Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Left Rear Wheel Speed Sensor Incorrect Component Installed (C055795)

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

DTC Output from

Note

C055795

Left Rear Wheel Speed Sensor Incorrect Component Installed

The rear speed sensor LH is installed incorrectly.

Rear speed sensor LH

Comes on

Brake/EPB

  • SAE Code: C0557
  • Output ECU: Skid control ECU (brake actuator assembly)

MONITOR DESCRIPTION

The skid control ECU (brake actuator assembly) has a speed sensor circuit self-diagnosis function.

When the vehicle is stopped, the speed sensor supply voltage exceeds a certain value, and the self-diagnosis function detects an incorrectly installed speed sensor, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.

MONITOR STRATEGY

Related DTCs

C0557 (Case 1): Wheel speed sensor wrong sensor type monitoring for RL (PWM intelligent sensor)

C0557 (Case 2): Wheel speed sensor wrong sensor type monitoring for RL (standard sensor)

C0557 (Case 3): Wheel speed sensor wrong sensor type monitoring for RL (intelligent sensor)

Required Sensors/Components(Main)

Skid control ECU (brake actuator assembly)

Required Sensors/Components(Related)

Skid control ECU (brake actuator assembly)

Speed sensor

Frequency of Operation

Continuous

Duration

3 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 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.

PROCEDURE

1.

CHECK PART NUMBER (REAR SPEED SENSOR LH)

(a) Check that the rear speed sensor LH is installed.

OK:

Proper rear speed sensor LH is installed.

NOTICE:

If it is necessary to remove components in order to check the rear speed sensor LH, follow the relevant installation and removal procedures and precautions for those components.

NG

REPLACE REAR SPEED SENSOR LH

OK

2.

CLEAR DTC

(a) Clear the DTCs.

Chassis > Brake/EPB > Clear DTCs

(b) Turn the ignition switch off.

NEXT

3.

RECONFIRM DTC

(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.

(b) Check if the same DTC is output.

Chassis > Brake/EPB > Trouble Codes

Result

Proceed to

DTC C055795 is not output.

A

DTC C055795 is output.

B

A

USE SIMULATION METHOD TO CHECK

B

REPLACE REAR SPEED SENSOR LH

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