Vehicle Stability Control System (For ADVICS Made)

DTC C1271/71 Low Output Signal of Front Speed Sensor RH (Test Mode DTC)

DESCRIPTION

DTC Detection Condition:

The speed sensors detect wheel speed and transmit the signals to the ECU. These signals are used for control of the ABS control system. Each of the front and rear rotors have 48 serrations.




When the rotors rotate, the magnetic field generated by the permanent magnet in the speed sensor induces an AC voltage.

Since the frequency of this AC voltage changes in direct proportion to the speed of the rotor, the frequency is used by the ECU to detect the speed of each wheel.

DTCs C1271/71 and C1272/72 can be deleted when the speed sensor sends a wheel speed signal or the Test Mode ends. DTCs C1271/71 and C1272/72 are output only in the Test Mode.

HINT:
- DTC C0200/31 is for the front speed sensor RH.
- DTC C0205/32 is for the front speed sensor LH.

Wiring Diagram:

Step 1:

Step 2(continued)-4:

Step 4(continued)-6:

Step 7:

Step 8:

Step 9-10:

Step 10(continued)-12:

INSPECTION PROCEDURE

NOTE: When replacing the brake actuator assembly, perform zero point calibration. Calibration