Clearance Sonar System Clearance Sonar Main Switch Circuit

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Park Assist Monitoring. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK MULTIPLEX COMMUNICATION SYSTEM

READ VALUE OF INTELLIGENT TESTER

READ VALUE OF INTELLIGENT TESTER

CLEARANCE SONAR SYSTEM - Clearance Sonar Main Switch Circuit


DESCRIPTION

The clearance sonar main switch is installed on the integration control and panel assembly.
When the clearance sonar main switch in turned ON, an ON signal is sent to the clearance warning ECU through the BEAN line. The clearance sonar system operates according to this signal.

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.Park Assist Monitoring.Clearance Sonar System.Clearance Sonar System  Clearance Sonar Main Switch Circuit


INSPECTION PROCEDURE

1.CHECK MULTIPLEX COMMUNICATION SYSTEM
Refer to how to proceed with troubleshooting (Click here).
If the multiplex communication system is operating normally, proceed to the next step.

NEXT


2.READ VALUE OF INTELLIGENT TESTER
  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the intelligent tester main switch ON.

  1. Turn the clearance sonar main switch ON.

  1. Select the item below in the Data List, and read its value displayed on the intelligent tester to check the clearance sonar main switch.

    Result:

    Clearance warning ECU:
    Item
    Measurement / Range (Display)
    Normal Condition
    Diagnostic Note
    Main Switch
    Clearance sonar main switch / OFF or ON
    OFF: Clearance sonar main switch OFF
    ON: Clearance sonar main switch ON
    -


OK
REPLACE CLEARANCE WARNING ECU
NG


3.READ VALUE OF INTELLIGENT TESTER
  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the intelligent tester main switch ON.

  1. Turn the clearance sonar main switch ON.

  1. Select the item below in the Data List, and read its value displayed on the intelligent tester to check the clearance sonar main switch.

    Result:

    Integration control and panel assembly:
    Item
    Measurement / Range (Display)
    Normal Condition
    Diagnostic Note
    Sonar Main Switch
    Clearance sonar main switch / OFF or ON
    OFF: Clearance sonar main switch OFF
    ON: Clearance sonar main switch ON
    -


OK
REPLACE CLEARANCE WARNING ECU
NG

REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY