P1805 Audi Transmission 4-Wheel Drive High Indicator Open Circuit
What about the obd code?
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1805 Audi 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.
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