Buzzer does not Sound [09/2020 - ]: Procedure
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- READ VALUE USING GTS
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON.
- Turn the GTS on.
- Enter the following menus: Body Electrical / Blind Spot Monitor Slave / Data List.
- Read the Data List according to the display on the GTS.
Body Electrical > Blind Spot Monitor Slave > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Buzzer Connection Connection status of the buzzer Valid or Invalid Valid: Connection
Invalid: No connection- 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 RH (Slave). Refer to REMOVAL [10/2016 - ]
Result:
A
See step 2
- CHECK FOR DTC
- According to the display on the GTS, check for DTCs.
Body Electrical > Blind Spot Monitor Slave > Clear DTCs
- According to the display on the GTS, check for DTCs.
Body Electrical > Blind Spot Monitor Slave > Trouble Codes
OK
No DTCs are output.
Result
Proceed to OK NG
Result:
NG
GO TO BLIND SPOT MONITOR SYSTEM. Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2020 - ]
Result:
OK
See step 3
- According to the display on the GTS, check for DTCs.
- CHECK HARNESS AND CONNECTOR (RCTA BUZZER (BLIND SPOT MONITOR BUZZER) - BLIND SPOT MONITOR SENSOR RH (Slave) AND POWER SOURCE)
- Disconnect the RCTA buzzer (blind spot monitor buzzer) connector.
*a Front view of wire harness connector
(to RCTA Buzzer (Blind Spot Monitor Buzzer))*b Front view of wire harness connector
(to Blind Spot Monitor Sensor RH (Slave)) - Disconnect the blind spot monitor sensor RH (Slave) connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition Q34-1 (BZP) - Body ground Ignition switch ON 11 to 14 V Q34-2 (BZN) or Q51-3 (BUZ) - Body ground Ignition switch ON Below 1 V Q34-2 (BZN) - Q34-1 (BZP) Ignition switch ON Below 1 V Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 4
- Disconnect the RCTA buzzer (blind spot monitor buzzer) connector.
- CHECK HARNESS AND CONNECTOR (RCTA BUZZER (BLIND SPOT MONITOR BUZZER) - BLIND SPOT MONITOR SENSOR RH (Slave) AND AUXILIARY BATTERY)
- Disconnect the Q34 RCTA buzzer (blind spot monitor buzzer) connector.
- Disconnect the Q51 blind spot monitor sensor RH (Slave) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Q34-2 (BZN) - Q51-3 (BUZ) Always Below 1 Ω Q34-2 (BZN) or Q51-3 (BUZ) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE RCTA BUZZER (BLIND SPOT MONITOR BUZZER). Refer to REMOVAL [08/2015 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR