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Home >> Toyota >> 2019 >> Mirai >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System - Diagnostic Codes (1 Of 2) >> Electronically Controlled Brake System >> DTC C1256-56: Accumulator Low Pressure [06/2015 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • When replacing the brake actuator (brake booster with master cylinder assembly), perform initialization and calibration of the linear solenoid valve.

    Refer to INITIALIZATION [06/2015 - ]

  • Inspect the fuses for circuits related to this system before performing the following procedure.

HINT: 

When C1202/68, C1241/41, C1252/52, C1253/53 and/or C1391/69 are output together with C1256/56, inspect and repair the trouble areas indicated by C1202/68, C1241/41, C1252/52, C1253/53 and/or C1391/69 first.

For C1202/68: Refer to DTC C1202/68: Master Reservoir Level Malfunction [06/2015 - ] 

For C1241/41: Refer to DTC C1241/41: Low Battery Positive Voltage; DTC C1242/42: Open in IG1 / IG2 Power Source Circuit [06/2015 - ] 

For C1252/52 and C1253/53: Refer to DTC C1252/52: Brake Booster Pump Motor on Time Abnormally Long; DTC C1253/53: Pump Motor Relay Malfunction [06/2015 - ] 

For C1391/69: Refer to DTC C1391/69: Accumulator Leak Malfunction [06/2015 - ]

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