Looks like a solid state driver because with the vent valve electrical connection disconnected I originally could read a +3.5 bias voltage which looks like a base to collector voltage without an emmiter groung return indicating a faulty transistor. Is the control driver internal or external to the ECU?
Missing return control from ECU to emmission canaster vent valve. on 2003 Volkswagen EuroVan
Asked by for the 2003 Volkswagen EuroVan
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