P1805 Lexus Transmission 4-Wheel Drive High Indicator Open Circuit

P1805 Lexus Transmission 4-Wheel Drive High Indicator Open Circuit

What about the obd code?
  • A brake switch signal is not sent to ECM for an extremely long time while the vehicle is driving.
    • Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1805 Lexus Description

    The VIAS control solenoid valve cuts the intake manifold vacuum signal for power valve control. It responds to ON/OFF signals from the ECM. When the solenoid is off, the vacuum signal from the intake manifold is cut. When the ECM sends an ON signal the coil pulls the plunger downward and feeds the vacuum signal to the power valve actuator.

    Lexus Vehicle:Lexus ES,Lexus GS,Lexus GX,Lexus HS,Lexus IS,Lexus LFA,Lexus LS,Lexus LX,Lexus RX,Lexus RX,Lexus SC,Lexus GS350,Lexus GS450H,Lexus IS250,Lexus GX460,Lexus IS350,Lexus LS460,Lexus LS600H,Lexus LX570,Lexus RX350
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