Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000025DVP |
Model Year Start: 2023 |
Model: Corolla |
Prod Date Range: [09/2022 -
] |
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C055795; Left Rear Wheel Speed Sensor Incorrect Component Installed; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] |
DTC
|
C055795
|
Left Rear Wheel Speed Sensor Incorrect Component Installed
|
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*1
-
Rear speed sensor LH (rear axle hub and bearing assembly LH)*2
|
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.
-
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 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.
-
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.
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.
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)
NG |
|
REPLACE REAR SPEED SENSOR LH
for 2WD: Click here
for AWD: Click here
|
OK
|
|
|
(a) Clear the DTCs.
Chassis > Brake/EPB > Clear DTCs
(b) Turn the ignition switch off.
NEXT
|
|
|
(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
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
|
DTC C055795 is not output.
|
A
|
DTC C055795 is output.
|
B
|
B |
|
REPLACE REAR SPEED SENSOR LH
for 2WD: Click here
for AWD: Click here
|
|