Introduction
The author, Tom Camey, shares his experience with his brother’s Elan coupe, which had various problems, including issues with lights and turn signals. Tom, being the “wizard of electrons,” took it upon himself to fix the issues and shares his findings.
The article discusses the complexities of Lotus wiring diagrams, which are approximations and often not helpful. Tom had to figure out the circuit himself, tracing wires and finding the mysterious box with nine terminals.
The Mystery Box
Tom discovered that the mystery box contained two relays, which allowed the engineer to satisfy US laws about hazard flashers and turn signals while using the same light modules in the back.
The article goes on to explain how the circuit works, including the use of dash lights, hazard switches, and relays. It also provides diagrams and descriptions to help other members understand the circuit and troubleshoot issues.
Manual:
Download: Golden Gate Lotus Club – Elan & Europa (Federal) Indicator & Hazard Light Circuit
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