C1256 Accumulator Low pressure

• FJ Cruiser

• https://www.purefjcruiser.com/docs/2007%20Toyota%20FJ%20Cruiser%20Repair%20Manual/Brake%20Control/Vehicle%20Stability%20Control%20System/0280030.pdf

• Brake Booster
• Power Brake Booster: https://parts.lakelandtoyota.com/p/__/Power-Brake-Booster/4222958/4707060050.html
• DLC3
• Whistling noise when you step on your brakes

See also

• Diagnostic Trouble Code (DTC)
• OBD, OBD2, ECU, PO455, MaxiSys, DTC, iCarsoft, Carly, Autel, Launch, Porsche PIWIS, Topdon, autocodes.com, Dot.report
• Brakes, Reinforced carbon–carbon, callipers, Hydraulic Brake Booster, DTC: C1256 Accumulator Low pressure