DTC C051D-54: Multi-axis Acceleration Sensor Module "A" Missing Calibration [10/2020 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Enter the following menus: Chassis / Brake/EPB / Utility / Reset Memory.
4. Clear the zero point calibration data and system information.

   Refer to CALIBRATION [10/2020 - 08/2021] , or refer to CALIBRATION [08/2021 - ]

   Chassis > Brake > Utility 

   Tester Display
   Reset Memory

5. Perform acceleration sensor zero point calibration and system information memorization.

   Refer to CALIBRATION [10/2020 - 08/2021] , or refer to CALIBRATION [08/2021 - ]

   Chassis > Brake > Utility 

   Tester Display
   Calibration

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Operate the Techstream to clear the codes. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

   Chassis > Brake > Clear DTCs 

4. Press the DTC clear button.
5. Turn the ignition switch off.
6. Turn the ignition switch to ON.
7. Read the DTCs following the prompts on the Techstream. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

   Chassis > Brake > Trouble Codes 

8. Check if the same DTC is output.

   Result

   Result	Proceed to
   C051D-54 is not output	A
   C051D-54 is output	B

Result: 

A 

END 

Result: 

B 

See step  3

1. Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.

   Refer to INSTALLATION [03/2020 - ]

   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.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY. Refer to  INSTALLATION [03/2020 - ] 

Result: 

OK 

See step  4

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Enter the following menus: Chassis / Brake/EPB / Data List.

   Chassis > Brake > 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 > Data List 

   Tester Display
   Lateral G
   Forward and Rearward G

4. Check the acceleration sensor (airbag sensor assembly) output value displayed on the Techstream.

   OK

   The acceleration sensor (airbag sensor assembly) output value is normal.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [10/2020 - ] 

Result: 

NG 

REPLACE AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL [10/2020 - ]