DTC C1A46: Yaw Rate Sensor [08/2014 - ]: Procedure

1. Check DTCs for the electronically controlled brake system (Refer to DTC Check / Clear [08/2014 - ] ).

   OK

   DTC C1234 is not output.

Result:  NG

NG 

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM 

(Refer to DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction [08/2014 - ] )

Result:  OK

OK 

Refer to  2

1. Replace the brake booster with master cylinder (skid control ECU) (Refer to Removal [08/2014 - ] ).

Result:  NEXT

NEXT 

Refer to  3

1. Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
2. Clear the DTCs (Refer to DTC Check / Clear [08/2014 - ] ).
3. Driver the vehicle.
4. Recheck for DTCs.

   OK

   DTC C1A46 is not output.

Result:  OK

OK 

CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) 

(Refer to How To Proceed With Troubleshooting [08/2014 - ] )

Result:  NG

NG 

REPLACE DRIVING SUPPORT ECU 

(Refer to Removal [08/2014 - ] )