Dtc C1413 Front Speed Sensor Rh Output Malfunction


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 FRONT SPEED SENSOR INSTALLATION

CHECK FRONT SPEED SENSOR TIP

CHECK FRONT SPEED SENSOR ROTOR

INSPECT SKID CONTROL SENSOR WIRE

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

CHECK TERMINAL VOLTAGE (FR+, FL+)

RECONFIRM DTC

REPLACE FRONT SPEED SENSOR

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 (LandCruiser RM000000XI910KX_01.html).

DTC Code
DTC Detection Condition
Trouble Area
C1413
C1414
One of the following conditions is met:
  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. Skid control sensor wire
  3. Speed sensor circuit
  4. Front speed sensor rotor RH/LH
  5. Brake actuator assembly (Skid control ECU)
C1275
C1276
Stored only during test mode.
  1. Front speed sensor RH/LH
  2. Front speed sensor rotor RH/LH
HINT:
  1. DTC C1413 is for the front speed sensor RH.
  2. DTC C1414 is for the front speed sensor LH.

WIRING DIAGRAM

Refer to DTCs C1405 and C1406 (LandCruiser RM000000XI910LX_02.html).

INSPECTION PROCEDURE

NOTICE:
  1. When replacing the brake actuator assembly, perform calibration (LandCruiser RM000000XHR0BKX.html).
  2. Check the speed sensor signal after replacement (LandCruiser RM000000XHT0EPX.html).
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 the DTC (LandCruiser RM000000XHS0GIX.html).

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


NG
Go to step 9
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.

    ABS/VSC/TRC
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    FR Wheel Speed
    		Front speed sensor RH value/ 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 value/ 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 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.

    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, refer to the reference chart (LandCruiser RM000002Z4Q040X.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 5
OK


3.PERFORM TEST MODE (SIGNAL CHECK)

  1. Perform the signal check in the test mode procedure (LandCruiser RM000000XHT0EPX.html).

    OK:
    All test mode DTCs are cleared.


NG
Go to step 5
OK


4.RECONFIRM DTC

  1. Clear the DTC (LandCruiser RM000000XHV0KEX.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 output (LandCruiser RM000000XHV0KEX.html).

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output
    		B


B
REPLACE BRAKE ACTUATOR ASSEMBLY (LandCruiser RM0000034UX02TX.html)
A

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)

5.CHECK FRONT SPEED SENSOR INSTALLATION

  1. Turn the ignition switch off.



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1413 Front Speed Sensor Rh Output Malfunction

  1. Check the speed sensor installation (LandCruiser RM000001B2H02BX.html).

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


NG
INSTALL FRONT SPEED SENSOR CORRECTLY (LandCruiser RM000001B2H02BX.html)
OK


6.CHECK FRONT SPEED SENSOR TIP

  1. Remove the front speed sensor (LandCruiser RM000001B2J024X.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.


NG
CLEAN OR REPLACE FRONT SPEED SENSOR
OK


7.CHECK FRONT SPEED SENSOR ROTOR

  1. Remove the front axle with ABS rotor bearing assembly (LandCruiser RM0000016X6037X.html).

  1. Check the speed sensor rotor.

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


NG
CLEAN OR REPLACE FRONT SPEED SENSOR ROTOR
OK


8.INSPECT SKID CONTROL SENSOR WIRE

  1. Turn the ignition switch off.

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

  1. Remove the skid control sensor wire (LandCruiser RM000001B2J024X.html).



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1413 Front Speed Sensor Rh Output Malfunction

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

    Standard Resistance:
    for RH
    Tester Connection
    		Condition
    		Specified Condition
    Ap1-1 - p1-1 (FR-)
    		Always
    		Below 1 Ω
    Ap1-2 - p1-2 (FR+)
    		Always
    		Below 1 Ω
    Ap1-1 - Ap1-2
    		Always
    		10 kΩ or higher
    for LH
    Tester Connection
    		Condition
    		Specified Condition
    Ap2-1 - p2-1 (FL-)
    		Always
    		Below 1 Ω
    Ap2-2 - p2-2 (FL+)
    		Always
    		Below 1 Ω
    Ap2-1 - Ap2-2
    		Always
    		10 kΩ or higher
    Text in Illustration
    *A
    		for RH
    *B
    		for LH
    *1
    		Skid Control Sensor Wire


NG
REPLACE SKID CONTROL SENSOR WIRE (LandCruiser RM000001B2J024X.html)
OK


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

  1. Install the skid control sensor wire.

  1. Disconnect the A6 skid control ECU connector.

  1. Disconnect the p1 and/or p2 speed sensor connector.

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

    Standard Resistance:
    for RH
    Tester Connection
    		Condition
    		Specified Condition
    A6-7 (FR+) - p1-2 (FR+)
    		Always
    		Below 1 Ω
    A6-7 (FR+) - Body ground
    		Always
    		10 kΩ or higher
    A6-6 (FR-) - p1-1 (FR-)
    		Always
    		Below 1 Ω
    A6-6 (FR-) - Body ground
    		Always
    		10 kΩ or higher
    for LH:
    Tester Connection
    		Condition
    		Specified Condition
    A6-19 (FL+) - p2-2 (FL+)
    		Always
    		Below 1 Ω
    A6-19 (FL+) - Body ground
    		Always
    		10 kΩ or higher
    A6-18 (FL-) - p2-1 (FL-)
    		Always
    		Below 1 Ω
    A6-18 (FL-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


10.CHECK TERMINAL VOLTAGE (FR+, FL+)

  1. Connect the A6 skid control ECU connector.

  1. Disconnect the p1 and/or p2 speed sensor connector.



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1413 Front Speed Sensor Rh Output Malfunction

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

    Standard Voltage:
    for RH
    Tester Connection
    		Switch Condition
    		Specified Condition
    p1-2 (FR+) - Body ground
    		Ignition switch ON
    		8 to 14 V
    for LH
    Tester Connection
    		Switch Condition
    		Specified Condition
    p2-2 (FL+) - Body ground
    		Ignition switch ON
    		8 to 14 V
    Text in Illustration
    *A
    		for RH
    *B
    		for LH
    *a
    		Front view of wire harness connector
    (to Front Speed Sensor)


NG
REPLACE BRAKE ACTUATOR ASSEMBLY (LandCruiser RM0000034UX02TX.html)
Ok


11.RECONFIRM DTC

  1. Clear the DTCs (LandCruiser RM000000XHV0KEX.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 output (LandCruiser RM000000XHV0KEX.html).

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output
    		B


B
Go to step 12
A

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)

12.REPLACE FRONT SPEED SENSOR

  1. Turn the ignition switch off.

  1. Replace the front speed sensor (LandCruiser RM000001B2J024X.html).


NEXT


13.RECONFIRM DTC

  1. Clear the DTCs (LandCruiser RM000000XHV0KEX.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 output (LandCruiser RM000000XHV0KEX.html).

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output
    		B


B
REPLACE FRONT AXLE WITH ABS ROTOR BEARING ASSEMBLY (LandCruiser RM0000016X702VX.html)
A

END