Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000025DT7 |
Model Year Start: 2023 |
Model: Corolla |
Prod Date Range: [09/2022 -
] |
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C050623; Right Front Wheel Speed Sensor Signal Stuck Low; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] |
DTC
|
C050623
|
Right Front Wheel Speed Sensor Signal Stuck Low
|
DESCRIPTION
Refer to DTC C050612
Click here
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
MIL
|
DTC Output from
|
Note
|
C050623
|
Right Front 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 50.4 km/h (31.3 mph) or more, the pulse signal is not detected for 0.08 seconds or more.
|
-
Front speed sensor RH
-
Speed sensor installation
|
Comes on
|
Brake/EPB
|
-
SAE Code: C0507 (Case 4 to 6)
-
Output ECU: Skid control ECU (brake actuator assembly)
|
MONITOR DESCRIPTION
C0507 (Case 4):
-
After starting off from a stop, if the value of the front right speed sensor when the vehicle has reached a certain speed is a certain value or less, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
C0507 (Case 5):
-
If the value of the front right speed sensor when the vehicle has reached a certain speed is a certain value or less, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
C0507 (Case 6):
-
When the vehicle is being driven at a certain speed or more and the acceleration rate of the respective wheel is less than a certain value, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
MONITOR STRATEGY
Related DTCs
|
C0507 (Case 4): Wheel speed sensor drive off monitoring (FR) (logic 1)
C0507 (Case 5): Wheel speed sensor drive off monitoring (FR) (logic 2)
C0507 (Case 6): Wheel speed sensor dynamic monitoring (FR)
|
Required Sensors/Components(Main)
|
Speed sensor
|
Required Sensors/Components(Related)
|
Skid control ECU (brake actuator assembly)
Speed sensor
|
Frequency of Operation
|
Continuous
|
Duration
|
-: C0507 (Case 5)
0.08 seconds: C0507 (Case 6)
0.6 seconds: C0507 (Case 4)
|
MIL Operation
|
2 driving cycles
|
Sequence of Operation
|
None
|
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored
|
TMC's intellectual property
|
Other conditions belong to TMC's intellectual property
|
-
|
TYPICAL MALFUNCTION THRESHOLDS
TMC's intellectual property
|
-
|
COMPONENT OPERATING RANGE
TMC's intellectual property
|
-
|
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.
-
Connect the GTS to the DLC3.
-
Turn the ignition switch to ON and turn the GTS on.
-
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
-
Turn the ignition switch off.
-
Turn the ignition switch to ON (READY) and turn the GTS on.
-
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.
-
Enter the following menus: Chassis / Brake/EPB* / Utility / All Readiness.
*: Electric Parking Brake System
-
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 here
Procedure to clear warning lights (When not clearing DTCs)
Procedure
|
-
Repair or replacement.
-
Turn the ignition switch to ON.
-
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) Select a DTC to display the Freeze Frame Data.
(b) Read the freeze frame data of DTC C050623.
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(C050623) > Freeze Frame Data
Tester Display
|
FR Wheel Speed
|
FL Wheel Speed
|
RR Wheel Speed
|
RL Wheel Speed
|
Result
|
Proceed to
|
The value of FR 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 FR Wheel Speed is 2 km/h (1 mph) or less when all other values are 50 km/h (31 mph) or more.
|
B
|
A
|
|
|
2.
|
READ VALUE USING GTS (FR 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 (0.0 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
|
(b) Turn the ignition switch to ON (READY) and perform a road test.
(c) Check that the value of FR 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 FR 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.
NG
|
|
|
3.
|
CHECK FRONT SPEED SENSOR RH INSTALLATION
|
(a) Check the front speed sensor RH installation.
OK:
There is no clearance between the front speed sensor RH and the steering knuckle RH.
The installation bolt is tightened properly.
Torque
8.5 N*m (87 kgf*cm, 75 in.*lbf)
|
|
*1
|
Front Speed Sensor RH
|
*a
|
Correct
|
*b
|
Incorrect
|
*c
|
8.5 N*m (87 kgf*cm, 75 in.*lbf)
|
*d
|
No clearance
|
|
|
|