DTC C1ABE: Short to GND or Open in Buzzer [04/2018 -]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Blind Spot Monitor Slave / Data List.
5. Read the Data List according to the display on the Techstream.

   Body Electrical > Blind Spot Monitor Slave > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Buzzer Connection	Status of the buzzer connection	Valid or Invalid	Valid: Buzzer connection is valid Invalid: Buzzer connection is invalid	-
   Slave Side RCTA Function	Switches the RCTA function on and off	OFF or ON	OFF: RCTA function off ON: RCTA function on	-

   Body Electrical > Blind Spot Monitor Slave > Data List 

   Tester Display
   Buzzer Connection
   Slave Side RCTA Function

   Result

   Result	Proceed to
   "Valid" and "ON" is displayed for all items.	A
   "Invalid" or "OFF" is displayed.	B

Result: 

B 

REPLACE BLIND SPOT MONITOR SENSOR LH. Refer to  REMOVAL [04/2018 -] 

Result: 

A 

See step  2

1. Turn the power switch off.
2. Turn the power switch on (IG).
3. Recheck for DTCs and check if the same DTC is output again.

   Body Electrical > Blind Spot Monitor Slave > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 -] 

Result: 

NG 

See step  3

1. Disconnect the K22 RCTA buzzer (blind spot monitor buzzer) connector.
2. Disconnect the P6 blind spot monitor sensor LH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K22-2 (BZN) - P6-3 (BUZ)	Always	Below 1 Ω
   K22-2 (BZN) or P6-3 (BUZ) - Body ground	Always	10 kΩ or higher

4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   K22-1 (BZP) - Body ground	Power switch on (IG)	11 to 14 V
   K22-1 (BZP) - Body ground	Power switch off	Below 1 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE RCTA BUZZER (BLIND SPOT MONITOR BUZZER). Refer to  REMOVAL [04/2018 - 08/2020]  , or refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 -] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR