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Home >> Toyota >> 2006 >> Camry Base, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics) >> 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.

Fig 1: Master Cylinder Pressure Sensor Circuit Description
G04390066Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
MALFUNCTION IN MASTER CYLINDER PRESSURE SENSOR

DTC No. DTC Detecting Condition Trouble Area
C1246/46 When any of the following (1 to 5) is detected:
  1. All the following conditions continue for at least 30 seconds.
    • Vehicle speed is more than 4 mph (7 km/h).
    • PMC terminal voltage does not change by more than 0.05 V once it exceeds 0.86 V.
  2. (2)PMC terminal receives interference at least 7 times within 5 sec.
  3. All the following conditions continue for at least 1.2 seconds.
    • Stop switch is OFF.
    • PMC terminal voltage is more than 0.86 V or less than 0.3 V.
  4. All the following conditions continue for at least 1.2 seconds.
    • IG1 terminal voltage is between 9.5 and 17.2 V.
    • VCM terminal voltage is not within 4.4 and 5.6 V.
  5. All the following conditions continue for at least 1.2 seconds.
    • VCM terminal voltage is between 4.4 and 5.6 V.
    • PMC terminal voltage is not within 0.14 and 4.85 V.
  • Master cylinder pressure sensor
  • Master cylinder pressure sensor circuit