| Last Modified: 05-08-2025 | 6.11:8.1.0 | Doc ID: RM100000001FAI9 |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - ] |
| Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: Buzzer does not Sound; 2019 - 2025 MY RAV4 RAV4 HV [11/2018 - ] | ||
|
Buzzer does not Sound |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Clear the DTCs.
Click here
![2019 - 2025 MY RAV4 RAV4 HV [11/2018 - ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
Body Electrical > Blind Spot Monitor Slave > Clear DTCs
(b) Recheck for DTCs and check if the same DTC is output again.
Click here
Body Electrical > Blind Spot Monitor Slave > Trouble Codes
OK:
No DTCs are output.
| NG |
|
GO TO DTC CHART
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (RCTA BUZZER - BLIND SPOT MONITOR SENSOR RH) |
(a) Disconnect the N19 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 |
|---|---|---|
|
N19-1 (BZP) - Body ground |
Ignition Switch ON |
11 to 14 V |
|
N19-2 (BZN) or Q13-3 (BUZ) - Body ground |
Below 1 V |
|
|
N19-2 (BZN) - N19-1 (BZP) |
Below 1 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
CHECK HARNESS AND CONNECTOR (RCTA BUZZER - AUXILIARY BATTERY AND BLIND SPOT MONITOR SENSOR RH) |
(a) Disconnect the N19 RCTA buzzer (blind spot monitor buzzer) connector.
(b) Disconnect the Q13 blind spot monitor sensor RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
N19-2 (BZN) - Q13-3 (BUZ) |
Always |
Below 1 Ω |
|
N19-2 (BZN) or Q13-3 (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 |
|---|---|---|
|
N19-2 (BZN) or Q13-3 (BUZ) - Body ground |
Ignition switch ON |
Below 1 V |
|
N19-1 (BZP) - Body ground |
Ignition switch ON |
11 to 14 V |
|
N19-1 (BZP) - Body ground |
Ignition switch off |
Below 1 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK RCTA BUZZER (BLIND SPOT MONITOR BUZZER) |
(a) Replace the RCTA Buzzer (blind spot monitor buzzer) with a new or known good one and check if the same malfunction recurs.
Click here
OK:
Malfunction does not reoccur (returns to normal).
| OK |
|
REPLACE BLIND SPOT MONITOR SENSOR RH
|
| NG |
|
REPLACE RCTA BUZZER (BLIND SPOT MONITOR BUZZER)
|
|
|