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Home >> Subaru >> 2016 >> Forester 2.5i, Eng CD FB25BA, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Lighting System) >> Rear Height Sensor >> Inspection

Rear Height Sensor: Inspection

WARNING: This page is about a different car, the 2016 Subaru Impreza and 2016 Subaru Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect three dry cell batteries (1.5 V) in series.
    NOTE:
    • Use new dry-cell batteries.
    • Using a circuit tester, check that the initial voltage of each dry-cell battery is 1.6 V or more. And also check that the voltage of three batteries in series is between 4.8 V and 5.2 V.
    • For power supply, 5 V DC constant voltage power source can also be used.
  2. Connect the cell battery positive terminal to the connector terminal No. 3, and the cell battery negative terminal to the connector terminal No. 1.
  3. With voltage applied, check the voltage between terminals when the sensor link is moved slowly up and down.

    Preparation tool: 

    Circuit tester 

    Fig 1: Measuring Voltage Between Sensor Link Connector Terminals
    G08315119Courtesy of SUBARU OF AMERICA, INC.
    Terminal No. Inspection conditions Standard
    2 (+) - 1 (-) Move the link within the operation range. 0.5 - 4.1 V
  4. Replace the sensor assembly - headlight beam leveler if the inspection result is not within the standard value.