The automobile dictionary meaning of the B2405 Code is found online and it is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 2 for MFG – Manufacturer Specific. 4 for Transmission. 0 for IC Circuit High Voltage and 5 for Park or Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit. Like the all car engines, this engine scheme works especially advanced hydraulic lifters for the B2405 code intake and finish valves. The lifters can be distorted by disengaging an internal locking pin. The locking pin is disengaged by means of solenoids to change oil compression fed into the lifter.