Dtc C0200/31 Front Speed Sensor Rh Circuit

Brake. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Brake Control Dynamic Control Systems. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)

READ VALUE USING INTELLIGENT TESTER (FR/FL WHEEL SPEED)

PERFORM TEST MODE (SIGNAL CHECK)

RECONFIRM DTC

CHECK THAT SKID CONTROL ECU AND FRONT SPEED SENSOR CONNECTORS ARE SECURELY CONNECTED

RECONFIRM DTC

CHECK FRONT SPEED SENSOR INSTALLATION

INSPECT FRONT SPEED SENSOR TIP

INSPECT FRONT SPEED SENSOR

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

INSPECT FRONT SKID CONTROL ROTOR

REPLACE FRONT SPEED SENSOR

RECONFIRM DTC

DTC C0200/31 Front Speed Sensor RH Circuit

DTC C0205/32 Front Speed Sensor LH Circuit

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 (brake actuator assembly). These signals are used for control of the ABS.
Each of the front and rear rotors have 48 serrations. When the rotors rotate, the magnetic field generated by the permanent magnet in the speed sensor produces AC voltage. Since the frequency of this AC voltage changes in direct proportion to the speed of the rotor, the frequency is used by the skid control ECU (brake actuator assembly) to detect the speed of each wheel.

Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C0200/31 Front Speed Sensor Rh Circuit


DTC Code
DTC Detection Condition
Trouble Area
C0200/31
C0205/32
One of the following conditions is met:
  1. At a vehicle speed of 10 km/h (6 mph) or more, an open or short in the sensor signal circuit continues for 15 seconds or more.
  2. Momentary interruption of the sensor signal from the abnormal wheel occurs 7 times or more.
  3. An open in the speed sensor signal circuit continues for 0.5 seconds or more.
  1. Front speed sensor RH/LH
  2. Front speed sensor circuit
  3. Front skid control rotor RH/LH
  4. Sensor installation
  5. Skid control ECU (Brake actuator assembly)
C1235/35
C1236/36
At a vehicle speed of 20 km/h (12 mph) or more, condition that noise is included in speed sensor signal continues for 5 seconds or more.
  1. Front speed sensor RH/LH
  2. Front speed sensor circuit
  3. Sensor installation
C1271/71
C1272/72
Detected only during Test Mode.
  1. Front speed sensor RH/LH
  2. Sensor installation
  3. Front skid control rotor RH/LH
C1275/75
C1276/76
Detected only during Test Mode.
Front skid control rotor RH/LH
HINT:
  1. DTCs C0200/31, C1235/35, C1271/71 and C1275/75 are for the front speed sensor RH.
  2. DTCs C0205/32, C1236/36, C1272/72 and C1276/76 are for the front speed sensor LH.

WIRING DIAGRAM


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C0200/31 Front Speed Sensor Rh Circuit


INSPECTION PROCEDURE

NOTICE:
  1. Check the speed sensor signal after cleaning or replacement (HILUX_TGN26 RM000000XHT090X.html).
  2. Before disconnecting the connector, make sure that there are no problems with the connection.
  3. After disconnecting the connector, make sure that the connector case and terminals are not deformed or corroded.
1.CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)

  1. Using the intelligent tester, check for any momentary interruptions in the wire harness and connector corresponding to the DTC (HILUX_TGN26 RM000000XHS0AFX.html).

    ABS/VSC/TRC
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    FR Speed Open
    		Front speed sensor RH open circuit detection/ Opn_Det or Normal
    		Normal
    		-
    FL Speed Open
    		Front speed sensor LH open circuit detection/ Opn_Det or Normal
    		Normal
    		-
    OK:
    Normal (There are no momentary interruptions.)
    HINT:
    Perform the above inspection before removing the sensor and connector.


NG
Go to step 5
OK


2.READ VALUE USING INTELLIGENT TESTER (FR/FL WHEEL SPEED)

  1. Turn the ignition switch off.

  1. Connect the intelligent tester to the DLC3.

  1. Start the engine.

  1. Turn the intelligent tester on.

  1. Enter the following menus: Chassis / ABS/VSC/TRC / Data List, and then drive the vehicle.

    ABS/VSC/TRC
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    FR Wheel Speed
    		Front speed sensor RH reading/
    Min.: 0 km/h (0 mph)
    Max.: 326 km/h (202 mph)
    		Actual wheel speed
    		No large fluctuations when driving at a constant speed.
    FL Wheel Speed
    		Front speed sensor LH reading/
    Min.: 0 km/h (0 mph)
    Max.: 326 km/h (202 mph)
    		Actual wheel speed
    		No large fluctuations when driving at a constant speed.

  1. Check the speed value output from the speed sensor displayed on the intelligent tester.

    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 (HILUX_TGN26 RM000002Z4Q01WX.html).
    OK:
    The speed value output from the speed sensor displayed on the intelligent tester is the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).


NG
Go to step 7
OK


3.PERFORM TEST MODE (SIGNAL CHECK)

  1. Perform the sensor check in the Test Mode procedure (HILUX_TGN26 RM000000XHT090X.html).

    OK:
    All Test Mode DTCs are cleared.


NG
Go to step 7
OK


4.RECONFIRM DTC

  1. Clear the DTC (HILUX_TGN26 RM000000XHV0CFX.html).

  1. Turn the ignition switch off.

  1. Start the engine.

  1. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 60 seconds.

  1. Check if the same DTC is output (HILUX_TGN26 RM000000XHV0CFX.html).

    Result
    Result
    		Proceed to
    DTC not output
    		A
    DTC 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 (HILUX_TGN26 RM000000XHN0CQX.html).


B
Go to step 12
A

USE SIMULATION METHOD TO CHECK (HILUX_TGN26 RM000004QR7004X.html)

5.CHECK THAT SKID CONTROL ECU AND FRONT SPEED SENSOR CONNECTORS ARE SECURELY CONNECTED

  1. Check that the skid control ECU (brake actuator assembly) and the front speed sensor connectors are securely connected.


NEXT


6.RECONFIRM DTC

  1. Clear the DTC (HILUX_TGN26 RM000000XHV0CFX.html).

  1. Turn the ignition switch off.

  1. Start the engine.

  1. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 60 seconds.

  1. Check if the same DTC is output (HILUX_TGN26 RM000000XHV0CFX.html).

    Result
    Result
    		Proceed to
    DTC output
    		A
    DTC not output
    		B


B
USE SIMULATION METHOD TO CHECK (HILUX_TGN26 RM000004QR7004X.html)
A


7.CHECK FRONT SPEED SENSOR INSTALLATION

  1. Turn the ignition switch off.



    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C0200/31 Front Speed Sensor Rh Circuit

  1. Check the speed sensor installation (HILUX_TGN26 RM0000010JM02IX.html).

    OK:
    There is no clearance between the sensor and the steering knuckle.
    The installation bolt is tightened properly.
    Text in Illustration
    *1
    		Front Speed Sensor
    *a
    		No clearance
    *b
    		CORRECT
    *c
    		INCORRECT


NG
INSTALL FRONT SPEED SENSOR CORRECTLY
OK


8.INSPECT FRONT SPEED SENSOR TIP

  1. Turn the ignition switch off.

  1. Remove the front speed sensor (HILUX_TGN26 RM0000010JP020X.html).

  1. Check the speed sensor tip.

    OK:
    No scratches, oil or foreign matter on the sensor tip.
    NOTICE:
    Do not replace the speed sensor if no damage to the speed sensor tip is found.
    HINT:
    1. If the sensor is contaminated with oil or other foreign material, clean the sensor.
    2. If there is iron powder sticking to the rotor, this will result in a malfunction. Confirm that the rotor is not contaminated with foreign material before replacing the sensor.


NG
CLEAN OR REPLACE FRONT SPEED SENSOR
OK


9.INSPECT FRONT SPEED SENSOR

  1. Turn the ignition switch off.

  1. Remove the front speed sensor (HILUX_TGN26 RM0000010JP020X.html).

  1. Inspect the front speed sensor (HILUX_TGN26 RM0000010JN01JX.html).



NG
REPLACE FRONT SPEED SENSOR
OK


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

  1. Turn the ignition switch off.

  1. Disconnect the skid control ECU (brake actuator assembly) connector.

  1. Disconnect the front speed sensor connector.

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

    Standard Resistance:
    for LH:
    Tester Connection
    		Condition
    		Specified Condition
    A13-9 (FL+) - A12-1 (FL+)
    		Always
    		Below 1 Ω
    A13-9 (FL+) - Body ground
    		Always
    		10 kΩ or higher
    A13-8 (FL-) - A12-2 (FL-)
    		Always
    		Below 1 Ω
    A13-8 (FL-) - Body ground
    		Always
    		10 kΩ or higher
    for RH:
    Tester Connection
    		Condition
    		Specified Condition
    A13-31 (FR+) - A11-1 (FR+)
    		Always
    		Below 1 Ω
    A13-31 (FR+) - Body ground
    		Always
    		10 kΩ or higher
    A13-30 (FR-) - A11-2 (FR-)
    		Always
    		Below 1 Ω
    A13-30 (FR-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


11.INSPECT FRONT SKID CONTROL ROTOR

  1. Turn the ignition switch off.

  1. Remove the front skid control rotor (HILUX_TGN26 RM00000112M015X.html).

  1. Check the front skid control rotor.

    OK:
    No scratches, oil or foreign matter on the rotors.


NG
CLEAN OR REPLACE FRONT SKID CONTROL ROTOR
OK


12.REPLACE FRONT SPEED SENSOR

  1. Turn the ignition switch off.

  1. Replace the front speed sensor (HILUX_TGN26 RM0000010JP020X.html).


NEXT


13.RECONFIRM DTC

  1. Clear the DTC (HILUX_TGN26 RM000000XHV0CFX.html).

  1. Turn the ignition switch off.

  1. Start the engine.

  1. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 60 seconds.

  1. Check if the same DTC is output (HILUX_TGN26 RM000000XHV0CFX.html).

    Result
    Result
    		Proceed to
    DTC output
    		A
    DTC not output
    		B


B
END
A

REPLACE BRAKE ACTUATOR ASSEMBLY (HILUX_TGN26 RM0000010K0019X.html)