Re: brown wire alarm problem please help
1. You should replace the temperature switch that is at the end of the broken wire unless the wire can be spliced.
2. In most cylinder heads of that type, the temperature switch is behind a threaded cover which can obviously be removed with a small wrench. The tan wire runs directly through the center of the cover to the temperature switch.
Thermostats control the flow of cooling water after it passes through the engine and have nothing directly to do with the warning system.