Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000015L72
Model Year Start: 2018 Model: Camry Prod Date Range: [06/2017 -           ]
Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: Buzzer does not Sound; 2018 - 2024 MY Camry [06/2017 -        ]

Buzzer does not Sound

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When checking for DTCs, make sure that the blind spot monitor system is turned on.
  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK RCTA BUZZER (BLIND SPOT MONITOR BUZZER)

(a) Check that the RCTA buzzer (blind spot monitor buzzer) sounds when the initial check is performed.

Click here 2018 - 2020 MY Camry [06/2017 - 10/2020]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: SYSTEM DESCRIPTION 2021 - 2024 MY Camry [10/2020 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: SYSTEM DESCRIPTION

OK:

RCTA buzzer sounds

OK

REPLACE BLIND SPOT MONITOR SENSOR LH 2018 - 2020 MY Camry [06/2017 - 10/2020]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: REMOVAL

NG

2.

CHECK DTC

(a) Turn the engine switch off.

(b) Turn the engine switch on (IG).

(c) 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.

NG

GO TO DTC CHART 2018 - 2020 MY Camry [06/2017 - 10/2020]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2021 - 2024 MY Camry [10/2020 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

OK

3.

CHECK HARNESS AND CONNECTOR (RCTA BUZZER - BLIND SPOT MONITOR SENSOR LH)

(a) Disconnect the R26 RCTA buzzer (blind spot monitor buzzer) connector.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

R26-1 (BZP) - Body ground

Engine Switch on (IG)

11 to 14 V

R26-2 (BZN) or W6-3 (BUZ) - Body ground

Below 1 V

R26-2 (BZN) - R26-1 (BZP)

Below 1 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

CHECK HARNESS AND CONNECTOR (RCTA BUZZER - BLIND SPOT MONITOR SENSOR LH AND BATTERY)

(a) Disconnect the R26 RCTA buzzer (blind spot monitor buzzer) connector.

(b) Disconnect the W6 blind spot monitor sensor LH connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

R26-2 (BZN) - W6-3 (BUZ)

Always

Below 1 Ω

R26-2 (BZN) or W6-3 (BUZ) - Body ground

Always

10 kΩ or higher

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

R26-2 (BZN) or W6-3 (BUZ) - Body ground

Engine switch on (IG)

Below 1 V

R26-1 (BZP) - Body ground

Engine switch on (IG)

11 to 14 V

R26-1 (BZP) - Body ground

Engine switch off

Below 1 V

OK

REPLACE BLIND SPOT MONITOR BUZZER 2018 - 2020 MY Camry [06/2017 - 10/2020]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: OPERATION CHECK 2021 - 2024 MY Camry [10/2020 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: OPERATION CHECK

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR