What is a no bus signal your 2000 Cherokee won't start any idea where you can start?

Answer 1

Have the Jeep towed to your dealer! The jeep has a computer in it that moniters all of the individual computers for all your power options, a no bus signal means that nothing is talking to each other. The bus is the network for all the computers. This is something that the dealer can fix in a lot less time than anyone by them selfs. It may cost more than you want but if you keep working on it without knowing whats going on you will do more damage than good and it will cost way more than you want to pay. So have it towed in and tell them what you know. --------------------------------------------------------------------------------------------------- There's two possible reasons why this is happening.......the most likely is the Crank Position Sensor and it's located at the back part of the top lip of the transmission. It relays the timing on the top of the flywheel to the computer. I replaced mine myself, but it is a HUGE PAIN TO GET TO.....so it's best to take it to someone to have it done. If you have time to wait for it, you can get the CPS from Quadratech for about $29. The other reason and is VERY UNLIKELY, is the mapping sensor in your dash, behind your guages... Dealerships will probably know both of these, but will charge you an arm, leg and first born to replace it. Hope this helps.....