C0200
BRAKE CONTROL: ANTI-LOCK BRAKE SYSTEM (for Sedan): C0200/31: Right Front Wheel Speed Sensor Signal
DTC C0200/31 - Right Front Wheel Speed Sensor Signal
DTC C0205/32 - Left Front Wheel Speed Sensor Signal
DTC C1235/35 - Foreign Object is Attached on Tip of Front Speed Sensor RH
DTC C1236/36 - Foreign Object is Attached on Tip of Front Speed Sensor LH
DTC C1271/71 - Low Output Signal of Front Speed Sensor RH (Test Mode DTC)
DTC C1272/72 - Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
DTC C1275/75 - Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)
DTC C1276/76 - Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)
DESCRIPTION
The speed sensors detect the wheel speeds and send appropriate signals to the skid control ECU.
Speed sensor rotors have rows of alternating N and S magnetic poles, and their magnetic fields change as the rotors turn.
The speed sensors detect those magnetic changes and send pulse signals to the skid control ECU. The ECU monitors the wheel speeds through these pulse signals to control the ABS control system.
HINT:
- DTCs C0200/31 and C1235/35 relate to the front speed sensor RH.
- DTCs C0205/32 and C1236/36 relate to the front speed sensor LH.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTE: Check the speed sensor signal in test mode after cleaning or replacement Test Mode Procedure.
PROCEDURE
1. CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the tester on.
(d) Using the Techstream, check for any momentary interruption in the wire harness and connector of the speed sensor.
Select the following menu items: Chassis / ABS/VSC/TRAC / Data List.
DATA LIST: ABS
OK:
There are no momentary interruptions.
HINT: Perform the above inspection before removing the sensor and connector.
NG -- CHECK IF SKID CONTROL ECU AND FRONT SPEED SENSOR CONNECTORS ARE SECURELY CONNECTED
OK -- Continue to next step.
2. READ VALUE USING DATA LIST (FRONT SPEED SENSOR)
(a) Connect the Techstream to the DLC3.
(b) Start the engine and drive the vehicle.
(c) Turn the tester on.
(d) Select the following menu items: Chassis / ABS/VSC/TRAC / Data List.
(e) Select the item "FR (FL) Wheel Speed" in the Data List and read the value displayed on the Techstream.
DATA LIST: ABS
(f) Check that there is no significant difference between the speed value displayed on the Techstream and the speed value displayed on the speedometer when driving the vehicle.
OK:
There is no significant difference in the displayed speed values.
HINT: There is a tolerance of +- 10% in the speedometer indication.
NG -- CHECK FRONT SPEED SENSOR INSTALLATION
OK -- Continue to next step.
3. PERFORM TEST MODE INSPECTION (SIGNAL CHECK)
(a) Perform a TEST MODE inspection and check for DTCs Test Mode Procedure.
OK:
No DTC output.
NG -- CHECK FRONT SPEED SENSOR INSTALLATION
OK -- Continue to next step.
4. RECONFIRM DTC
(a) Clear the DTC(s) ABS (Antilock Brake System) (for Sedan).
(b) Start the engine.
(c) Drive the vehicle at a speed of 12 mph (20 km/h) or more for at least 60 seconds.
(d) Check if the same DTC(s) is output ABS (Antilock Brake System) (for Sedan).
Result:
B -- REPLACE FRONT SPEED SENSOR
A -- CHECK FOR INTERMITTENT PROBLEMS
5. CHECK IF SKID CONTROL ECU AND FRONT SPEED SENSOR CONNECTORS ARE SECURELY CONNECTED
(a) Check if the skid control ECU and the front speed sensor connectors are securely connected.
NEXT -- Continue to next step.
6. RECONFIRM DTC
(a) Clear the DTC(s) ABS (Antilock Brake System) (for Sedan).
(b) Start the engine.
(c) Drive the vehicle at a speed of 12 mph (20 km/h) or more for at least 60 seconds.
(d) Check if the same DTC(s) is output ABS (Antilock Brake System) (for Sedan).
Result:
B -- END
A -- Continue to next step.
7. CHECK FRONT SPEED SENSOR INSTALLATION
(a) Check that the front speed sensor installation.
OK:
There is no gap between the sensor and front steering knuckle.
The installation bolt is tightened properly.
Torque: 8.5 Nm (87 kgf-cm, 75 in-lbf)
HINT: If the installation portion of the sensor is dirty, clean it and reinstall the sensor.
NG -- TIGHTEN BOLT PROPERLY OR REPLACE FRONT SPEED SENSOR
OK -- Continue to next step.
8. CHECK SPEED SENSOR TIP
(a) Remove the speed sensor Removal.
(b) Check the sensor tip.
OK:
No scratches or foreign matter on the sensor tip.
NG -- CLEAN OR REPLACE SPEED SENSOR
OK -- Continue to next step.
9. INSPECT FRONT SPEED SENSOR
(a) Install the front speed sensor.
(b) Disconnect the front speed sensor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance (RH):
Standard resistance (LH):
NG -- REPLACE FRONT SPEED SENSOR
OK -- CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - FRONT SPEED SENSOR)
10. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - FRONT SPEED SENSOR)
(a) Disconnect the skid control ECU connector.
(b) Disconnect the front speed sensor connector.
(c) Measure the resistance.
Standard resistance (LH):
Standard resistance (RH):
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
11. INSPECT FRONT SPEED SENSOR (INPUT VOLTAGE)
(a) Disconnect the speed sensor connector.
(b) Turn the ignition switch to ON.
(c) Measure the voltage.
Standard voltage:
NG -- REPLACE BRAKE ACTUATOR
OK -- Continue to next step.
12. REPLACE FRONT SPEED SENSOR
(a) Replace the front speed sensor Removal.
NEXT -- Continue to next step.
13. RECONFIRM DTC
(a) Clear the DTC(s) ABS (Antilock Brake System) (for Sedan).
(b) Start the engine.
(c) Drive the vehicle at a speed of 12 mph (20 km/h) or more for at least 60 seconds.
(d) Check if the same DTC(s) is output ABS (Antilock Brake System) (for Sedan).
Result:
B -- END
A -- Continue to next step.
14. REPLACE FRONT AXLE HUB BEARING
(a) Replace the front axle hub bearing Disassembly.
HINT: The front speed sensor rotor is incorporated into the front axle hub bearing.
NEXT -- Continue to next step.
15. RECONFIRM DTC
(a) Clear the DTC(s) ABS (Antilock Brake System) (for Sedan).
(b) Start the engine.
(c) Drive the vehicle at a speed of 12 mph (20 km/h) or more for at least 60 seconds.
(d) Check if the same DTC(s) is output ABS (Antilock Brake System) (for Sedan).
Result:
B -- REPLACE BRAKE ACTUATOR
A -- END