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DTC C1365/54 Accumulator Pressure Sensor Malfunction: Description

The accumulator pressure sensor is built into the brake actuator.

The skid control ECU detects the accumulator pressure based on the data sent from the accumulator pressure sensor, and then runs and stops the pump motor by operating the motor relay.

DTC DETECTION CONDITION CHART

DTC Code Information Code DTC Detection Condition Trouble Area
C1365/54 211 Sensor power 1 (VCM1) voltage is 4.7 V or less or 5.3 V or more for at least 0.05 seconds.
  • Accumulator pressure sensor
  • Accumulator pressure sensor circuit
  • Accumulator pressure sensor power supply
  • Brake actuator
  • Skid control ECU
212 Accumulator pressure sensor output voltage is less than 0.25 or 4.53 V or more for at least 0.05 seconds.
214 While the motor is OFF, the total of the wheel cylinder pressure sensor values of all 4 wheels increases but the accumulator pressure changes little for 0.5 seconds or more.
215 The accumulator pressure sensor output voltage is stuck at 4.53 V or less.