Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000002D0E8
Model Year Start: 2024 Model: GR Corolla Prod Date Range: [08/2023 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): C050C1F; Left Rear Wheel Speed Sensor Circuit Intermittent; 2024 - 2025 MY Corolla Corolla Hatchback GR Corolla [08/2023 -        ]

DTC

C050C1F

Left Rear Wheel Speed Sensor Circuit Intermittent

DESCRIPTION

Refer to DTC C050C12

Click here 2024 - 2025 MY Corolla Corolla Hatchback GR Corolla [08/2023 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): C050C12; Left Rear Wheel Speed Sensor Circuit Short to Battery

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

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

Comes on

SAE Code: C0510 (Case 1 and 2)
  • *1: The stop light switch assembly is OFF.
  • *2: The stop light switch assembly is ON.

MONITOR DESCRIPTION

C0510 (Case 1):

  • When any of the following conditions are met, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
    • The acceleration (change over a certain amount of time) of the respective wheel is more than a certain amount.
    • The amplitude of acceleration (change over a certain amount of time) is a certain amount or more.
    • Noise in the respective wheel speed pulse occurs a certain number of times or more.

C0510 (Case 2):

  • If extremely large noise occurs in the output signal from the speed sensor, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.

MONITOR STRATEGY

*1: Influence of noise is recognized at 3 or 4 wheel speed sensor).

*2: The stop light switch assembly is OFF.

*3: The stop light switch assembly is ON.

Related DTCs

C0510 (Case 1): Wheel speed sensor noise monitoring (RL)

C0510 (Case 2): Wheel speed sensor direct memory access buffer noise monitoring for RL

Required Sensors/Components(Main)

Speed sensor

Skid control ECU (brake actuator assembly)

Required Sensors/Components(Related)

Skid control ECU (brake actuator assembly)

Frequency of Operation

Continuous

Duration

0.03 seconds: C0510 (Case 2)

1 second: C0510 (Case 1)*1

5 seconds: C0510 (Case 1)*2

20 seconds: C0510 (Case 1)*3

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.
  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 and turn the GTS on.
  6. Wait for 3 seconds 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 here 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): 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.

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH

(a) Replace the rear axle hub and bearing assembly LH.

for Double Wishbone Type Suspension: Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV [09/2022 -        ]; AXLE AND DIFFERENTIAL: REAR AXLE HUB (for Double Wishbone Type Suspension 2WD with Electric Parking Brake): REMOVAL

for Torsion Beam Type Suspension: Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; AXLE AND DIFFERENTIAL: REAR AXLE HUB (for Torsion Beam Type Suspension): REMOVAL

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