Dtc C1413 Front Speed Sensor Rh Output Malfunction

Brake. Yaris. Ncp93, 131
Brake Control Dynamic Control Systems. Yaris. Ncp93, 131

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING TECHSTREAM (MOMENTARY INTERRUPTION)

READ VALUE USING TECHSTREAM (FRONT SPEED SENSOR)

PERFORM TEST MODE (SIGNAL CHECK)

RECONFIRM DTC

CHECK FRONT SPEED SENSOR INSTALLATION

INSPECT FRONT SPEED SENSOR TIP

INSPECT FRONT AXLE HUB BEARING

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - FRONT SPEED SENSOR)

CHECK BRAKE ACTUATOR ASSEMBLY (SENSOR INPUT)

RECONFIRM DTC

REPLACE FRONT SPEED SENSOR

RECONFIRM DTC

REPLACE FRONT AXLE HUB BEARING

RECONFIRM DTC

DTC C1413 Front Speed Sensor RH Output Malfunction

DTC C1275 Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)

DTC C1276 Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)

DTC C1414 Front Speed Sensor LH Output Malfunction


DESCRIPTION

Refer to DTCs C1401 and C1402 (YARIS_NCP93 RM000000XI90IUX.html).

DTC NO.
DTC Detection Condition
Trouble Area
C1413
C1414
Any of the following is detected:
  1. An open in the sensor signal circuit of a malfunctioning area occurs 255 times or more.
  2. At a vehicle speed of 20 km/h (12 mph) or more, noise occurs in the sensor signals of a malfunctioning wheel 75 times or more within 5 seconds.
  3. At a vehicle speed of 10 km/h (6 mph) or more, noise occurs once per rotor rotation for 15 seconds or more.
  1. Front speed sensor RH/LH
  2. Harness or connector
  3. Front axle hub bearing RH/LH (speed sensor rotor)
  4. Brake actuator assembly (skid control ECU)
C1275
C1276
Detected only during Test Mode.
Front axle hub bearing RH/LH (speed sensor rotor)
HINT:
  1. DTC C1413 and C1275 are for the front speed sensor RH.
  2. DTC C1414 and C1276 are for the front speed sensor LH.

WIRING DIAGRAM

Refer to DTCs C1405 and C1406 (YARIS_NCP93 RM000000XI90IVX_02.html).

INSPECTION PROCEDURE

NOTICE:
Check the speed sensor signal after cleaning or replacement (YARIS_NCP93 RM000000XHT08HX.html).
1.READ VALUE USING TECHSTREAM (MOMENTARY INTERRUPTION)

  1. Using the Techstream, check for any momentary interruption in the wire harness and connector corresponding to the DTC (YARIS_NCP93 RM000000XHS09XX.html).

    ABS/VSC/TRAC
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    FR Speed Open
    		FR speed sensor open detection / Error or Normal
    		Error: Momentary interruption
    Normal: Normal
    		-
    FL Speed Open
    		FL speed sensor open detection / Error or Normal
    		Error: Momentary interruption
    Normal: Normal
    		-
    OK:
    There are no momentary interruptions.
    HINT:
    Perform the above inspection before removing the sensor and connector.


NG
Go to step 8
OK


2.READ VALUE USING TECHSTREAM (FRONT SPEED SENSOR)

  1. Turn the ignition switch off.

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.

  1. According to the display on the Techstream, read the Data List.

    ABS/VSC/TRAC
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    FR Wheel Speed
    		FR wheel speed sensor reading / min.: 0 km/h (0 mph), max.: 326 km/h (202 mph)
    		Vehicle stopped:
    0 km/h
    		When driving at constant speed: No large fluctuations
    FL Wheel Speed
    		FL wheel speed sensor reading /min.: 0 km/h (0 mph), max.: 326 km/h (202 mph)
    		Vehicle stopped:
    0 km/h
    		When driving at constant speed: No large fluctuations

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

    HINT:
    Factors that affect the indicated vehicle speed include tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using a speedometer tester (calibrated chassis dynamometer). For details about testing and the margin of error, see the reference chart.
    OK:
    The speed value output from the speed sensor displayed on the Techstream is the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).
    HINT:
    If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (YARIS_NCP93 RM000000XHN0AWX.html).


NG
Go to step 5
OK


3.PERFORM TEST MODE (SIGNAL CHECK)

  1. Turn the ignition switch off.

  1. Perform the sensor check in the Test Mode procedure (YARIS_NCP93 RM000000XHT08HX.html).

    OK:
    All Test Mode DTCs are cleared.


NG
Go to step 5
OK


4.RECONFIRM DTC

  1. Clear the DTCs (YARIS_NCP93 RM000000XHV0BPX.html).

  1. Start the engine.

  1. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

  1. Check if the same DTC is recorded (YARIS_NCP93 RM000000XHV0BPX.html).

    Result
    Result
    		Proceed to
    DTCs (C1413 and C1414) are not output
    		A
    DTCs (C1413 and/or C1414) 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 (YARIS_NCP93 RM000000XHN0AWX.html).


B
Go to step 11
A

CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (YARIS_NCP93 RM000000UZ309WX.html)

5.CHECK FRONT SPEED SENSOR INSTALLATION

  1. Turn the ignition switch off.



    Yaris. Ncp93, 131.Brake Control Dynamic Control Systems.Anti-Lock Brake System (For Sedan). Dtc C1413 Front Speed Sensor Rh Output Malfunction

  1. Check the speed sensor installation.

    OK:
    There is no clearance between the sensor and the front steering knuckle.
    The installation bolt is tightened properly.
    Torque:
    8.5 N*m (87 kgf*cm, 75 in.*lbf)
    Text in Illustration
    *1
    		Front Speed Sensor
    *a
    		No clearance
    *b
    		OK
    *c
    		NG


NG
INSTALL FRONT SPEED SENSOR CORRECTLY (YARIS_NCP93 RM000001BXU01HX.html)
OK


6.INSPECT FRONT SPEED SENSOR TIP

  1. Remove the front speed sensor (YARIS_NCP93 RM000001BXX01CX.html).

  1. Check the speed sensor tip.

    OK:
    No scratches, oil, or foreign matter on the sensor tip.
    NOTICE:
    If no damage to the speed sensor tip is found during this inspection, do not replace the speed sensor.

  1. Reinstall the front speed sensor (YARIS_NCP93 RM000001BXU01HX.html).



NG
CLEAN OR REPLACE FRONT SPEED SENSOR
OK


7.INSPECT FRONT AXLE HUB BEARING

  1. Remove the front axle hub bearing (YARIS_NCP93 RM000001IWM00OX.html).

  1. Check the speed sensor rotor.

    OK:
    No scratches, oil, or foreign matter on the rotors.
    HINT:
    If the front speed sensor rotor needs to be replaced, replace it together with the front axle hub bearing.

  1. Reinstall the front axle hub assembly (YARIS_NCP93 RM000001IWK00PX.html).



NG
CLEAN OR REPLACE FRONT AXLE HUB BEARING
OK


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

  1. Turn the ignition switch off.

  1. Make sure that there is no looseness at the locking part and the connecting part of the connectors.

  1. Disconnect the A15 brake actuator assembly (skid control ECU) connector and the A7 and/or A11 front speed sensor connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A15-7 (FR+) - A7-2 (FR+)
    		Always
    		Below 1 Ω
    A15-6 (FR-) - A7-1 (FR-)
    		Always
    		Below 1 Ω
    A15-19 (FL+) - A11-2 (FL+)
    		Always
    		Below 1 Ω
    A15-18 (FL-) - A11-1 (FL-)
    		Always
    		Below 1 Ω
    A15-7 (FR+) - Body ground
    		Always
    		10 kΩ or higher
    A15-6 (FR-) - Body ground
    		Always
    		10 kΩ or higher
    A15-19 (FL+) - Body ground
    		Always
    		10 kΩ or higher
    A15-18 (FL-) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the A15 brake actuator assembly (skid control ECU) connector and the front speed sensor connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


9.CHECK BRAKE ACTUATOR ASSEMBLY (SENSOR INPUT)


    Yaris. Ncp93, 131.Brake Control Dynamic Control Systems.Anti-Lock Brake System (For Sedan). Dtc C1413 Front Speed Sensor Rh Output Malfunction

  1. Turn the ignition switch to ON.

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

    Standard Voltage:
    RH:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A7-2 (FR+) - Body ground
    		Ignition switch ON
    		8 to 14 V
    LH:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A11-2 (FL+) - Body ground
    		Ignition switch ON
    		8 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Front Speed Sensor)
    *b
    		RH
    *c
    		LH
    HINT:
    If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (YARIS_NCP93 RM000000XHN0AWX.html).


NG
REPLACE BRAKE ACTUATOR ASSEMBLY (YARIS_NCP93 RM000001BXP02FX.html)
OK


10.RECONFIRM DTC

  1. Clear the DTCs (YARIS_NCP93 RM000000XHV0BPX.html).

  1. Start the engine.

  1. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

  1. Check if the same DTC is recorded (YARIS_NCP93 RM000000XHV0BPX.html).

    Result
    Result
    		Proceed to
    DTCs (C1413 and C1414) are not output
    		A
    DTCs (C1413 and/or C1414) 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 (YARIS_NCP93 RM000000XHN0AWX.html).


B
Go to step 11
A

CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (YARIS_NCP93 RM000000UZ309WX.html)

11.REPLACE FRONT SPEED SENSOR

  1. Turn the ignition switch off.

  1. Replace the front speed sensor (YARIS_NCP93 RM000001BXX01CX.html).


NEXT


12.RECONFIRM DTC

  1. Clear the DTCs (YARIS_NCP93 RM000000XHV0BPX.html).

  1. Start the engine.

  1. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

  1. Check if the same DTC is recorded (YARIS_NCP93 RM000000XHV0BPX.html).

    Result
    Result
    		Proceed to
    DTCs (C1413 and C1414) are not output
    		A
    DTCs (C1413 and/or C1414) 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 (YARIS_NCP93 RM000000XHN0AWX.html).


B
Go to step 13
A

END

13.REPLACE FRONT AXLE HUB BEARING

  1. Remove the front axle hub bearing (YARIS_NCP93 RM000001IWM00OX.html).

    HINT:
    If the front speed sensor rotor needs to be replaced, replace it together with the front axle hub bearing.

NEXT


14.RECONFIRM DTC

  1. Clear the DTCs (YARIS_NCP93 RM000000XHV0BPX.html).

  1. Start the engine.

  1. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

  1. Check if the same DTC is recorded (YARIS_NCP93 RM000000XHV0BPX.html).

    Result
    Result
    		Proceed to
    DTCs (C1413 and C1414) are not output
    		A
    DTCs (C1413 and/or C1414) 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 (YARIS_NCP93 RM000000XHN0AWX.html).


B
REPLACE BRAKE ACTUATOR ASSEMBLY (YARIS_NCP93 RM000001BXP02FX.html)
A

END