| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM1000000026KPS |
| 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): C051D00; Multi-axis Acceleration Sensor Module "A"; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 - ] | ||
|
DTC |
C051D00 |
Multi-axis Acceleration Sensor Module "A" |
DESCRIPTION
The airbag sensor assembly has a built-in yaw rate and acceleration sensor.
The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via CAN communication.
HINT:
If there is a malfunction in the bus lines between the yaw rate and acceleration sensor (airbag sensor assembly) and the CAN communication system, DTC U012587 is output. When DTC U012587 is output together with C051D00, inspect and repair the trouble areas indicated by U012587 first.
This DTC is also output when the calibration has not been completed.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C051D00 |
Multi-axis Acceleration Sensor Module "A" |
When the vehicle speed is 40 km/h (25 mph) or more, the acceleration sensor zero point is not calibrated. |
|
PROCEDURE
|
1. |
CLEAR ZERO POINT VALUE FOR YAW RATE AND ACCELERATION SENSOR |
(a) Clear the zero point value for the yaw rate and acceleration sensor.
HINT:
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): UTILITY](/t3Portal/stylegraphics/info.gif)
Chassis > Brake/EPB > Utility
|
Tester Display |
|---|
|
Reset Memory |
|
|
2. |
PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR |
(a) Perform zero point calibration of the yaw rate and acceleration sensor.
HINT:
Click here
Chassis > Brake/EPB > Utility
|
Tester Display |
|---|
|
Calibration |
|
|
3. |
CLEAR DTC |
(a) Clear the DTCs.
Chassis > Brake/EPB > Clear DTCs
(b) Turn the ignition switch off.
|
|
4. |
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 C051D00 is not output. |
A |
|
DTC C051D00 is output. |
B |
| A |
|
|
|
5. |
CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION |
(a) Turn the ignition switch off.
(b) Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.
HINT:
Click here
OK:
The yaw rate and acceleration sensor (airbag sensor assembly) is tightened to the specified torque.
The yaw rate and acceleration sensor (airbag sensor assembly) is not installed in a tilted position.
| NG |
|
INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY
|
|
|
6. |
READ VALUE USING GTS (ACCELERATION SENSOR) |
(a) Check the acceleration sensor output value displayed on the GTS.
Chassis > Brake/EPB > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Lateral G |
Lateral G |
Min.: -25.105 m/s2 Max.: 24.908 m/s2 |
Turning right: -25.105 to 0.000 m/s2 Turning left: 0.000 to 24.908 m/s2 |
During turning: Changes in proportion with lateral acceleration |
|
Forward and Rearward G |
Forward and rearward G |
Min.: -25.105 m/s2 Max.: 24.908 m/s2 |
During deceleration: -25.105 to 0.000 m/s2 During acceleration: 0.000 to 24.908 m/s2 |
During acceleration/deceleration: Changes in proportion with acceleration |
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
Lateral G |
|
Forward and Rearward G |
OK:
The acceleration sensor output value is normal.
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
| NG |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
|
|