| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000025DTR |
| Model Year Start: 2023 | Model: Corolla | Prod Date Range: [09/2022 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C05201C,...,C117828; Multi-axis Acceleration Sensor Module "A" Circuit Voltage Out of Range; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] | ||
|
DTC |
C05201C |
Multi-axis Acceleration Sensor Module "A" Circuit Voltage Out of Range |
|
DTC |
C052028 |
Multi-axis Acceleration Sensor Module "A" (4WD) Signal Bias Level Out of Range / Zero Adjustment Failure |
|
DTC |
C11781C |
Multi-axis Acceleration Sensor Module "A" Circuit Voltage Out of Range |
|
DTC |
C117828 |
Multi-axis Acceleration Sensor Module "A" Signal Bias Level Out of Range / Zero Adjustment Failure |
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.
These DTCs may be stored if one of the following occurs:
- Yaw rate and acceleration sensor (airbag sensor assembly) installation abnormality.
- Yaw rate and acceleration sensor signal malfunction.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
DTC Output from |
Note |
|---|---|---|---|---|---|---|
|
C05201C |
Multi-axis Acceleration Sensor Module "A" Circuit Voltage Out of Range |
|
|
Comes on |
Brake/EPB |
|
|
C052028 |
Multi-axis Acceleration Sensor Module "A" (4WD) Signal Bias Level Out of Range / Zero Adjustment Failure |
When the vehicle is being driven, the offset of the acceleration sensor is less than -2.25 m/s2 or more than 2.25 m/s2. |
|
Comes on |
Brake/EPB |
|
|
C11781C |
Multi-axis Acceleration Sensor Module "A" Circuit Voltage Out of Range |
for 2WD:
for AWD:
|
|
Does not come on |
Brake/EPB |
Output ECU: Skid control ECU (brake actuator assembly) |
|
C117828 |
Multi-axis Acceleration Sensor Module "A" Signal Bias Level Out of Range / Zero Adjustment Failure |
for 2WD:
for AWD:
|
|
Does not come on |
Brake/EPB |
Output ECU: Skid control ECU (brake actuator assembly) |
MONITOR DESCRIPTION
C051C (Case 1 and 2):
- When CAN communication of the yaw rate and acceleration sensor (airbag sensor assembly) is valid, and the longitudinal acceleration sensor (airbag sensor assembly) signal is more than a certain value, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
C051C (Case 4):
-
When CAN communication of the yaw rate and acceleration sensor (airbag sensor assembly) is valid, ABS is not operating, the stop light switch assembly is off, the vehicle speed is a certain value or more, and one of the following conditions are met, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
- The vehicle speed is less than a certain value and the longitudinal acceleration sensor (airbag sensor assembly) signal is more than a certain value.
- The vehicle speed is within a certain range and the longitudinal acceleration sensor (airbag sensor assembly) signal is more than a certain value.
- The vehicle speed is exceeding a certain value and the longitudinal acceleration sensor (airbag sensor assembly) signal is more than a certain value.
C051C (Case 5):
-
When CAN communication of the yaw rate and acceleration sensor (airbag sensor assembly) is valid, ABS/TRAC/VSC is not operating, the vehicle is being driven in the forward direction, and any of the following conditions are met, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
- The vehicle speed is less than a certain value and the difference between the longitudinal acceleration sensor (airbag sensor assembly) signal and calculated acceleration rate based on the vehicle speed is greater than a certain value.
- The vehicle speed is within a certain range and the difference between the longitudinal acceleration sensor (airbag sensor assembly) signal and calculated acceleration rate based on the vehicle speed is greater than a certain value.
- The vehicle speed is exceeding a certain value and the difference between the longitudinal acceleration sensor (airbag sensor assembly) signal and calculated acceleration rate based on the vehicle speed is greater than a certain value.
MONITOR STRATEGY
|
Related DTCs |
C051C (Case 1): Longitudinal acceleration sensor range monitoring C051C (Case 2): Longitudinal acceleration sensor offset monitoring C051C (Case 4): Longitudinal acceleration sensor rationality (high acceleration) C051C (Case 5): Longitudinal acceleration sensor rationality (relationship between vehicle acceleration and longitudinal acceleration sensor) |
|
Required Sensors/Components(Main) |
Acceleration sensor (airbag sensor assembly) Speed sensor Skid control ECU (brake actuator assembly) |
|
Required Sensors/Components(Related) |
Stop light switch assembly Speed sensor Skid control ECU (brake actuator assembly) |
|
Frequency of Operation |
Continuous |
|
Duration |
Immediately: C051C (Case 2) 3 seconds: C051C (Case 1) 4 seconds: C051C (Case 5) 20 seconds: C051C (Case 4) |
|
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.
-
Input the DTC: C05201C
-
Drive the vehicle at a speed of 6 km/h (4 mph) or more 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.
-
Drive the vehicle at a speed of 6 km/h (4 mph) or more for 3 seconds or more. [*]
-
Input the DTC: C052028
-
Drive the vehicle a distance of 2 km (1.24 mile) or more.
HINT:
[*]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
-
Drive the vehicle a distance of 2 km (1.24 mile) or more.
-
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 VEHICLE |
(a) Check the vehicle specification.
|
Result |
Proceed to |
|---|---|
|
for 2WD |
A |
|
for AWD |
B |
| B |
|
|
|
2. |
CHECK FREEZE FRAME DATA (LATERAL G AND FORWARD AND REARWARD G) |
(a) Select a DTC to display the Freeze Frame Data.
(b) Read the freeze frame data of DTC C11781C or C117828.
Chassis > Brake/EPB
|
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 > DTC(C11781C) > Freeze Frame Data
|
Tester Display |
|---|
|
Lateral G |
|
Forward and Rearward G |
Chassis > Brake/EPB > DTC(C117828) > Freeze Frame Data
|
Tester Display |
|---|
|
Lateral G |
|
Forward and Rearward G |
|
Result |
Proceed to |
|---|---|
|
The value of Lateral G or Forward and rearward G is less than -14.6 m/s2 or more than 14.6 m/s2. |
A |
|
Other than above. |
B |
| A |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
|
|
3. |
CHECK FREEZE FRAME DATA (LATERAL G AND VEHICLE SPEED) |
(a) Select a DTC to display the Freeze Frame Data.
(b) Read the freeze frame data of DTC C11781C or C117828.
Chassis > Brake/EPB
|
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 |
|
Vehicle Speed |
Vehicle speed (vehicle speed used for each control) |
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 |
Chassis > Brake/EPB > DTC(C11781C) > Freeze Frame Data
|
Tester Display |
|---|
|
Lateral G |
|
Vehicle Speed |
Chassis > Brake/EPB > DTC(C117828) > Freeze Frame Data
|
Tester Display |
|---|
|
Lateral G |
|
Vehicle Speed |
|
Result |
Proceed to |
|---|---|
|
The value of Vehicle speed is 0 km/h (0 mph) and the value of Lateral G is less than -7 m/s2 or more than 7 m/s2, or the value of Lateral G is less than -14.6 m/s2 or more than 14.6 m/s2. |
A |
|
Other than above. |
B |
| A |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
|
|
4. |
CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION |
(a) Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.
Click here
![2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: INSTALLATION](/t3Portal/stylegraphics/info.gif)
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.
| OK |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
| NG |
|
INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY
|
|
5. |
CHECK DTC |
(a) Read the DTCs using the GTS.
Chassis > Brake/EPB > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
C05201C or C052028 is output. |
A |
|
C11781C or C117828 is output. |
B |
| B |
|
|
|
6. |
CHECK FREEZE FRAME DATA (FORWARD AND REARWARD G) |
(a) Select a DTC to display the Freeze Frame Data.
(b) Read the freeze frame data of DTC C05201C or C052028.
Chassis > Brake/EPB
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
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 > DTC(C05201C) > Freeze Frame Data
|
Tester Display |
|---|
|
Forward and Rearward G |
Chassis > Brake/EPB > DTC(C052028) > Freeze Frame Data
|
Tester Display |
|---|
|
Forward and Rearward G |
|
Result |
Proceed to |
|---|---|
|
The value of Forward and rearward G is less than -14.6 m/s2 or more than 14.6 m/s2. |
A |
|
Other than above. |
B |
| A |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
|
|
7. |
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.
| OK |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
| NG |
|
INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY
|
|
8. |
CHECK FREEZE FRAME DATA (LATERAL G AND VEHICLE SPEED) |
(a) Select a DTC to display the Freeze Frame Data.
(b) Read the freeze frame data of DTC C11781C or C117828.
Chassis > Brake/EPB
|
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 |
|
Vehicle Speed |
Vehicle speed (vehicle speed used for each control) |
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 |
Chassis > Brake/EPB > DTC(C11781C) > Freeze Frame Data
|
Tester Display |
|---|
|
Lateral G |
|
Vehicle Speed |
Chassis > Brake/EPB > DTC(C117828) > Freeze Frame Data
|
Tester Display |
|---|
|
Lateral G |
|
Vehicle Speed |
|
Result |
Proceed to |
|---|---|
|
The value of Vehicle speed is 0 km/h (0 mph) and the value of Lateral G is less than -7 m/s2 or more than 7 m/s2, or the value of Lateral G is less than -14.6 m/s2 or more than 14.6 m/s2. |
A |
|
Other than above. |
B |
| A |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
|
|
9. |
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.
| OK |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
| NG |
|
INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY
|
|
|