DTC C1A46: Yaw Rate Sensor [09/2017 - 05/2019]: Procedure

HINT: 

Pre-collision system DTC C1A46 may be stored due to a malfunction in the vehicle stability control system. Therefore, it is necessary to check for and troubleshoot vehicle stability control system DTCs first.

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [10/2014 - 05/2019]

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

   Result	Proceed to
   Vehicle stability control system DTCs are not output	A
   Vehicle stability control system DTCs are output	B

Result: 

B 

GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 05/2019] 

Result: 

A 

See step  2

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

   Body Electrical > Pre-Collision 2 > Clear DTCs 

2. Make sure that the DTC detection conditions are met.

   HINT: 

   If the detection conditions are not met, the system cannot detect the malfunction.

3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

   Body Electrical > Pre-Collision 2 > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1A46 is not output	A
   DTC C1A46 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2017 - 05/2019] 

Result: 

B 

See step  3

1. Replace the driving support ECU assembly.

   Refer to REMOVAL [09/2017 - 05/2019]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

   Body Electrical > Pre-Collision 2 > Clear DTCs 

2. Make sure that the DTC detection conditions are met.

   HINT: 

   If the detection conditions are not met, the system cannot detect the malfunction.

3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

   Body Electrical > Pre-Collision 2 > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1A46 is not output	A
   DTC C1A46 is output	B

Result: 

A 

END (DRIVING SUPPORT ECU ASSEMBLY WAS DEFECTIVE) 

Result: 

B 

See step  5

1. Replace the yaw rate sensor (airbag ECU assembly).

   Refer to REMOVAL [10/2014 - 05/2019]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

   Body Electrical > Pre-Collision 2 > Clear DTCs 

2. Make sure that the DTC detection conditions are met.

   HINT: 

   If the detection conditions are not met, the system cannot detect the malfunction.

3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

   Body Electrical > Pre-Collision 2 > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1A46 is not output	A
   DTC C1A46 is output	B

Result: 

A 

END (YAW RATE SENSOR [AIRBAG ECU ASSEMBLY] WAS DEFECTIVE) 

Result: 

B 

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY). Refer to  REMOVAL [10/2014 - 05/2019]