Lastly, the 1984 VW Vanagon wiring diagram shows all the components located inside the vehicle. This includes two light bulb indicators, heater switches, door switches, power steering system, suspension switches, and so forth. All these components are connected to the main harness present within the engine bay and provide the necessary inputs.. The Vanagon wiring diagram is divided into two main sections - the main wiring diagram and the auxiliary wiring diagram. The main diagram consists of the engine, battery, alternator, fuel system, air conditioning, heating, and climate control systems. It includes detailed diagrams of their specific components, such as the ignition switch.
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The following references late model 89-91 Tintops which contain the AC wiring in the Left rear panel I wanted to consolodate some good advice gleaned by comments on Dave's AC thread and also from a thread on the Vanagon Technical Depository Facebook group concerning a post where the OP's AC wiring system had caught fire.. The wiring diagram shows it as normally closed above 38°F it is easily bypassed if need be. I question the necessity of it actually. It does protect against accidentally running the compressor in sub freezing temperatures. It is a "fail safe" redundancy to common sense I guess.