RM35X0E _54 Brake _078667 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0383093 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/o VSC OFF Switch) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/o VSC OFF Switch)  C050C23  Left Rear Wheel Speed Sensor Signal Stuck Low  C051223  Right Rear Wheel Speed Sensor Signal Stuck Low  


DESCRIPTION

Refer to DTC C050C12

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o VSC OFF Switch)>C050C12

DTC No. Detection Item DTC Detection Condition Trouble Area
C050C23 Left Rear Wheel Speed Sensor Signal Stuck Low
·

When the vehicle is driven from 0 km/h to 12 km/h (0 mph to 7 mph), the wheel speed is 1.8 km/h (1.1 mph) or less for 0.6 seconds or more.

·

When the wheel speed has not exceeded 1.8 km/h (1.1 mph), the vehicle speed reaches 18 km/h (11 mph).

·

When the vehicle speed and wheel speed are both 43.2 km/h (26.8 mph) or more, the pulse signal is not detected for 0.08 seconds or more.


·

Rear speed sensor LH (rear speed sensor)

·

Speed sensor installation


C051223 Right Rear Wheel Speed Sensor Signal Stuck Low
·

When the vehicle is driven from 0 km/h to 12 km/h (0 mph to 7 mph), the wheel speed is 1.8 km/h (1.1 mph) or less for 0.6 seconds or more.

·

When the wheel speed has not exceeded 1.8 km/h (1.1 mph), the vehicle speed reaches 18 km/h (11 mph).

·

When the vehicle speed and wheel speed are both 43.2 km/h (26.8 mph) or more, the pulse signal is not detected for 0.08 seconds or more.


·

Rear speed sensor RH (rear speed sensor)

·

Speed sensor installation



DTC Detection Conditions: C050C23
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3
Diagnosis Condition The vehicle is driven from 0 km/h to 12 km/h (0 mph to 7 mph). ○ - -
The vehicle speed reaches 18 km/h (11 mph). - ○ -
The vehicle speed and wheel speed are both 43.2 km/h (26.8 mph) or more. - - ○
Malfunction Status The wheel speed is 1.8 km/h (1.1 mph) or less. ○ - -
The wheel speed has not exceeded 1.8 km/h (1.1 mph). - ○ -
The pulse signal is not detected. - - ○
Detection Time 0.6 seconds or more. - 0.08 seconds or more.
Number of Trips 1 trip 1 trip 1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.


DTC Detection Conditions: C051223
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3
Diagnosis Condition The vehicle is driven from 0 km/h to 12 km/h (0 mph to 7 mph). ○ - -
The vehicle speed reaches 18 km/h (11 mph). - ○ -
The vehicle speed and wheel speed are both 43.2 km/h (26.8 mph) or more. - - ○
Malfunction Status The wheel speed is 1.8 km/h (1.1 mph) or less. ○ - -
The wheel speed has not exceeded 1.8 km/h (1.1 mph). - ○ -
The pulse signal is not detected. - - ○
Detection Time 0.6 seconds or more. - 0.08 seconds or more.
Number of Trips 1 trip 1 trip 1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.


CAUTION / NOTICE / HINT

NOTICE:
·

After replacing or removing and installing a speed sensor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o VSC OFF Switch)>TEST MODE PROCEDURE

·

DTC precaution

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o VSC OFF Switch)>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 2 km/h (1 mph) or more to clear the warning lights.





PROCEDURE

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

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Chassis / Brake / Trouble Codes.


d.

Select a DTC to display the Freeze Frame Data.


e.

Read the freeze frame data of DTC C050C23 or C051223.

Chassis > Brake
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 > DTC(C050C23) > Freeze Frame Data
Tester Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed
50040 435 13,14,15,16 C050C23
Chassis > Brake > DTC(C051223) > Freeze Frame Data
Tester Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed
50040 435 13,14,15,16 C051223

Result:
Result Proceed to
The value of RL Wheel Speed is 2 km/h (1 mph) or less when all other values are 12 km/h (7 mph) or more. A
The value of RR Wheel Speed is 2 km/h (1 mph) or less when all other values are 12 km/h (7 mph) or more.
The value of RL Wheel Speed is 2 km/h (1 mph) or less when all other values are 43 km/h (27 mph) or more. B
The value of RR Wheel Speed is 2 km/h (1 mph) or less when all other values are 43 km/h (27 mph) or more.



A

2.READ VALUE USING GTS (WHEEL SPEED)

B

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY

for Rear Disc Brake: Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE SHAFT (for Rear Disc Brake)>REMOVAL

for Rear Drum Brake: Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE SHAFT (for Rear Drum Brake)>REMOVAL


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

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Chassis / Brake / Data List.

Chassis > Brake > 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 (0.0 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 (0.0 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 > Data List
Tester Display
RR Wheel Speed
RL Wheel Speed
50003 435 15,16

d.

Start the engine and perform a road test.


e.

Check that the value of Wheel Speed changes in accordance with vehicle speed when accelerating from 0 km/h to 20 km/h (0 mph to 12 mph).

OK:

The value of Wheel Speed changes in accordance with vehicle speed.


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 brake drag, wheelspin or wheel lockup.



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

3.CHECK REAR SPEED SENSOR INSTALLATION
3.CHECK REAR SPEED SENSOR INSTALLATION
a.
C168336C45
0.917,1.49 1.24,1.74 false 0.75,1.823 1.073,1.99 0.323,0.167 10 false *a 0.135,0.135 0.448,0.333 0.313,0.198 10 false *1 1.281,1.698 1.615,1.906 0.333,0.208 10 false *c 2.438,1.865 2.75,2.063 0.313,0.198 10 false *b
*1 Front Speed Sensor
*a Correct
*b Incorrect
*c No clearance


Check the rear speed sensor installation.

OK:

There is no clearance between the rear speed sensor and the rear axle carrier.

The installation bolt is tightened properly.



Result:
Proceed to
OK
NG



OK

REPLACE REAR SPEED SENSOR

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>REAR SPEED SENSOR>REMOVAL


NG

REINSTALL OR REPLACE REAR SPEED SENSOR

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>REAR SPEED SENSOR>INSTALLATION