DTC C0526-46: Steering Angle Sensor Module Calibration / Parameter Memory Failure [06/2018 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Operate the Techstream to clear the codes. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

   Chassis > Brake/EPB > Clear DTCs 

4. Press the DTC clear button.
5. Turn the engine switch off.
6. Turn the engine switch on (IG) again and check that no CAN communication system DTCs are output.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

7. Start the engine and perform a road test.
8. Drive the vehicle at a speed of 15 km/h (9 mph) and turn the steering wheel to the right and left.
9. Check that no speed sensor or yaw rate and acceleration sensor (airbag ECU assembly) DTCs are output. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

   Chassis > Brake/EPB > Trouble Codes 

   Result

   Result	Proceed to
   C0526-46 is output.	A
   CAN communication system DTCs are output.	B
   Speed sensor and/or yaw rate and acceleration sensor (airbag ECU assembly) DTCs are output.	C
   C0526-46 is not output.	D

   HINT: 

   • If a speed sensor or the yaw rate and acceleration sensor (airbag ECU assembly) is malfunctioning, DTCs for the steering angle sensor may be stored even though the steering angle sensor is normal.
   • If speed sensor and yaw rate and acceleration sensor (airbag ECU assembly) DTCs are output simultaneously, repair these malfunctions and then inspect the steering angle sensor.
   • If DTC C0526-46 is not output again, the DTC may have been stored due to a temporary loss of steering angle zero point calibration, such as a loss of calibration due to the power source voltage being low.

Result: 

B 

INSPECT CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

Result: 

C 

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to  DIAGNOSTIC TROUBLE CODE CHART [06/2018 - 08/2020]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2020 - ] 

Result: 

D 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

Result: 

A 

See step  2

1. Drive the vehicle straight ahead at 15 km/h (9 mph) or more for at least 1 second.
2. Check that the steering wheel is correctly centered while driving straight ahead.

   OK

   The steering wheel is correctly centered.

   HINT: 

   If front wheel alignment and steering are adjusted as a result of an off-center steering wheel, acquire the yaw rate and acceleration sensor zero point again after the adjustments are completed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

ADJUST FRONT WHEEL ALIGNMENT OR STEERING POSITION. Refer to  ADJUSTMENT [06/2018 - 08/2020]  , or refer to  ADJUSTMENT [08/2020 - 08/2021]  , or refer to  ADJUSTMENT [08/2021 - ] 

Result: 

OK 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Operate the Techstream to clear the codes. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

   Chassis > Brake/EPB > Clear DTCs 

4. Press the DTC clear button.
5. Turn the engine switch off.
6. Start the engine and perform a road test.
7. Drive the vehicle at a speed of 15 km/h (9 mph) and turn the steering wheel to the right and left.
8. Read the DTCs following the prompts on the Techstream. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

   Chassis > Brake/EPB > Trouble Codes 

9. Check if the same DTC is output.

   Result

   Result	Proceed to
   C0526-46 is not output.	A
   C0526-46 is output.	B

   HINT: 

   If DTC C0526-46 is not output again, the DTC may have been stored due to a temporary loss of the steering angle zero point calibration, such as a loss of calibration due to the power source voltage being low.

Result: 

A 

END 

Result: 

B 

REPLACE STEERING ANGLE SENSOR. Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ]