C1256
DTC C1256/57 Accumulator Low PressureDESCRIPTION
DTC Detection Condition:
The accumulator pressure sensor is built into the actuator and detects the accumulator pressure.
The skid control ECU turns on the brake warning light / yellow (minor malfunction) and sounds the skid control buzzer if it senses a decrease in the accumulator pressure.
HINT: DTCs may be output if the accumulator pressure drops due to frequent braking (this is not a malfunction).
Wiring Diagram:
Step 1-2:
Step 2(Continued)-4:
Step 4(Continued):
INSPECTION PROCEDURE
NOTE: When replacing the skid control ECU or brake actuator,perform initialization of linear solenoid valve and calibration. Initialization
HINT: When C1202/68, C1241/41, C1252/52, C1253/53 or C1391/69 are output together with C1256/57, inspect and repair the trouble areas indicated by C1202/68, C1241/41, C1252/52, C1253/53 or C1391/69 first.