Dtc C1415 Rear Speed Sensor Rh Output Malfunction

Brake. Land Cruiser. Urj200, 202 Grj200 Vdj200
Brake Control Dynamic Control Systems. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)

READ VALUE USING GTS (RR/RL WHEEL SPEED)

PERFORM TEST MODE (SIGNAL CHECK)

RECONFIRM DTC

CHECK REAR SPEED SENSOR INSTALLATION

INSPECT REAR SPEED SENSOR TIP

INSPECT REAR SPEED SENSOR ROTOR

INSPECT SKID CONTROL SENSOR WIRE

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

CHECK HARNESS AND CONNECTOR (RR+/RL+ TERMINAL)

RECONFIRM DTC

REPLACE REAR SPEED SENSOR

RECONFIRM DTC

DTC C1415 Rear Speed Sensor RH Output Malfunction

DTC C1277 Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)

DTC C1278 Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)

DTC C1416 Rear Speed Sensor LH Output Malfunction


DESCRIPTION

Refer to DTCs C1401 and C1402 (Click here).

DTC Code
DTC Detection Condition
Trouble Area
C1415
C1416
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. Rear speed sensor RH/LH
  2. Skid control sensor wire
  3. Speed sensor circuit
  4. Speed sensor rotor
  5. Skid control ECU (Master cylinder solenoid)
C1277
C1278
Stored only during test mode.
  1. Rear speed sensor RH/LH
  2. Speed sensor rotor
HINT:
  1. DTCs C1415 and C1277 are for the rear speed sensor RH.
  2. DTCs C1416 and C1278 are for the rear speed sensor LH.

WIRING DIAGRAM

Refer to DTCs C1407 and C1408 (Click here).

INSPECTION PROCEDURE

NOTICE:
  1. After replacing the master cylinder solenoid, perform zero point calibration and store the system information (Click here).
  2. Check the speed sensor signal after cleaning or replacement (Click here).
1.CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)

  1. Using the GTS, check for any momentary interruption in the wire harness and connector corresponding to the DTC (Click here).

    ABS/VSC/TRC
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    RR Speed Open
    		Rear speed sensor RH open circuit detection/ Error or Normal
    		Normal
    		-
    RL Speed Open
    		Rear 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 connector.


NG
Go to step 8
OK


2.READ VALUE USING GTS (RR/RL WHEEL SPEED)

  1. Turn the ignition switch off.

  1. Connect the GTS to the DLC3.

  1. Start the engine.

  1. Turn the GTS on.

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

    ABS/VSC/TRC
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    RR Wheel Speed
    		Rear 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.
    RL Wheel Speed
    		Rear 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 that there is no difference between the speed value output from the speed sensor displayed on the GTS 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 (Click here).
    OK:
    The speed value output from the speed sensor displayed on the GTS 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 sensor check in the Test Mode Procedure (Click here).

    OK:
    All test mode DTCs are cleared.


NG
Go to step 5
OK


4.RECONFIRM DTC

  1. Clear the DTC (Click here).

  1. Turn the ignition switch off.

  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 (Click here).

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


B
Go to step 12
A

CHECK FOR INTERMITTENT PROBLEMS (Click here)

5.CHECK REAR SPEED SENSOR INSTALLATION

  1. Turn the ignition switch off.



    Land Cruiser. Urj200, 202 Grj200 Vdj200.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1415 Rear Speed Sensor Rh Output Malfunction

  1. Check the speed sensor installation (Click here).

    OK:
    There is no clearance between the sensor and the rear axle.
    The installation nut is tightened properly.
    Text in Illustration
    *1
    		Rear Speed Sensor
    *a
    		No clearance
    *b
    		OK
    *c
    		NG


NG
INSTALL REAR SPEED SENSOR CORRECTLY
OK


6.INSPECT REAR SPEED SENSOR TIP

  1. Remove the rear speed sensor (Click here).

  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 REAR SPEED SENSOR
OK


7.INSPECT REAR SPEED SENSOR ROTOR

  1. Remove the rear axle shaft together with the parking brake plate (Click here).

  1. Check the speed sensor rotor.

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


NG
CLEAN OR REPLACE REAR SPEED SENSOR ROTOR
OK


8.INSPECT SKID CONTROL SENSOR WIRE

Land Cruiser. Urj200, 202 Grj200 Vdj200.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1415 Rear Speed Sensor Rh Output Malfunction


Text in Illustration
*A
for RH
*B
for LH
*1
Skid Control Sensor Wire
-
-

  1. Remove the skid control sensor wire (Click here).

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

    Standard Resistance:

    for RH
    Tester Connection
    		Condition
    		Specified Condition
    Nz1-4 - z19-2 (RR+)
    		Always
    		Below 1 Ω
    Nz1-3 - z19-1 (RR-)
    		Always
    		Below 1 Ω
    Nz1-4 - Nz1-3
    		Always
    		10 kΩ or higher
    Nz1-4 - Nz1-1
    		Always
    		10 kΩ or higher
    Nz1-4 - Nz1-2
    		Always
    		10 kΩ or higher

    for LH
    Tester Connection
    		Condition
    		Specified Condition
    Nz1-2 - z20-2 (RL+)
    		Always
    		Below 1 Ω
    Nz1-1 - z20-1 (RL-)
    		Always
    		Below 1 Ω
    Nz1-2 - Nz1-1
    		Always
    		10 kΩ or higher
    Nz1-2 - Nz1-3
    		Always
    		10 kΩ or higher
    Nz1-2 - Nz1-4
    		Always
    		10 kΩ or higher


NG
REPLACE SKID CONTROL SENSOR WIRE (Click here)
OK


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

  1. Install the skid control sensor wire (Click here).

  1. Disconnect the A24 skid control ECU (master cylinder solenoid) connector.

  1. Disconnect the z19 and/or z20 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
    A24-5 (RR+) - z19-2 (RR+)
    		Always
    		Below 1 Ω
    A24-5 (RR+) - Body ground
    		Always
    		10 kΩ or higher
    A24-19 (RR-) - z19-1 (RR-)
    		Always
    		Below 1 Ω
    A24-19 (RR-) - Body ground
    		Always
    		10 kΩ or higher

    for LH
    Tester Connection
    		Condition
    		Specified Condition
    A24-20 (RL+) - z20-2 (RL+)
    		Always
    		Below 1 Ω
    A24-20 (RL+) - Body ground
    		Always
    		10 kΩ or higher
    A24-6 (RL-) - z20-1 (RL-)
    		Always
    		Below 1 Ω
    A24-6 (RL-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


10.CHECK HARNESS AND CONNECTOR (RR+/RL+ TERMINAL)

  1. Connect the skid control ECU (master cylinder solenoid) connector.

  1. Disconnect the speed sensor connector.



    Land Cruiser. Urj200, 202 Grj200 Vdj200.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C1415 Rear 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
    z19-2 (RR+) - Body ground
    		Ignition switch ON
    		11 to 14 V
    for LH
    Tester Connection
    		Switch Condition
    		Specified Condition
    z20-2 (RL+) - Body ground
    		Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *A
    		for RH
    *B
    		for LH
    *a
    		Front view of wire harness connector
    (to Rear Speed Sensor)
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for LHD)
    		B
    NG (for RHD)
    		C


B
REPLACE MASTER CYLINDER SOLENOID (Click here)

C
REPLACE MASTER CYLINDER SOLENOID (Click here)
A


11.RECONFIRM DTC

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off.

  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 (Click here).

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


B
Go to step 12
A

CHECK FOR INTERMITTENT PROBLEMS (Click here)

12.REPLACE REAR SPEED SENSOR

  1. Replace the rear speed sensor (Click here).


NEXT


13.RECONFIRM DTC

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off.

  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 (Click here).

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


B
REPLACE REAR AXLE HUB AND BEARING ASSEMBLY (Click here)
A

END