Wiring Diagrams
Taken from this post on the Samba – Thanks Captain Spalding
Heres some Useful Wiring Diagrams
Some of them are large, so please be patient.
181_Current_Flow_Diagram_4-73.pdf
As I mentioned, a reasonably faithful PDF reproduction of a 181 current-flow diagram dated 4/73. It’s the North American version, with the wire color change for the elephant ear tail lights and front turn signals with the shared bulb for turn signals and running lights, as well as the side marker lights. It also includes descriptions, which the “yellow” diagram lacks.
181_Wiring_Diagram_4-73.pdf
Many people find the current flow diagram to be a little daunting to decipher. This drawing is a translation of the current flow diagram into the more friendly component-based style, with pictographic representations of the electrical components roughly laid out as they are in the car. Again, it’s a North American version, and includes elephant ear tail lights, the windshield wiper switch as a stalk on the column vs. a knob on the dash, etc.
181_Fuse_Block_Wiring_Detail.pdf
Just what it says – a diagram of the Fuse Box showing fuse ratings, wire sizes and colors, and terminal information where appropriate. I have posted earlier versions of this diagram in various threads. If you downloaded a prior version, please trash it and use this one. The whole point of this exercise is to make the information as definitive as possible, and the last thing we need is old inaccurate versions circulating around. Prior versions are undated. These new diagrams have a date in light gray type in the lower right corner.
181_Tail_Light_Wiring_Detail.pdf
This drawing depicts the tail light wire colors as they change at the two 4-pin connectors in the engine compartment. This issue has come up several times on the board, so I thought it deserved its own drawing. As with the fuse block drawing, if you have a previous (undated) version, please trash it.
How_to_Read_Current_Flow.pdf
A concatenation of several pages which explain how to read current flow diagrams. For some reason, scans of those pages are rarely posted together, so I put everything on one page.