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Home >> Audi >> 2015 >> A4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 420 (Electronically Controlled Brake System (Diagnostic Codes & Symptom Tests)) >> Electronically Controlled Brake System >> DTC C1256/56: Accumulator Low Pressure [08/2013 - ] >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • When replacing the brake actuator (brake booster with master cylinder assembly), perform initialization and calibration of the linear solenoid valve. Refer to INITIALIZATION [08/2013 - ] .
  • Inspect the fuses for circuits related to this system before performing the following inspection 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. Refer to DTC C1202/68: Master Reservoir Level Malfunction [08/2013 - ] . Refer to DTC C1241/41: Low Battery Positive Voltage; DTC C1242/42: Open in IG1 / IG2 Power Source Circuit [08/2013 - ] . Refer to DTC C1252/52: Brake Booster Pump Motor on Time Abnormally Long; DTC C1253/53: Pump Motor Relay Malfunction [08/2013 - ]  or refer to DTC C1391/69: Accumulator Leak Malfunction [08/2013 - ] ).

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