C0215

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C0210/33: Rear Speed Sensor RH Circuit

DTC C0210/33 - Rear Speed Sensor RH Circuit

DTC C0215/34 - Rear Speed Sensor LH Circuit

DTC C1238/38 - Foreign Object is Attached on Tip of Rear Speed Sensor RH

DTC C1239/39 - Foreign Object is Attached on Tip of Rear Speed Sensor LH

DESCRIPTION

The speed sensor detects wheel speed and sends the appropriate signals to the ECU. These signals are used to control the ABS, BA, TRAC, A-TRAC, VSC, downhill assist control and hill-start assist control control systems. 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 skid control ECU.

HINT:
- DTC C0210/33 and C1238/38 are for the rear speed sensor RH.
- DTC C0215/34 and C1239/39 are for the rear speed sensor LH.

WIRING DIAGRAM

INSPECTION PROCEDURE
NOTE:
When replacing the master cylinder solenoid, perform zero point calibration Calibration.

PROCEDURE

1. READ VALUE USING TECHSTREAM (MOMENTARY INTERRUPTION OF REAR SPEED SENSOR)
(a) Connect Techstream to the DLC3.
(b) Turn the ignition switch to the ON position and push Techstream main switch ON.
(c) Select "Data List" mode on Techstream.

ABS/VSC/TRAC

(d) Check for any momentary interruption in the wire harness and connector corresponding to a DTC Check for Intermittent Problems.
OK:
There are no momentary interruptions.
HINT: Perform the above inspection before removing the sensor and connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (REAR SPEED SENSOR CIRCUIT)
OK -- Continue to next step.
2. READ VALUE USING TECHSTREAM (REAR SPEED SENSOR)

ABS/VSC/TRAC

(a) Check that there is no difference between the speed value output from the speed sensor displayed on Techstream and the speed value displayed on the speedometer when driving the vehicle.
OK:
The speed value output from the speed sensor displayed on Techstream is the same as the actual vehicle speed.
NG -- INSPECT REAR SPEED SENSOR INSTALLATION
OK -- Continue to next step.
3. PERFORM TEST MODE (SIGNAL CHECK)
(a) Check if test mode (signal check) DTCs are detected.
Result:

B -- RECONFIRM DTC
A -- Continue to next step.
4. INSPECT REAR SPEED SENSOR INSTALLATION

(a) Check the speed sensor installation.
OK:
The installation nut is tightened properly.
There is no clearance between the sensor and the rear axle.
Torque: 8.3 Nm (85 kgf-cm, 73 in-lbf)
NOTE:
Check the speed sensor signal after replacement Test Mode Procedure.

NG -- INSTALL REAR SPEED SENSOR CORRECTLY
OK -- Continue to next step.
5. INSPECT SPEED SENSOR TIP
(a) Remove the rear speed sensor Removal.
(b) Check the sensor tip.
OK:
No scratches or foreign matter on the sensor tip.
NOTE:
Check the speed sensor signal after cleaning/replacement Test Mode Procedure.

NG -- CLEAN OR REPLACE REAR SPEED SENSOR
OK -- Continue to next step.
6. INSPECT REAR SPEED SENSOR

(a) Install the rear speed sensor.
(b) Turn the ignition switch off.
(c) Disconnect the rear speed sensor connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard resistance:
RH

NG -- REPLACE REAR SPEED SENSOR
OK -- Continue to next step.
7. INSPECT SKID CONTROL SENSOR WIRE

(a) Disconnect the skid control sensor wire.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
RH

NOTE:
Check the speed sensor signal after replacement Test Mode Procedure.

NG -- REPLACE SKID CONTROL SENSOR WIRE
OK -- Continue to next step.
8. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - REAR SPEED SENSOR)

(a) Disconnect the skid control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
RH

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
9. INSPECT MASTER CYLINDER SOLENOID (SKID CONTROL ECU OUTPUT VOLTAGE)

(a) Reconnect the skid control ECU connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:
RH

NG -- REPLACE MASTER CYLINDER SOLENOID
OK -- Continue to next step.
10. RECONFIRM DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Drive the vehicle at a speed of approximately 32 km/h (20 mph) or more for 60 seconds or more.
(c) Check if the same pending DTCs are detected Reading and Clearing Diagnostic Trouble Codes.
HINT: Reinstall the sensors, connectors, etc. and restore the previous vehicle conditions before rechecking for DTCs.

Result:

C -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
B -- END
A -- Continue to next step.
11. REPLACE REAR SPEED SENSOR
(a) Replace the rear speed sensor Removal.
NOTE:
Check the speed sensor signal after replacement Test Mode Procedure.

NEXT -- Continue to next step.
12. RECONFIRM DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Drive the vehicle at a speed of approximately 32 km/h (20 mph) or more for 60 seconds or more.
(c) Check if the same pending DTCs are detected Reading and Clearing Diagnostic Trouble Codes.
HINT: Reinstall the sensors, connectors, etc. and restore the previous vehicle conditions before rechecking for DTCs.

Result:

B -- END
A -- Continue to next step.
13. INSPECT SPEED SENSOR ROTOR
(a) Remove the rear axle bearing assembly Removal.
(b) Check the sensor rotor.
OK:
No scratches, oil, or foreign matter on the rotors.
NOTE:
Check the speed sensor signal after cleaning/replacement Test Mode Procedure.

NG -- CLEAN OR REPLACE REAR AXLE BEARING ASSEMBLY (SPEED SENSOR ROTOR)
OK -- REPLACE MASTER CYLINDER SOLENOID