| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM100000001T5H2 |
| Model Year Start: 2021 | Model: Camry HV | Prod Date Range: [10/2020 - ] |
| Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: No. 1 Clearance Warning Buzzer Circuit; 2021 - 2024 MY Camry HV [10/2020 - ] | ||
|
No. 1 Clearance Warning Buzzer Circuit |
DESCRIPTION
This circuit consists of the No. 1 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
CAUTION / NOTICE / HINT
NOTICE:
Perform registration after replacing or removing and installing the ultrasonic sensor or clearance warning ECU assembly.
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![2021 - 2024 MY Camry HV [10/2020 - ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: CALIBRATION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
PERFORM ACTIVE TEST USING GTS |
(a) Connect the GTS to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the GTS 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 |
|---|---|---|---|
|
Front Buzzer |
No. 1 clearance warning buzzer |
Stop or Operate |
Confirm that the vehicle is stopped and the ignition switch is ON |
Body Electrical > Clearance Warning > Active Test
|
Tester Display |
|---|
|
Front Buzzer |
OK:
The No. 1 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. 1 CLEARANCE WARNING BUZZER) |
(a) Disconnect the R39 clearance warning ECU assembly connector.
(b) Disconnect the K74 No. 1 clearance warning buzzer connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R39-9 (CBZ) - K74-1 (Z+) |
Always |
Below 1 Ω |
|
R39-8 (EF) - K74-2 (Z-) |
Always |
Below 1 Ω |
|
R39-9 (CBZ) or K74-1 (Z+) - Body ground |
Always |
10 kΩ or higher |
|
R39-8 (EF) or K74-2 (Z-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
REPLACE NO. 1 CLEARANCE WARNING BUZZER |
(a) Replace the No. 1 clearance warning buzzer with a new or known good one.
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|
|
4. |
PERFORM ACTIVE TEST USING GTS |
(a) Connect the GTS to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the GTS 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 |
|---|---|---|---|
|
Front Buzzer |
No. 1 clearance warning buzzer |
Operate or Stop |
Confirm that the vehicle is stopped and the ignition switch is ON |
Body Electrical > Clearance Warning > Active Test
|
Tester Display |
|---|
|
Front Buzzer |
OK:
The No. 1 clearance warning buzzer sounds.
| OK |
|
END (NO. 1 CLEARANCE WARNING BUZZER WAS DEFECTIVE) |
| NG |
|
|
|