DTC C1246/46 Master Cylinder Pressure Sensor Malfunction; DTC C1281/81 Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC): Description
The master cylinder pressure sensor is connected to the skid control ECU in the actuator.
DTC C1281/81 is output only in the test mode (SIGNAL CHECK).
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002 DTC TROUBLE DETECTION CHART
| DTC No. |
DTC Detecting Condition |
Trouble Area |
| C1246/46 |
When any of the following is detected:
- At a vehicle speed of 4.3 mph (7 km/h) or more, when the PMC terminal voltage is over 0.86 V, it does not change by 0.005 V or more for 30 seconds.
- Noise occurs in the PMC terminal 7 times or more within 5 seconds.
- When the stop light switch is OFF, the PMC terminal voltage is more than 0.86 V or less than 0.3 V for 5 seconds or more.
- With the IG1 terminal voltage between 9.5 and 17.2 V, the VCM terminal voltage is not between 4.4 and 5.6 V for 1.2 seconds or more.
- When the VCM terminal voltage is between 4.4 and 5.6 V, the PMC terminal voltage is not between 0.19 and 4.57 V for 1.2 seconds or more.
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- Master cylinder pressure sensor
- Master cylinder pressure sensor circuit
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