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Update September 2004: Colour Wiring Diagrams

Warren Townsend (Volvo 1800-120 Club Australia) had some time ago very carefully edited and coloured the electrical schematics of the 1800E and 1800ES models. They are available in PDF format and can therefore be enlarged or printed in sections as required.

During the revision of his Volvo 1800E Warren also noticed that the original wiring diagrams in the workshop manuals are not so easy to read, only black and white and pressed into A4 format. So he first draws the plan for his car. In the Volvo community his work met with great interest, he was asked to draw a schematic for a Volvo 1800ES. And that was the start of the project "All schematics of the models P1800, 1800S, 1800E and 1800ES, from 1969 to 1973".

A back-breaking work, to gather all schematics together, to sift them and then to create the different layouts in vector graphics! The names of the components are entered in the plan and do not need to be searched for in a separate table.

We would like to thank Warren, who provides the electricians with such clear circuit diagrams free of charge!

A tip: Print out the desired plan in A3 format and laminate it.

Click here for the workshop and the wiring diagrams.

Throttle position switch - How it works

Warren Townsend (animation) and David Farrington (technical advice) present the operation of the two throttle switches from the 1970/1971 and 1972/1973 model years.

The functions are carefully explained here.

Tachometers Used in Volvo P1800

S. Smith and Sons Ltd is the supplier of the tachometers installed in the Volvo 1800 series. Between 1961 and 1973, five different versions were installed.

They differ in their external design, the dials and the electronic components. The mechanical part, however, is the same in all versions.

Warren Townsend has taken the effort to document the versions, not only to describe them carefully, but also to present them with illustrations.

« This document is intended as an information and historical source for clearly identifying instruments fitted to Volvo 1800 cars across the model range. »

The two-page document can be downloaded as a PDF file.