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Home >> Scion >> 2005 >> xA Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Steering Column Switches >> Abs With EBD & BA & TRAC & VSC System >> DTC C1246/46: Malfunction In Master Cylinder Pressure Sensor >> Circuit Description

Circuit Description

The master cylinder pressure sensor is connected to the skid control ECU in the actuator.

DTC CONDITION DETECTION

DTC No. DTC Detection Condition Trouble Area
C1246/46
  • When vehicle speed is 7 km/h (4 mph) or more and PMC terminal voltage of skid control ECU exceeds 0.86 V, condition that voltage does not change by 0.005 V or more continues for 30 sec.
  • Noise in terminal PMC of skid control ECU occurs 7 times or more within 5 sec.
  • When stop lamp switch is OFF, condition that PMC terminal voltage of skid control ECU is 0.86 V or more, or less than 0.3 V continues for 5 sec. or more.
  • When IG1 terminal voltage is 9.5 to 17.2 V, condition that VCM terminal voltage of skid control ECU is out of range from 4.4 to 5.6 V continues for 1.2 sec. or more.
  • When VCM terminal voltage of skid control ECU is 4.4 to 5.6 V, condition that PMC terminal voltage of skid control ECU is out of range from 0.14 to 4.85 V continues for 1.2 sec. or more.
  • Master cylinder pressure sensor
  • Master cylinder pressure sensor circuit
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