| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VJA0 |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 11/2017] |
| Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Clearance Warning Buzzer Circuit; 2016 - 2017 MY Sienna [12/2015 - 11/2017] | ||
|
Clearance Warning Buzzer Circuit |
DESCRIPTION
The No. 1 clearance warning buzzer sounds to alert the driver and the buzzed frequency changes depending on the distance to an obstacle.
WIRING DIAGRAM
PROCEDURE
|
1. |
PERFORM ACTIVE TEST USING TECHSTREAM (NO. 1 CLEARANCE WARNING BUZZER) |
(a) Select the Active Test, use the Techstream to generate a control command, and then check that the buzzer operates.
Intuitive P/A
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Buzzer |
Clearance warning buzzer |
Operate or Stop |
Confirm that the vehicle is stopped and the ignition switch is ON |
OK:
Clearance warning buzzer sounds.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
|
2. |
CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - CLEARANCE WARNING BUZZER) |
(a) Disconnect the D77 clearance warning ECU connector.
(b) Disconnect the D17 clearance warning buzzer connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D77-10 (BBZ) - D17-1 |
Always |
Below 1 Ω |
|
D77-11 (EF) - D17-2 |
Always |
Below 1 Ω |
|
D77-10 (BBZ) - Body ground |
Always |
10 kΩ or higher |
|
D77-11 (EF) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|