RM38T0EC _54 Brake _112606 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0608077 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for HEV Model) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for HEV Model)  C05121C  Right Rear Wheel Speed Sensor Circuit Voltage Out of Range  


DESCRIPTION

Refer to DTC C051212.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>C051212

DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Output from Note
C05121C Right Rear Wheel Speed Sensor Circuit Voltage Out of Range
·

When the vehicle is being driven in a straight line at a speed of 20 km/h (12 mph) or more and VSC/TRC has permission to control vehicle braking, one of the following conditions is met when the difference between the highest wheel speed and the lowest wheel speed is 6% or more*1 for between 9 and 72 seconds or more (period changes depending on vehicle conditions):

-

When the difference between the highest wheel speed and the second highest wheel speed is 5 km/h (3 mph) or more, the wheel speed is high compared to other speed sensors.

-

The value of the wheel speed is continuously the slowest.

-

When the wheel speed is less than 5 km/h (3 mph).


·

When the vehicle speed is less than 100 km/h (62 mph), one of the following conditions is met when the difference between the highest wheel speed and the lowest wheel speed is 6 km/h (4 mph) or more*2 for between 9 and 72 seconds or more (period changes depending on vehicle conditions):

-

When the difference between the highest wheel speed and the second highest wheel speed is 5 km/h (3 mph) or more, the wheel speed is high compared to other speed sensors.

-

The value of the wheel speed is continuously the slowest.

-

When the wheel speed is less than 5 km/h (3 mph).


·

When the vehicle speed is 100 km/h (62 mph) or more, one of the following conditions is met when the difference between the highest wheel speed and the lowest wheel speed is 6% or more*1 for between 9 and 72 seconds or more (period changes depending on vehicle conditions):

-

When the difference between the highest wheel speed and the second highest wheel speed is 5 km/h (3 mph) or more, the wheel speed is high compared to other speed sensors.

-

The value of the wheel speed is continuously the slowest.

-

When the wheel speed is less than 5 km/h (3 mph).



·

Rear speed sensor RH (rear axle hub and bearing assembly RH)

·

Rear speed sensor rotor RH (rear axle hub and bearing assembly RH)

·

Speed sensor installation

·

Tire wear

·

Tire pressure

·

Tire and wheel size


Comes on Brake/EPB
·

SAE Code: C0513 (Case 2 and 3)

·

Output ECU: Skid control ECU (brake actuator assembly)



*1: When more than 1 wheel has a wheel speed of less than 5 km/h (3 mph), a difference of 15% is permitted.

*2: When more than 1 wheel has a wheel speed of less than 5 km/h (3 mph), a difference of 16 km/h (10 mph) is permitted.


CONFIRMATION DRIVING PATTERN

NOTICE:

When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.


HINT:
·

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.



1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON and turn the GTS on.

3.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4.

Turn the ignition switch off.

5.

Turn the ignition switch to ON (READY) and turn the GTS on.

6.

Wait for 1 second or more. [*]

HINT:

[*]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.


7.

Enter the following menus: Chassis / Brake/EPB* / Utility / All Readiness.

*: Electric Parking Brake System

8.

Check the DTC judgment result.

HINT:
·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.

·

If the judgment result shows INCOMPLETE, perform driving pattern again.




CAUTION / NOTICE / HINT

NOTICE:

DTC precaution

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV 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 11 km/h (7 mph) or more for 1 second or more to clear the warning lights.




PROCEDURE

1.PRE-CHECK
a.

Check that all 4 tires are of correct size, are inflated to the correct pressure, and do not show excessive signs of wear.

Click hereSuspension>TIRE / WHEEL>TIRE AND WHEEL SYSTEM>INSPECTION

HINT:

If a tire is deformed or an incorrectly sized tire or wheel is installed, this DTC may be stored.



Result:
Proceed to
NEXT



NEXT

2.CHECK FREEZE FRAME DATA (WHEEL SPEED)
2.CHECK FREEZE FRAME DATA (WHEEL SPEED)
a.

Select a DTC to display the Freeze Frame Data.


b.

Read the freeze frame data of DTC C05121C.

Chassis > Brake/EPB
Tester Display Measurement Item Range Normal Condition Diagnostic Note
FR Wheel Speed Front wheel speed sensor RH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
FL Wheel Speed Front wheel speed sensor LH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
RR Wheel Speed Rear wheel speed sensor RH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
RL Wheel Speed Rear wheel speed sensor LH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
Chassis > Brake/EPB > DTC(C05121C) > Freeze Frame Data
Tester Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed
50040 435 13,14,15,16 C05121C

Result:
Result Proceed to
The value of RL Wheel Speed is more than all other values. A
The value of RL Wheel Speed is less than all other values. B
The value of RL Wheel Speed is less than 5 km/h (3 mph). C



A

3.READ VALUE USING GTS (WHEEL SPEED)

B

4.READ VALUE USING GTS (WHEEL SPEED)

C

5.READ VALUE USING GTS (RR WHEEL SPEED)
3.READ VALUE USING GTS (WHEEL SPEED)
a.

Check the Data List using the GTS.

Chassis > Brake/EPB > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
FR Wheel Speed Front wheel speed sensor RH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
FL Wheel Speed Front wheel speed sensor LH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
RR Wheel Speed Rear wheel speed sensor RH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
RL Wheel Speed Rear wheel speed sensor LH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
Chassis > Brake/EPB > Data List
Tester Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed
50003 435 13,14,15,16

b.

Turn the ignition switch to ON (READY).


c.

Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.


d.

Check the value of Wheel Speed.

OK:

The difference between the value of RR Wheel Speed and all other values is less than 6%.


HINT:
·

If the result of the road test is within the specified range, it is possible that this DTC was stored due to a particular situation such as wheelspin.

·

The rear speed sensor rotor RH and rear speed sensor RH are incorporated into the rear axle hub and bearing assembly RH.

If the rear speed sensor rotor RH and rear speed sensor RH need to be replaced, replace them together with the rear axle hub and bearing assembly RH.




Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB>REMOVAL


4.READ VALUE USING GTS (WHEEL SPEED)
a.

Check the Data List using the GTS.

Chassis > Brake/EPB > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
FR Wheel Speed Front wheel speed sensor RH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
FL Wheel Speed Front wheel speed sensor LH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
RR Wheel Speed Rear wheel speed sensor RH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
RL Wheel Speed Rear wheel speed sensor LH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
Chassis > Brake/EPB > Data List
Tester Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed
50003 435 13,14,15,16

b.

Turn the ignition switch to ON (READY).


c.

Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.


d.

Check the value of Wheel Speed.

OK:

The difference between the value of RR Wheel Speed and all other values is less than 6%.


HINT:
·

If the result of the road test is within the specified range, it is possible that this DTC was stored due to a particular situation such as wheelspin.

·

The rear speed sensor rotor RH and rear speed sensor RH are incorporated into the rear axle hub and bearing assembly RH.

If the rear speed sensor rotor RH and rear speed sensor RH need to be replaced, replace them together with the rear axle hub and bearing assembly RH.




Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB>REMOVAL


5.READ VALUE USING GTS (RR WHEEL SPEED)
a.

Check the Data List using the GTS.

Chassis > Brake/EPB > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
RR Wheel Speed Rear wheel speed sensor RH reading Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
Chassis > Brake/EPB > Data List
Tester Display
RR Wheel Speed
50003 435 15

b.

Turn the ignition switch to ON (READY).


c.

Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.


d.

Check the value of RR Wheel Speed.

OK:

The value of RR Wheel Speed is 5 km/h (3 mph) or more.


HINT:
·

If the result of the road test is within the specified range, it is possible that this DTC was stored due to a particular situation such as wheelspin, brake drag or wheel lockup.

When a DTC is stored during operation of ABS or TRC, the system also stores vehicle control history (RoB) that can be guessed the vehicle conditions.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>VEHICLE CONTROL HISTORY (RoB)

·

The rear speed sensor rotor RH and rear speed sensor RH are incorporated into the rear axle hub and bearing assembly RH.

If the rear speed sensor rotor RH and rear speed sensor RH need to be replaced, replace them together with the rear axle hub and bearing assembly RH.




Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB>REMOVAL