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DTC C1246/46 Master Cylinder Pressure Sensor Malfunction: Description

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DTC DESCRIPTION

DTC No. DTC Detection Condition Trouble Area
C1246/46  One of the following 1., 2., 3., 4. or 5. is detected:
  1. At a vehicle speed of 7 km/h (4 mph) or more, PMC terminal voltage does not change by more than 0.005 V once it exceeds 0.86 V continues for at least 30 seconds.
  2. Interference occurs to ECU terminal PMC 7 times or more for 5 sec.
  3. ECU terminal STP is OFF, and the condition that terminal PMC voltage becomes more than 0.86 V or less than 0.3 V continues for 5 sec. or more.
  4. The condition that ECU terminal IG1 voltage is 9.5 V to 17.0 V and terminal VCM voltage other than the range from 4.4 V to 5.6 V continues for 1.2 sec. or more.
  5. The condition that ECU terminal VCN voltage is 4.4 V to 5.6 V, and terminal PMC voltage other than the range from 0.14 V to 4.85 V continues for 1.2 sec. or more.
  • Master cylinder pressure sensor
  • Master cylinder pressure sensor circuit
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