Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM1000000025DTF
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C050C24; Left Rear Wheel Speed Sensor Signal Stuck High; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

DTC

C050C24

Left Rear Wheel Speed Sensor Signal Stuck High

DESCRIPTION

Refer to DTC C050C12

Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C050C12; Left Rear Wheel Speed Sensor Circuit Short to Battery

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

DTC Output from

Note

C050C24

Left Rear Wheel Speed Sensor Signal Stuck High

The speed sensor signal is not within the specified range for 5 seconds or more.
  • Rear speed sensor LH*1
  • Rear speed sensor LH (rear axle hub and bearing assembly LH)*2

Comes on

Brake/EPB
  • SAE Code: C050D (Case 1)
  • Output ECU: Skid control ECU (brake actuator assembly)
  • *1: for AWD
  • *2: for 2WD

MONITOR DESCRIPTION

If the output signal from the speed sensor exceeds the possible output range, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.

MONITOR STRATEGY

Related DTCs

C050D (Case 1): Wheel speed sensor range monitoring (RL)

Required Sensors/Components(Main)

Speed sensor

Required Sensors/Components(Related)

Skid control ECU (brake actuator assembly)

Frequency of Operation

Continuous

Duration

5 seconds

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 (READY) and turn the GTS on.
  6. Wait for 5 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.

PROCEDURE

1.

CHECK VEHICLE

(a) Check the vehicle specification.

HINT:

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

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

Result

Proceed to

for AWD

A

for 2WD

B
A

REPLACE REAR SPEED SENSOR LH

B

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH