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 buzzer 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 engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Intuitive P/A / Active Test.
(e) Check that the buzzer operates by performing the Active Test.
Intuitive P/A
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Buzzer |
No. 1 clearance warning buzzer |
Operate or Stop |
Confirm that the vehicle is stopped and the engine switch is on (IG) |
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 D80 No. 1 clearance warning buzzer connector.
(b) Disconnect the D79 clearance warning ECU assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D79-14 (BBZ) - D80-1 (Z+) |
Always |
Below 1 Ω |
D79-13 (ER) - D80-2 (Z-) |
Always |
Below 1 Ω |
D79-14 (BBZ) - Body ground |
Always |
10 kΩ or higher |
D79-13 (ER) - 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 (See
page ).
|
4. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Intuitive P/A / Active Test.
(e) Check that the buzzer operates by performing the Active Test.
Intuitive P/A
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Buzzer |
No. 1 clearance warning buzzer |
Operate or Stop |
Confirm that the vehicle is stopped and the engine switch is on (IG) |
OK:
The No. 1 clearance warning buzzer sounds.
OK | ![]() |
END |
NG | ![]() |
REPLACE CLEARANCE WARNING ECU ASSEMBLY |
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is displayed during the DTC check, inspect the trouble areas
listed for that code. For details of the code, refer to the following "See page".
Back Door Closer System
DTC Code
...
Short in GPS Antenna (B15C0,B15C1)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the navigation antenna assembly.
DTC No.
DTC Detection Condition
Trouble Area
B15C0
Navigation antenna malfunction
...