Master cylinder pressure sensor malfunction

The master cylinder pressure sensor is connected to the skid control ecu in the abs and traction actuator.

Dtc c1281/81 can be detected when the master cylinder pressure sensor sends a master cylinder pressure signal or test mode ends. Dtc c1281/81 is output only in test mode.

When replacing the abs and traction actuator, perform zero point calibration (see page bc-24).

1. 1
   Read value of intelligent tester (stop light switch)
2. 2
   Check the data list for proper functioning of the stop light switch.

   

1. 1
   Read value of intelligent tester (master cylinder pressure sensor)
2. 2
   Check the data list for proper functioning of the master cylinder pressure sensor.

   

1. 1
   Reconfirm dtc
2. 2
   Clear the dtc(s) (see page bc-47).
3. 3
   Drive the vehicle at a speed of 30 km/h or more and perform a braking test (decelerate the vehicle by depressing the brake pedal).
4. 4
   Check if the same dtc(s) is recorded (see page bc-47).

Result