| Last Modified: 05-08-2025 | 6.11:8.1.0 | Doc ID: RM100000001HCH8 |
| Model Year Start: 2019 | Model: RAV4 HV | Prod Date Range: [02/2019 - 10/2023] |
| Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM (for HV Model with Parking Support Brake System): No. 2 Clearance Warning Buzzer Circuit; 2019 - 2023 MY RAV4 HV [02/2019 - 10/2023] | ||
|
No. 2 Clearance Warning Buzzer Circuit |
DESCRIPTION
This circuit consists of the No. 2 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzers using a sound pattern that changes depending on the distance to the obstacle.
WIRING DIAGRAM
PROCEDURE
|
1. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Clearance Warning / Active Test.
(e) Check that the buzzer operates by performing the Active Test.
Body Electrical > Clearance Warning > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Rear Buzzer |
No. 2 clearance warning buzzer |
OFF or ON |
Confirm that the vehicle is stopped and the power switch is on (IG) |
Body Electrical > Clearance Warning > Active Test
|
Tester Display |
|---|
|
Rear Buzzer |
OK:
The No. 2 clearance warning buzzer sounds.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - NO. 2 CLEARANCE WARNING BUZZER) |
(a) Disconnect the G25*1 or H4*2 clearance warning ECU assembly connector.
- *1: for TMMC Made
- *2: for TMC Made
(b) Disconnect the M13 No. 2 clearance warning buzzer connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for TMMC Made:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G25-25 (BBZ) - M13-1 (Z+) |
Always |
Below 1 Ω |
|
G25-26 (ER) - M13-2 (Z-) |
Always |
Below 1 Ω |
|
G25-25 (BBZ) or M13-1 (Z+) - Body ground |
Always |
10 kΩ or higher |
|
G25-26 (ER) or M13-2 (Z-) - Body ground |
Always |
10 kΩ or higher |
for TMC Made:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H4-25 (BBZ) - M13-1 (Z+) |
Always |
Below 1 Ω |
|
H4-26 (ER) - M13-2 (Z-) |
Always |
Below 1 Ω |
|
H4-25 (BBZ) or M13-1 (Z+) - Body ground |
Always |
10 kΩ or higher |
|
H4-26 (ER) or M13-2 (Z-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
REPLACE NO. 2 CLEARANCE WARNING BUZZER |
(a) Replace the No. 2 clearance warning buzzer with a new or known good one.
Click here
![2019 - 2024 MY RAV4 RAV4 HV [11/2018 - 11/2024]; PARK ASSIST / MONITORING: CLEARANCE WARNING BUZZER (for Rear Side): REMOVAL](/t3Portal/stylegraphics/info.gif)
|
|
4. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Clearance Warning / Active Test.
(e) Check that the buzzer operates by performing the Active Test.
Body Electrical > Clearance Warning > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Rear Buzzer |
No. 2 clearance warning buzzer |
OFF or ON |
Confirm that the vehicle is stopped and the power switch is on (IG) |
Body Electrical > Clearance Warning > Active Test
|
Tester Display |
|---|
|
Rear Buzzer |
OK:
The No. 2 clearance warning buzzer sounds.
| OK |
|
END (NO. 2 CLEARANCE WARNING BUZZER WAS DEFECTIVE) |
| NG |
|
|
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