Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Toyota >> 2008 >> Sienna LE, AWD >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brake Control System >> Vehicle Stability Control System >> DTC C1246/46 Master Cylinder Pressure Sensor Malfunction >> Description

DTC C1246/46 Master Cylinder Pressure Sensor Malfunction: Description

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

DIAGNOSTIC TROUBLE CODE CHART

DTC Code DTC Detection Condition Trouble Area
C1246/46 When any of the following is detected:
  1. When the vehicle speed is 7 km/h (4 mph) or more and PMC terminal voltage of skid control ECU exceeds 0.86 V, the condition that the voltage does not change by 0.005 V or more continues for 30 sec.
  2. Noise in terminal PMC of skid control ECU occurs 7 times or more within 5 sec.
  3. When the stop light switch is off, the 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.
  4. When IG1 terminal voltage is between 9.5 and 17.2 V, the condition that the VCM terminal voltage of skid control ECU is out of the range from 4.4 to 5.6 V continues for 1.2 sec. or more.
  5. When VCM terminal voltage of skid control ECU is between 4.4 and 5.6 V, the condition that the PMC terminal voltage of skid control ECU is out of the range from 0.14 to 4.85 V continues for 1.2 sec. or more.
  • Master cylinder pressure sensor
  • Master cylinder pressure sensor circuit
scientia non olet · About Mike's Workshop Manuals