Clearance Warning Buzzer Circuit

PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Clearance Warning Buzzer Circuit
- Clearance Warning Buzzer Circuit

DESCRIPTION

The No. 1 clearance warning buzzer is an ECU-operated buzzer that sounds when it receives a pulsed digital signal from the ECU. The ECU operates the buzzer so that it sounds in a pattern that changes depending on the distance to the obstacle.

WIRING DIAGRAM









INSPECTION PROCEDURE

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





Result





B -- CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - CLEARANCE WARNING BUZZER)

C -- CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - CLEARANCE WARNING BUZZER)

A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Intuitive Parking Assist System

2. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - CLEARANCE WARNING BUZZER)

(a) Disconnect the I1 clearance warning ECU connector.

(b) Disconnect the G22 No. 1 clearance warning buzzer connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. REPLACE NO. 1 CLEARANCE WARNING BUZZER

(a) Replace the No. 1 clearance warning buzzer with a new or normally functioning one Removal.

NEXT -- Continue to next step.

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





OK:

The No. 1 clearance warning buzzer sounds.

NG -- REPLACE CLEARANCE WARNING ECU Removal

OK -- END (NO. 1 CLEARANCE WARNING BUZZER WAS DEFECTIVE)

5. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - CLEARANCE WARNING BUZZER)

(a) Disconnect the I3 parking assist ECU connector.

(b) Disconnect the G22 No. 1 clearance warning buzzer connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. REPLACE NO. 1 CLEARANCE WARNING BUZZER

(a) Replace the No. 1 clearance warning buzzer with a new or normally functioning one Removal.

NEXT -- Continue to next step.

7. 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





OK:

The No. 1 clearance warning buzzer sounds.

NG -- REPLACE PARKING ASSIST ECU Removal

OK -- END (NO. 1 CLEARANCE WARNING BUZZER WAS DEFECTIVE)