| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM10000000271IZ |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [09/2022 - 11/2022] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System TMC Made): C051D54,C121054; Multi-axis Acceleration Sensor Module "A" Missing Calibration; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022] | ||
|
DTC |
C051D54 |
Multi-axis Acceleration Sensor Module "A" Missing Calibration |
|
DTC |
C121054 |
Yaw Rate Sensor Missing Calibration |
DESCRIPTION
The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition.
The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via CAN communication.
HINT:
If a communication error with the yaw rate and acceleration sensor (airbag sensor assembly) is detected, DTCs U012500 and U015187 are stored.
The DTC is also stored when the calibration has not been completed.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C051D54 |
Multi-axis Acceleration Sensor Module "A" Missing Calibration |
Zero point calibration of acceleration sensor undone. |
|
|
C121054 |
Yaw Rate Sensor Missing Calibration |
Zero point calibration of yaw rate sensor undone. |
|
PROCEDURE
|
1. |
PERFORM ACCELERATION SENSOR ZERO POINT CALIBRATION |
(a) Connect the GTS to the DLC3.
(b) Turn the ignition switch to ON.
(c) Enter the following menus: Chassis / Brake/EPB / Utility / Reset Memory.
(d) Clear the zero point calibration data and system information.
Click here
![2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System TMC Made): UTILITY](/t3Portal/stylegraphics/info.gif)
Chassis > Brake/EPB > Utility
|
Tester Display |
|---|
|
Reset Memory |
(e) Perform acceleration sensor zero point calibration and system information memorization.
Click here
Chassis > Brake/EPB > Utility
|
Tester Display |
|---|
|
Calibration |
|
|
2. |
RECONFIRM DTC |
(a) Connect the GTS to the DLC3.
(b) Turn the ignition switch to ON.
(c) Operate the GTS to clear the codes. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.
Chassis > Brake > Clear DTCs
(d) Press the DTC clear button.
(e) Turn the ignition switch off.
(f) Turn the ignition switch to ON.
(g) Read the DTCs following the prompts on the GTS. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.
Chassis > Brake > Trouble Codes
(h) Check if the same DTC is output.
|
Result |
Proceed to |
|---|---|
|
C051D54 and C121054 are not output |
A |
|
C051D54 or C121054 is output |
B |
| A |
|
END |
|
|
3. |
CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION |
(a) Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.
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 |
|
|
|
4. |
READ VALUE USING GTS (ACCELERATION SENSOR) |
(a) Connect the GTS to the DLC3.
(b) Turn the ignition switch to ON.
(c) Enter the following menus: Chassis / Brake/EPB / Data List.
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 |
|
Yaw Rate Sensor Value |
Yaw rate sensor |
Min.: -128°/s, Max.: 127°/s |
Vehicle stopped: 0°/s Turning right: -128 to 0°/s Turning left: 0 to 127°/s |
- |
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
Lateral G |
|
Forward and Rearward G |
|
Yaw Rate Sensor Value |
(d) Check the yaw rate and acceleration sensor (airbag sensor assembly) output value displayed on the GTS.
OK:
The yaw rate and acceleration sensor (airbag sensor assembly) output value is normal.
| OK |
|
| NG |
|
|
|