P2523 Code Definition
P2523 A/C Request 'B' Circuit Low
What Does the Engine Code P2523 Mean?
Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "2" in the second position means that this is a ISO/SAE controlled OBD-II (OBD2) DTC. "5" in the third character position in a DTC indicates that the vehicle speed, idle control and auxiliary inputs is experiencing a malfunction. The last two characters "23" is DTC number. OBD2 Diagnostic Trouble Code P2523 means that A/C Request 'B' Circuit Low has been detected.