LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2018 >> BRZ Premium >> Repair and Diagnosis >> Body & Frame >> Windows >> Glass & Power Window System >> Window Defogger System >> Data Monitor/Active Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data Monitor/Active Test

  1. Inspection with SSM4
    1. Data monitor
      1. Use the SSM4 and [Data monitor] to determine functionality and narrow down the defective part.

        SSM4 screen: [Each System] → [Body Control] → [Data monitor]

        Item name Description/display range Normal value Remarks
        [Rr Defogger op. mode] Rear defogger operation status/Display range: Normal - Continuous(1) Normal: OFF after 15 minutes Continuous: 15-min. operation and 2-min. stop are repeated. -
        [Rear Defogger SW Input] Rear defogger switch status/Display range: ON-OFF - -
        [Rear defogger] Rear defogger output status/Display range: ON-OFF - -
        NOTE:
        (1) For automatic air conditioning system

        SSM4 screen: [Each System] → [Air Conditioner] → [Data monitor]

        Item name Description/display range Normal value Remarks
        [Rear defogger relay] Rear defogger relay status/Display range: ON-OFF - -
    2. Active test
      1. Use the SSM4 to conduct an [Active Test] and determine functionality and narrow down the defective part.

        SSM4 screen: [Each System] → [Body Control] → [Active Test]

        Item name Drive
        [Rear defogger] Rear defogger output ON/OFF

        SSM4 screen: [Each System] → [Power Window] → [Active Test]

        Item name Drive
        [P seat power window UP/DOWN] UP/DOWN