WIPER ECU > ON-VEHICLE INSPECTION

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1. WINDSHIELD WIPER RELAY ASSEMBLY


    E069345E01
  1. Measure the voltage according to the value(s) in the table below.

    Standard voltage:

    Tester connection
    Condition
    Specified condition
    A30-1 (+1) - Body ground
    Front wiper is in LO speed operation
    (when front wiper switch is in AUTO position)
    10 to 14 V
    A30-2 (+2) - Body ground
    Front wiper is in HI speed operation
    (when front wiper switch is in AUTO position)
    10 to 14 V
    A30-5 (+SM) - Body ground
    Front wiper motor is OFF → ON
    Below 1 V → 10 to 14 V
    A30-6 (2S) - Body ground
    Front wiper switch OFF → HI
    10 to 14 V → Below 1 V
    A30-7 (1S) - Body ground
    Front wiper switch OFF → LO
    10 to 14 V → Below 1 V
    A30-8 (ES) - Body ground
    Always
    Below 1 V
    A30-10 (WIG) - Body ground
    Ignition switch OFF → ON
    Below 1V → 10 to 14 V
    A31-1 (MPX1) - Body ground
    Ignition switch OFF → ON
    Signal waveform
    A31-3 (VR1) - Body ground
    Ignition switch OFF → ON
    Below V → 5 V
    A31-6 (FWAS) - Body ground
    Front washer switch OFF → ON
    10 to 14 V → Below 1 V
    A31-7 (AUTO) - Body ground
    Front washer switch OFF → AUTO
    10 to 14 V → Below 1 V
    A31-8 (+B) - Body ground
    Always
    10 to 14 V
    A31-9 (VR2) - Body ground
    Always
    Below 1 V
    A31-12 (E) - Body ground
    Always
    Below 1 V