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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 114 (Electronically Controlled Brake System - Diagnostic Codes (C1415-U0073) & Symptom Tests (Hybrid)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C14D5: Accumulator Pressure Sensor Stuck [04/2018 - ] >> Description

DTC C14D5: Accumulator Pressure Sensor Stuck [04/2018 - ]: Description

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The accumulator pressure sensor is built into the brake booster with master cylinder assembly and detects the accumulator pressure.

If the skid control ECU (brake booster with master cylinder assembly) detects that the accumulator pressure sensor value is below the threshold, operation of the motor relay is requested and the pump motor built into the brake booster pump assembly operates.

DTC No. Detection Item INF Code DTC Detection Condition Trouble Area MIL Note
C14D5 Accumulator Pressure Sensor Stuck 334 When the pump motor is operating, the accumulator pressure sensor signal does not change for 14 seconds or more. Skid control ECU (brake booster with master cylinder assembly) Comes on
  • INF Code 334: SAE Code C14D5
  • Electronically controlled brake system DTC