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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 108 (Electronically Controlled Brake System (Hybrid) - Diagnostic Codes (2 Of 5)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1256: Accumulator Low Pressure [06/2018 - ] >> Monitor Strategy

Monitor Strategy

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Related DTCs C1256: Accumulator pressure too low
Required Sensors/Components(Main) Brake booster pump assembly
Brake actuator (brake booster with master cylinder assembly)
Required Sensors/Components(Related) Skid control ECU (brake booster with master cylinder assembly)
Brake actuator (brake booster with master cylinder assembly)
Stop light switch assembly
Brake booster pump assembly
Brake pedal stroke sensor assembly
Frequency of Operation Continuous
Duration 1.7 to 9 seconds (Time depends on battery voltage): C1256 (Case 1)
3 seconds: C1256 (Case 2)
33 to 99 seconds (Time depends on battery voltage): C1256 (Case 3)
MIL Operation Immediately
Sequence of Operation None
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