Clearance Sonar Main Switch Inspection


  1. INSPECT BACK SONAR OR CLEARANCE SONAR SWITCH ASSEMBLY

Clearance Sonar Main Switch -- Inspection



1. INSPECT BACK SONAR OR CLEARANCE SONAR SWITCH ASSEMBLY


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Park Assist Monitoring.Toyota Parking Assist-Sensor System (W/ Multi-Display).Clearance Sonar Main Switch Inspection

  1. Check the resistance.

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

      Standard Resistance:
      Tester Connection
      		Switch Condition
      		Specified Condition
      3 (ECU) - 6 (IG)
      		Sonar switch off
      		10 kΩ or higher
      Sonar switch on
      		Below 1 Ω
      If the result is not as specified, replace the back sonar or clearance sonar switch.

  1. Inspect the indicator operation.

    OK:
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 3 (ECU)
    Battery negative (-) → Terminal 7 (IND)
    		LED illuminates
    If the result is not as specified, replace the back sonar or clearance sonar switch.

  1. Inspect the illumination operation.

    OK:
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 5 (ILL+)
    Battery negative (-) → Terminal 4 (ILL-)
    		LED illuminates
    If the result is not as specified, replace the back sonar or clearance sonar switch.
    Text in Illustration
    *a
    		Component without harness connected
    (Back Sonar or Clearance Sonar Switch)