'92-96 Bronco Brake Warning
(F-series wiring slightly different)
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The ignition switch connection in '93-96 Broncos is just for the bulb test during cranking, but in F-series & '92 Broncos, it's also where the circuit inputs to the RABS module.
Park/e-brake switch
Standard DS3398 
![brakewarn92.jpg '92-96 Bronco Brake Warning
(F-series wiring slightly different)
[url=http://www.supermotors.net/registry/media/933122][img]http://www.supermotors.net/getfile/933122/thumbnail/tempsnsrdrl.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/980963][img]https://www.supermotors.net/getfile/980963/thumbnail/reservoir.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1166756][img]https://www.supermotors.net/getfile/1166756/thumbnail/3fluidsbrake.jpg[/img][/url]
The ignition switch connection in '93-96 Broncos is just for the bulb test during cranking, but in F-series & '92 Broncos, it's also where the circuit inputs to the RABS module.
Park/e-brake switch [url=https://www.amazon.com/dp/B01BTU04Q4]Standard DS3398[/url]](https://www.supermotors.net/getfile/1101054/fullsize/brakewarn92.jpg)