Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000260RE
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): C05001F; Left Front Wheel Speed Sensor Circuit Intermittent; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]

DTC

C05001F

Left Front Wheel Speed Sensor Circuit Intermittent

DESCRIPTION

Refer to DTC C050012.

Click here 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): C050012; Left Front Wheel Speed Sensor Circuit Short to Battery

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C05001F

Left Front Wheel Speed Sensor Circuit Intermittent

Any of the following is detected:

  • When the +BS terminal voltage is 17.4 V or less, an open in the sensor signal circuit of a malfunctioning area occurs 255 times or more.
  • When the +BS terminal voltage is 17.4 V or less at a vehicle speed of 20 km/h (12 mph) or more, noise occurs in the sensor signals of a malfunctioning wheel 75 times or more within 5 seconds.
  • When the +BS terminal voltage is 17.4 V or less at a vehicle speed of 10 km/h (6 mph) or more, noise occurs once per rotor rotation for 15 seconds or more.
  • Front speed sensor LH
  • Speed sensor installation
  • Front speed sensor rotor LH (front axle hub sub-assembly LH)

PROCEDURE

1.

READ VALUE USING GTS (FL WHEEL SPEED, MOMENTARY INTERRUPTION)

(a) While monitoring the values of the Data List, perform a road test and attempt to reproduce the problem symptoms based on the interview with the customer and the vehicle conditions stored as Freeze Frame Data when the DTC was stored.

Click here 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): DATA LIST / ACTIVE TEST

Chassis > Brake/EPB > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

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

FL Speed Open

Front speed sensor LH open detection

Normal / Under intermittent

Normal: Momentary interruption not detected

Under intermittent: Momentary interruption detected

-

Chassis > Brake/EPB > Data List

Tester Display

FL Wheel Speed

FL Speed Open

OK:

The values change in accordance with the operation of the vehicle and there is no intermittent operation.

NOTICE:

Perform the above inspection before removing the sensor and connector.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

CHECK FRONT SPEED SENSOR LH INSTALLATION

(a) Turn the ignition switch off.

*1

Front Speed Sensor LH

*a

Correct

*b

Incorrect

*c

8.5 N*m (87 kgf*cm, 75 in.*lbf)

*d

No clearance

(b) Check the front speed sensor LH installation.

OK:

There is no clearance between the front speed sensor LH and front steering knuckle LH.

The installation bolt is tightened properly.

Torque

8.5 N*m (87 kgf*cm, 75 in.*lbf)

NG

INSTALL FRONT SPEED SENSOR LH CORRECTLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: FRONT SPEED SENSOR: INSTALLATION 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: FRONT SPEED SENSOR: INSTALLATION

OK

3.

CHECK FRONT SPEED SENSOR LH (CHECK FOR FOREIGN MATTER)

(a) Remove the front speed sensor LH, and confirm that there is no foreign matter, oil or grease on the front speed sensor tip LH.

OK:

The front speed sensor tip LH is free of oil and foreign matter.

HINT:

If foreign matter of 1mm x 1mm or more is adhered to the front speed sensor LH, this DTC may be stored.

NG

GO TO STEP 7

OK

4.

CHECK FRONT SPEED SENSOR ROTOR LH (CHECK FOR FOREIGN MATTER)

(a) Confirm that there is no foreign matter, oil or grease on the front speed sensor rotor LH.

OK:

The front speed sensor rotor LH is free of oil and foreign matter.

HINT:

  • If foreign matter of 1mm x 1mm or more is adhered to the front speed sensor rotor LH, this DTC may be stored.
  • The front speed sensor rotor LH is incorporated into the front axle hub sub-assembly LH.
  • If the front speed sensor rotor LH needs to be replaced, replace it together with the front axle hub sub-assembly LH.
OK

REPLACE FRONT SPEED SENSOR LH AND FRONT SPEED SENSOR ROTOR LH

for Front Speed Sensor LH: Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: FRONT SPEED SENSOR: REMOVAL

for Front Speed Sensor Rotor LH: Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; AXLE AND DIFFERENTIAL: FRONT AXLE HUB (for G16E-GTS): REMOVAL

NG

5.

CLEAN FRONT SPEED SENSOR ROTOR LH

(a) Clean the front speed sensor rotor LH.

NOTICE:

Do not use parts cleaner when cleaning the front speed sensor rotor LH.

NEXT

6.

READ VALUE USING GTS (FL WHEEL SPEED, MOMENTARY INTERRUPTION)

(a) While monitoring the values of the Data List, perform a road test and attempt to reproduce the problem symptoms based on the interview with the customer and the vehicle conditions stored as Freeze Frame Data when the DTC was stored.

Click here 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): DATA LIST / ACTIVE TEST

Chassis > Brake/EPB > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

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

FL Speed Open

Front speed sensor LH open detection

Normal / Under intermittent

Normal: Momentary interruption not detected

Under intermittent: Momentary interruption detected

-

Chassis > Brake/EPB > Data List

Tester Display

FL Wheel Speed

FL Speed Open

OK:

The values change in accordance with the operation of the vehicle and there is no intermittent operation.

NOTICE:

Perform the above inspection before removing the sensor and connector.

HINT:

  • The front speed sensor rotor LH is incorporated into the front axle hub sub-assembly LH.
  • If the front speed sensor rotor LH needs to be replaced, replace it together with the front axle hub sub-assembly LH.
OK

END
NG

REPLACE FRONT SPEED SENSOR LH AND FRONT SPEED SENSOR ROTOR LH

for Front Speed Sensor LH: Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: FRONT SPEED SENSOR: REMOVAL

for Front Speed Sensor Rotor LH: Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; AXLE AND DIFFERENTIAL: FRONT AXLE HUB (for G16E-GTS): REMOVAL

7.

CLEAN FRONT SPEED SENSOR LH

(a) Clean the front speed sensor LH.

NOTICE:

When cleaning the front speed sensor LH, make sure to clean the installation hole before installation.

NEXT

8.

READ VALUE USING GTS (FL WHEEL SPEED, MOMENTARY INTERRUPTION)

(a) While monitoring the values of the Data List, perform a road test and attempt to reproduce the problem symptoms based on the interview with the customer and the vehicle conditions stored as Freeze Frame Data when the DTC was stored.

Click here 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): DATA LIST / ACTIVE TEST

Chassis > Brake/EPB > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

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

FL Speed Open

Front speed sensor LH open detection

Normal / Under intermittent

Normal: Momentary interruption not detected

Under intermittent: Momentary interruption detected

-

Chassis > Brake/EPB > Data List

Tester Display

FL Wheel Speed

FL Speed Open

OK:

The values change in accordance with the operation of the vehicle and there is no intermittent operation.

NOTICE:

Perform the above inspection before removing the sensor and connector.

OK

END
NG

GO TO STEP 4