Wiper And Washer System Terminals Of Ecu

Body Electrical. Camry. Acv40 Gsv40
Wiper And Washer. Camry. Acv40 Gsv40
  1. CHECK WINDSHIELD WIPER RELAY ASSEMBLY (AUTO WIPER RELAY)

  1. CHECK HEADLIGHT CLEANER CONTROL RELAY

Wiper And Washer System -- Terminals Of Ecu



CHECK WINDSHIELD WIPER RELAY ASSEMBLY (AUTO WIPER RELAY)

Camry. Acv40 Gsv40.Wiper And Washer.Wiper And Washer System.Wiper And Washer System  Terminals Of Ecu

  1. Disconnect the E26 relay connector.

  2. Measure the voltage and resistance of the wire harness side connector.

    Symbols (Terminal No.)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    W (E26-4) - Body ground
    GR - Body ground
    Front washer switch circuit
    Front washer switch is ON
    Below 1 Ω
    Front washer switch is OFF
    10 kΩ or higher
    IG (E26-12) - Body ground
    L - Body ground
    IG signal circuit
    Ignition switch ON
    10 to 14 V
    Ignition switch OFF
    Below 1 V
    WIG (E26-23) - Body ground
    B - Body ground
    WIG signal circuit
    Ignition switch ON
    10 to 14 V
    Ignition switch OFF
    Below 1 V
    E (E26-26) - Body ground
    W-B - Body ground
    Body ground
    Always
    Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.
  3. Reconnect the E26 relay connector.

  4. Measure the voltage of the connector.

    Symbols (Terminal No.)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    +2S (E26-1) - Body ground
    P - Body ground
    Front wiper LO speed signal circuit
    Ignition switch ON,
    front wiper switch LO
    10 to 14 V
    Ignition switch ON,
    front wiper switch except LO
    Below 1 V
    +1 (E26-2) - Body ground
    R - Body ground
    Front wiper motor LO speed signal circuit
    Front wiper motor is in LO operation
    10 to 14 V
    Front wiper motor is OFF
    Below 1 V
    +2 (E26-3) - Body ground
    V - Body ground
    Front wiper motor HI speed signal circuit
    Front wiper motor is in HI operation
    10 to 14 V
    Front wiper motor is OFF
    Below 1 V
    W (E26-4) - Body ground
    GR - Body ground
    Front washer motor circuit
    Front washer switch is ON
    Below 1 V
    Front washer switch is OFF
    10 to 14 V
    +SM (E26-10) - Body ground
    Y- Body ground
    Front wiper motor operation signal
    Front wiper motor is in LO or HI operation
    10 to 14 V
    Front wiper motor is OFF
    Below 1 V
    C1 (E26-17) - C0 (E26-16)
    P - R
    IG signal circuit
    Ignition switch ON
    10 to 14 V
    Ignition switch OFF
    Below 1 V
    If the result is not as specified, the relay may have a malfunction.

CHECK HEADLIGHT CLEANER CONTROL RELAY

Camry. Acv40 Gsv40.Wiper And Washer.Wiper And Washer System.Wiper And Washer System  Terminals Of Ecu

  1. Disconnect the A39 relay connector.

  2. Measure the voltage and resistance of the wire harness side connector.

    Symbols (Terminal No.)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    IG (A39-3) - Body ground
    GR - Body ground
    IG signal circuit
    Ignition switch ON
    10 to 14 V
    Ignition switch OFF
    Below 1 V
    E (A39-4) - Body ground
    BR - Body ground
    Body ground
    Always
    Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.
  3. Reconnect the A39 relay connector.

  4. Measure the voltage of the connector.

    Symbols (Terminal No.)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    HDLO (A39-1) - Body ground
    P - Body ground
    Headlight LO signal
    Headlight control switch LO
    Below 1 V
    Headlight control switch except LO
    10 to 14 V
    H (A39-2) - Body ground
    Y - Body ground
    Headlight cleaner switch signal
    Headlight cleaner switch ON,
    headlight control switch LO
    Below 1 V
    Headlight cleaner switch ON,
    headlight control switch except LO
    10 to 14 V
    FRWA (A39-5) - Body ground
    L - Body ground
    Front washer motor operation signal
    Front washer switch is ON
    Below 1 V
    Front washer switch is OFF
    10 to 14 V
    PB (A39-6) - Body ground
    W - Body ground
    Headlight cleaner motor signal
    Headlight cleaner switch ON,
    headlight control switch except LO
    10 to 14 V
    Headlight cleaner switch ON,
    headlight control switch LO
    Below 1 V
    If the result is not as specified, the relay may have a malfunction.