C0210/33

DESCRIPTION

The speed sensor detects 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 Element). The speed sensor rotor, which consists of 48 sets of N and S poles that are 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 2 MREs. Upon receiving this signal, the sensor IC outputs a forward or backward wave to the ECU.
DTCs C1273/73 and C1274/74 can be deleted when the speed sensor sends a vehicle speed signal or the Test Mode ends. DTCs C1273/73 and C1274/74 are output only in the Test Mode.

DTC No.	DTC Detection Condition	Trouble Area
C0210/33 C0215/34	When any of the following is detected: At a vehicle speed of 6 mph (10 km/h) or more, an open or short in the sensor signal circuit continues for 1 second or more. Momentary interruption of the sensor signal from the abnormal wheel occurs 255 times or more. An open in the speed sensor signal circuit continues for 0.5 seconds or more. When the vehicle is driven in reverse at the speed of 1.8 mph (3 km/h) 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). At a vehicle speed of 6 mph (10 km/h) or more, the vehicle speed sensor output drops by 50 % for 5 seconds. At a vehicle speed of 6 mph (10 km/h) or more, the direction of wheel rotation changes 7 times in 0.006 seconds while the engine switch is on (IG). At a vehicle speed of 18 mph (30 km/h) or more, one wheel direction is different from the other 3 wheels' for 1 second. At a vehicle speed of 60 mph (100 km/h), a reverse signal is output for 1 second or more. At a vehicle speed of 18 mph (30 km/h) 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. With the IG1 terminal voltage 9.5 V or more, the sensor power supply voltage decreases for 0.5 seconds or more. At a vehicle speed of 6 mph (10 km/h) or more, a condition where the speed of one wheel continues to be 1/7 or less of the other wheels for 15 seconds or more.	Rear speed sensor RH/LH Speed sensor circuit Speed sensor rotor Sensor installation Brake actuator assembly (Skid control ECU)

HINT:

1. DTC C0210/33 is for the rear speed sensor RH.
   
2. DTC C0205/32 is for the rear speed sensor LH.
   

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

When replacing the brake actuator assembly, perform zero point calibration (Click here).

1. CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)

1. Using the intelligent tester, check for any momentary interruption in the wire harness and connector corresponding to a DTC (Click here).

   ABS / VSC: 

   Item (Display)	Measurement Item / Range (Display)	Normal Condition
   RR Speed Open	RR speed sensor open detection / ERROR or NORMAL	ERROR: Momentary interruption NORMAL: Normal
   RL Speed Open	RL speed sensor open detection / ERROR or NORMAL	ERROR: Momentary interruption NORMAL: Normal

   
   

   Result:

   Condition	Proceed to
   There are no momentary interruptions	A
   There are momentary interruptions	B
   There is a constant open circuit	C

   HINT:

   Perform the above inspection before removing the sensor and connector.

B	Go to step 13
C	Go to step 5

A

2. READ VALUE OF INTELLIGENT TESTER (REAR SPEED SENSOR)

1. Connect the intelligent tester to the DLC3.

2. Start the engine.

3. Select the Data List mode on the intelligent tester.

   ABS / VSC: 

   Item (Display)	Measurement Item / Range (Display)	Normal Condition
   RL Wheel Speed	RL wheel speed sensor reading / min.: 0 mph (0 km/h), max.: 202 mph (326 km/h)	Actual wheel speed
   RR Wheel Speed	RR wheel speed sensor reading / min.: 0 mph (0 km/h), max.: 202 mph (326 km/h)	Actual wheel speed

4. Check that there is no difference between the speed value output from the speed sensor displayed on the intelligent tester and the speed value displayed on the speedometer when driving the vehicle.

   OK:

   The speed value output from the speed sensor displayed on the intelligent tester is the same as the actual vehicle speed.
   

   ABS / VSC: 

   Item (Display)	Measurement Item / Range (Display)	Normal Condition
   RR Wheel Direction	RR wheel direction / FORWARD or BACK	FORWARD: Forward BACK: Back
   RL Wheel Direction	RL wheel direction / FORWARD or BACK	FORWARD: Forward BACK: Back

5. Check that the sensor signal conforms to the wheel direction.

   OK:

   The wheel direction is displayed.
   

NG	Go to step 5

OK

3. PERFORM TEST MODE (SIGNAL CHECK)

1. Perform sensor signal check in Test Mode Procedure (Click here).

   OK:

   All Test Mode DTCs are erased.
   

NG	Go to step 5

OK

4. RECONFIRM DTC

1. Clear the DTC (Click here).

2. Start the engine.

3. Drive the vehicle at the speed of 20 mph (32 km/h) or more for at least 60 seconds.

4. Check if the same DTC is recorded (Click here).
   

   Result:

   Condition	Proceed to
   DTCs (C0210/33 and/or C0215/34) are not output	A
   DTCs (C0210/33 and/or C0215/34) are output	B

   HINT:

   If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (Click here).

B	Go to step 11

A
USE SIMULATION METHOD TO CHECK

5. CHECK REAR SPEED SENSOR INSTALLATION

1. Turn the engine switch off.

2. Check the speed sensor installation.

   OK:

   There is no clearance between the sensor and rear axle carrier.
   

   The installation bolt is tightened properly.
   

   Torque:

   8.5 N*m (87 kgf*cm, 75 in.*lbf)
   

   NOTICE:

   Check the speed sensor signal after replacement (Click here).

NG	INSTALL REAR SPEED SENSOR CORRECTLY

OK

6. CHECK REAR SPEED SENSOR TIP

1. Remove the rear speed sensor (Click here).

2. Check the speed sensor tip.

   OK:

   No scratches or foreign matter on the sensor tip.
   

   NOTICE:

   Check the speed sensor signal after cleaning/replacement (Click here).

NG	CLEAN OR REPLACE REAR SPEED SENSOR

OK

7. CHECK HARNESS AND CONNECTOR (SKID CONTROL SENSOR WIRE)

1. Install the rear speed sensor.

2. Disconnect the skid control sensor wire.

3. Measure the resistance according to the value(s) in the table below.
   

   Standard resistance:

   RH:

   Tester Connection	Condition	Specified Condition
   X1 ("A"-2) - X1 ("B"-4)	Always	Below 1 Ω
   X1 ("A"-2) - X1 ("B"-5)	Always	10 kΩ or higher
   X1 ("A"-2) - Body ground	Always	10 kΩ or higher
   X1 ("A"-1) - X1 ("B"-5)	Always	Below 1 Ω
   X1 ("A"-1) - X1 ("B"-4)	Always	10 kΩ or higher
   X1 ("A"-1) - Body ground	Always	10 kΩ or higher

   LH:

   Tester Connection	Condition	Specified Condition
   Y1 ("A"-2) - Y1 ("B"-4)	Always	Below 1 Ω
   Y1 ("A"-2) - Y1 ("B"-5)	Always	10 kΩ or higher
   Y1 ("A"-2) - Body ground	Always	10 kΩ or higher
   Y1 ("A"-1) - Y1 ("B"-5)	Always	Below 1 Ω
   Y1 ("A"-1) - Y1 ("B"-4)	Always	10 kΩ or higher
   Y1 ("A"-1) - Body ground	Always	10 kΩ or higher

   NOTICE:

   Check the speed sensor signal after replacement (Click here).

NG	REPLACE SKID CONTROL SENSOR WIRE

OK

8. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - REAR SPEED SENSOR)

1. Reconnect the skid control sensor wire.

2. Disconnect the skid control ECU connector and the rear speed sensor connector.

3. Measure the resistance according to the value(s) in the table below.
   

   Standard resistance:

   RH:

   Tester Connection	Condition	Specified Condition
   A14-5 (RR+) - X1-2 (RR+)	Always	Below 1 Ω
   A14-5 (RR+) - Body ground	Always	10 kΩ or higher
   A14-19 (RR-) - X1-1 (RR-)	Always	Below 1 Ω
   A14-19 (RR-) - Body ground	Always	10 kΩ or higher

   LH:

   Tester Connection	Condition	Specified Condition
   A14-20 (RL+) - Y1-2 (RL+)	Always	Below 1 Ω
   A14-20 (RL+) - Body ground	Always	10 kΩ or higher
   A14-6 (RL-) - Y1-1 (RL-)	Always	Below 1 Ω
   A14-6 (RL-) - Body ground	Always	10 kΩ or higher

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

9. INSPECT SKID CONTROL ECU (SENSOR INPUT)

1. Reconnect the skid control ECU connector.

2. Turn the engine switch on (IG).

3. Measure the voltage according to the value(s) in the table below.
   

   Standard voltage:

   RH:

   Tester Connection	Condition	Specified Condition
   X1-2 (RR+) - Body ground	Engine switch on (IG)	7.5 to 14 V

   LH:

   Tester Connection	Condition	Specified Condition
   Y1-2 (RL+) - Body ground	Engine switch on (IG)	7.5 to 14 V

NG	REPLACE BRAKE ACTUATOR ASSEMBLY

OK

10. RECONFIRM DTC

1. Turn the engine switch off.

2. Reconnect the rear speed sensor connector.

3. Clear the DTC (Click here).

4. Start the engine.

5. Drive the vehicle at the speed of 20 mph (32 km/h) or more for at least 60 seconds.

6. Check if the same DTC is recorded (Click here).
   

   Result:

   Condition	Proceed to
   DTCs (C0210/33 and/or C0215/34) are output	A
   DTCs (C0210/33 and/or C0215/34) are not output	B

   HINT:

   If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (Click here).

B	USE SIMULATION METHOD TO CHECK

A

11. REPLACE REAR SPEED SENSOR

1. Turn the engine switch off.

2. Replace the rear speed sensor (Click here).

   NOTICE:

   Check the speed sensor signal after replacement (Click here).

NEXT

12. RECONFIRM DTC

1. Clear the DTC (Click here).

2. Start the engine.

3. Drive the vehicle at the speed of 20 mph (32 km/h) or more for at least 60 seconds.

4. Check if the same DTC is recorded (Click here).
   

   Result:

   Condition	Proceed to
   DTCs (C0210/33 and/or C0215/34) are output	A
   DTCs (C0210/33 and/or C0215/34) are not output	B

   HINT:

   If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (Click here).

B	END

A
REPLACE BRAKE ACTUATOR ASSEMBLY

13. REPAIR OR REPLACE HARNESS OR CONNECTOR (SKID CONTROL ECU - REAR SPEED SENSOR)

1. Turn the engine switch off.

2. Repair or replace the harness or connector.

3. Check for any momentary interruption between the skid control ECU and rear speed sensor (Click here).

4. Check that there is no momentary interruption.

NEXT

14. RECONFIRM DTC

1. Clear the DTC (Click here).

2. Start the engine.

3. Drive the vehicle at the speed of 20 mph (32 km/h) or more for at least 60 seconds.

4. Check if the same DTC is recorded (Click here).
   

   Result:

   Condition	Proceed to
   DTCs (C0210/33 and/or C0215/34) are not output	A
   DTCs (C0210/33 and/or C0215/34) are output	B

   HINT:

   If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (Click here).

B	Go to step 2

A
END