| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Audio/Visual/Telematics | Section: Park Assist/Monitoring | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM0000035BC002X |
| Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: DESCRIPTION (2008 LX570) | ||
|
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
INSPECTION PROCEDURE
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 |
No. 1 clearance warning buzzer |
Operate or Stop |
- |
OK:
No. 1 clearance warning buzzer sounds.
|
|
2. |
CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - NO. 1 CLEARANCE WARNING BUZZER) |
(a) Disconnect the F37 ECU connector.
(b) Disconnect the E10 buzzer connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F37-25 (BBZ) - E10-1 (Z+) |
Always |
Below 1 Ω |
|
F37-9 (EF) - E10-2 (Z-) |
Always |
Below 1 Ω |
|
F37-25 (BBZ) - Body ground |
Always |
10 kΩ or higher |
|
F37-9 (EF) - Body ground |
Always |
10 kΩ or higher |
|
|
|