob be a wheel speed sensor code read will tell

First, you will need to know which abs sensor is giving you the problem, front right, front left, rear right or rear left? Replace the sensor and tune up the abs ecu by using PPS. Initialize the gearbox too as the gearbox receive information from your ABS. This should solve your problem.