brakes want come on on 1990 Jeep Cherokee

put a new brake booster on and plug brake light swicth up and it worked but wood not go off so unplug them and now they want come on

Asked by for the 1990 Jeep Cherokee
2 answers
Brakes won't come on -- or brake lights???
It's hard to say whats wrong without being able to do some tests first hand.There is a company that independent auto repair shops buy their information from that the same information inexpensively to do it yourselfers. They have good theory of operation over views and descriptions. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
Autozone have some popular workshop manuals for free on line once you register (for free) on their website
and get an online repair manual subscription.