LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2008 >> IS F >> Repair and Diagnosis (Single Page) >> Brakes >> Brakes Control Systems >> Brake Control / Dynamic Control Systems >> Vehicle Stability Control System >> DTC C0210/33 Rear Speed Sensor RH Circuit; DTC C0215/34 Rear Speed Sensor LH Circuit; DTC C1273/73 Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74 Low Output Signal of Rear Speed Sensor LH (Test Mode DTC) >> Description

DTC C0210/33 Rear Speed Sensor RH Circuit; DTC C0215/34 Rear Speed Sensor LH Circuit; DTC C1273/73 Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74 Low Output Signal of Rear Speed Sensor LH (Test Mode DTC): Description

The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU These signals are used for the ABS control system. This speed sensor contains a sensor IC, which consists of 2 MREs (Magnetic Resistance Elements). The speed sensor rotor, which consists of 48 sets of N and S poles arranged in a circle, is integrated with the inner race of the hub bearing

To detect the rotation direction, the output waves are used to determine the relationship of the pulses that are generated by the 2 MREs Upon receiving this signal, the sensor IC outputs a forward or backward waveform to the ECU.

DTCs C1273/73 and C1274/74 will be deleted when the speed sensor sends a vehicle speed signal or when Test Mode ends DTCs C1273/73 and C1274/74 are output only in Test Mode

Fig 1: Rear Speed Sensor Circuit Diagram
G05752565Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC DETECTION CONDITION

DTC Code DTC Detection Condition Trouble Area
C0210/33
C0215/34		 Any of the following is detected
  1. At a vehicle speed of 10 km/h (6 mph) or more, an open or short in the sensor signal circuit continues for 1 second or more
  2. Momentary interruption of the sensor signal from the abnormal wheel occurs 255 times or more
  3. An open in the speed sensor signal circuit continues for 0 5 seconds or more
  4. When the vehicle is driven in reverse at a speed of 3 km/h (1 8 mph) or more and 3 of the wheel sensors detect the reverse signal, the other sensor detects a high frequency pulse 75 times while the engine switch is on (IG)
  5. At a vehicle speed of 10 km/h (6 mph) or more, the vehicle speed sensor output drops by 50% for 5 seconds
  6. At a vehicle speed of 10 km/h (6 mph) or more, the direction of wheel rotation changes 7 times in 0 006 seconds while the engine switch is on (IG)
  7. At a vehicle speed of 30 km/h (18 mph) or more, one wheel direction is different from the other 3 wheels for 1 second
  8. At a vehicle speed of 100 km/h (60 mph), a reverse signal is output for 1 second or more
  9. At a vehicle speed of 30 km/h (18 mph) or more, the rotation direction of the one of the wheels is not detected normally and the rotation direction of the other 3 wheels is not the same for 1 second
  10. With the IG1 terminal voltage 9 5 V or more, the sensor power supply voltage decreases for 0 5 seconds or more
  • Rear speed sensor RH/LH
  • Speed sensor circuit
  • Speed sensor rotor
  • Sensor installation
  • Skid control ECU
C1273/73
C1274/74		 Detected only during Test Mode
  • Rear speed sensor RH/LH
  • Sensor installation
  • Speed sensor rotor

HINT

scientia non olet · About LEMON Manuals