RM38N0EC _54 Brake _111814 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0503031 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model)  C050C1F  Left Rear Wheel Speed Sensor Circuit Intermittent  


DESCRIPTION

Refer to DTC C050C12

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>C050C12

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
C050C1F Left Rear Wheel Speed Sensor Circuit Intermittent
·

The speed sensor signal is excessively noisy.

·

The calculated change in wheel speed is more than 980 m/s2 for 5*1 or 20*2 seconds or more.

·

The calculated change in wheel speed fluctuates between more than 500 m/s2 and less than -500 m/s2 for 5*1 or 20*2 seconds or more.

·

When the vehicle speed is low, excessive noise in the speed sensor pulse signal is detected 3 times or more within 0.005 seconds for 5*1 or 20*2 seconds or more.


·

Rear speed sensor LH

·

Rear speed sensor rotor LH


Brake/EPB A

*1: The stop light switch assembly is OFF.

*2: The stop light switch assembly is ON.


CAUTION / NOTICE / HINT

NOTICE:

DTC precaution

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>PRECAUTION

Procedure to clear warning lights (When not clearing DTCs)
Procedure
1.

Repair or replacement.

2.

Turn the ignition switch to ON.

3.

Drive the vehicle at 54 km/h (34 mph) or more for 3 seconds or more to clear the warning lights.




PROCEDURE

1.CHECK VEHICLE
a.

Check the vehicle specification.

HINT:

The rear speed sensor LH (for 2WD) and rear speed sensor rotor LH are incorporated into the rear axle hub and bearing assembly LH.

If the rear speed sensor LH (for 2WD) and rear speed sensor rotor LH need to be replaced, replace the rear axle hub and bearing assembly LH.



Result:
Result Proceed to
for 2WD A
for AWD B



A

REPLACE REAR SPEED SENSOR LH

Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB (for 2WD)>REMOVAL


B

2.CHECK REAR SPEED SENSOR LH (CHECK FOR FOREIGN MATTER)
2.CHECK REAR SPEED SENSOR LH (CHECK FOR FOREIGN MATTER)
a.

Remove the rear speed sensor LH.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>REAR SPEED SENSOR (for AWD)>REMOVAL


b.

Check the rear speed sensor LH.

OK:

The rear speed sensor LH tip is free of oil and foreign matter.


HINT:

If foreign matter of 1 mm x 1 mm or more is adhered to the rear speed sensor LH, this DTC may be stored.



Result:
Proceed to
OK
NG



OK

3.CHECK REAR SPEED SENSOR ROTOR LH (CHECK FOR FOREIGN MATTER)

NG

8.CLEAN REAR SPEED SENSOR LH
3.CHECK REAR SPEED SENSOR ROTOR LH (CHECK FOR FOREIGN MATTER)
a.

Remove the component with the rear speed sensor rotor LH.

Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB (for AWD)>REMOVAL


b.

Check the rear speed sensor rotor LH.

OK:

The rear speed sensor rotor LH is free of oil and foreign matter.


HINT:
·

If foreign matter of 1 mm x 1 mm or more is adhered to the rear speed sensor rotor LH, this DTC may be stored.

·

The rear speed sensor rotor LH is incorporated into the rear axle hub and bearing assembly LH.

If the rear speed sensor rotor LH need to be replaced, replace the rear axle hub and bearing assembly LH.




Result:
Proceed to
OK
NG



OK

REPLACE REAR SPEED SENSOR LH AND REAR SPEED SENSOR ROTOR LH

for rear speed sensor LH: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>REAR SPEED SENSOR (for AWD)>REMOVAL

for rear speed sensor rotor LH: Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB (for AWD)>REMOVAL


NG

4.CLEAN REAR SPEED SENSOR ROTOR LH
4.CLEAN REAR SPEED SENSOR ROTOR LH
a.

Clean the rear speed sensor rotor LH.

NOTICE:

Do not use parts cleaner when cleaning the rear speed sensor rotor LH.



Result:
Proceed to
NEXT



NEXT

5.CLEAR DTC
5.CLEAR DTC
a.

Clear the DTCs.

Chassis > Brake/EPB > Clear DTCs
50002 435

Result:
Proceed to
NEXT



NEXT

6.PERFORM DEALER MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CHECK)
6.PERFORM DEALER MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CHECK)
a.

Using the GTS, perform a Dealer Mode (Signal Check) inspection sensor check and check that speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete. Enter the following menus: Chassis / Brake/EPB / Utility / Signal Check.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>SIGNAL CHECK

Chassis > Brake/EPB > Utility
Tester Display
Signal Check
50005 435 4558
OK:

Speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete.


HINT:

The rear speed sensor rotor LH is incorporated into the rear axle hub and bearing assembly LH.

If the rear speed sensor rotor LH need to be replaced, replace the rear axle hub and bearing assembly LH.



Result:
Proceed to
OK
NG



OK

7.RECONFIRM DTC

NG

REPLACE REAR SPEED SENSOR LH AND REAR SPEED SENSOR ROTOR LH

for rear speed sensor LH: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>REAR SPEED SENSOR (for AWD)>REMOVAL

for rear speed sensor rotor LH: Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB (for AWD)>REMOVAL


7.RECONFIRM DTC
a.

Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.


b.

Check if the same DTC is output.

Chassis > Brake/EPB > Trouble Codes
50001 435
HINT:

The rear speed sensor rotor LH is incorporated into the rear axle hub and bearing assembly LH.

If the rear speed sensor rotor LH need to be replaced, replace the rear axle hub and bearing assembly LH.



Result:
Result Proceed to
C050C1F is not output A
C050C1F is output B



A

END

B

REPLACE REAR SPEED SENSOR LH AND REAR SPEED SENSOR ROTOR LH

for rear speed sensor LH: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>REAR SPEED SENSOR (for AWD)>REMOVAL

for rear speed sensor rotor LH: Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB (for AWD)>REMOVAL


8.CLEAN REAR SPEED SENSOR LH
a.

Clean the rear speed sensor LH.

NOTICE:

When cleaning the rear speed sensor LH, make sure to clean the installation hole before installation.



Result:
Proceed to
NEXT



NEXT

9.CLEAR DTC
9.CLEAR DTC
a.

Clear the DTCs.

Chassis > Brake/EPB > Clear DTCs
50002 435

Result:
Proceed to
NEXT



NEXT

10.PERFORM DEALER MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CHECK)
10.PERFORM DEALER MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CHECK)
a.

Using the GTS, perform a Dealer Mode (Signal Check) inspection sensor check and check that speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete. Enter the following menus: Chassis / Brake/EPB / Utility / Signal Check.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>SIGNAL CHECK

Chassis > Brake/EPB > Utility
Tester Display
Signal Check
50005 435 4558
OK:

Speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete.



Result:
Proceed to
OK
NG



OK

11.RECONFIRM DTC

NG

3.CHECK REAR SPEED SENSOR ROTOR LH (CHECK FOR FOREIGN MATTER)
11.RECONFIRM DTC
a.

Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.


b.

Check if the same DTC is output.

Chassis > Brake/EPB > Trouble Codes
50001 435

Result:
Result Proceed to
C050C1F is not output A
C050C1F is output B



A

END

B

3.CHECK REAR SPEED SENSOR ROTOR LH (CHECK FOR FOREIGN MATTER)