I'm getting no guages & no bus code on odometer. Its a 99 Cherokee sport. I put a scanner on it & it had 2 codes. I can't find them in my book or jeep forum. The codes are #1- P1698 & #2- P1694.

You mean it cranks but does not start, right ?
The NoBus on the display means the cluster is not talking to the computer. That could be a wiring problem or a component problem.
Have you checked the engine computer for trouble codes ?

The instrument cluster or ignition switch module,
lost communication with the electrical bus or wiring
system & can not be seen by other modules!

Need wiring diagrams & factory trouble charts to diagnose
the fault

May be something on the internet about it ,on your vehicle

Google the issue

The p1686 code means :
No SKIM BUS Message received.
possible causes:
1. Invalid SKIM key.
2.wiring harness intermittent defect.
3.PCM DEF INTERNAL PCI BUS OPEN.
4.PCM PCI BUS CIRCUIT OPEN.
The first thing I would do is check the wiring harness unplug and check for loose pins then reconnect. Hope this helps.

The code refers to the catalytic converter efficiency. It can be a plugged converter. leaking exhaust, vacuum leak, fuel pressure problem, or even low compression. You really need to have the ECU read with a scanner that will give you the POXXXX code instead of the 2 digit code. This will help diagnosis the problem much better.

the window thing is easy on the driver side under the plastic molding that covers your wire harness right behind the front seat you should find a splice with 4 wires i think yellow if i remember correctly it will probobly be all corroded and ready to brake. cut clean and resplice the should work fine. the no bus i am really not sure i would guess an electrical problem there too check your fuses get a chiltons or haynes repair book and look at the wiring diagram and see where the gauges get there power from. hope this helps

could be the o2 sensor, check with a hand scanner if there are any trouble codes stored in the computer.

remove the cluster clean contacts with dielectric spray then apply dielectric grease to connectors and reinstall if this doesnt help you need a cluster

how did you fix it

Hello
Welcome to FixYa
in the driver side kick panel down by your foot(behind it) there is BCM body control mogul there is 1 of 2 problems there can be a loose ground here or the mogul has gone bad here is a link to have it repaired,
RD
http://ecmoutlet.com/

There is a one-wire communications bus system in these cars, called by Chrysler the "PCI" bus. The symptoms described strongly suggest a failure of bus communication. Depedning upon whichpost one reads, it appears either to be a partial or imtermittent failure or a total failure. For example, the information for the guage readings on the instrument panel comes from PCM (Powertrain Contol Module) transmissions sent over the PCI bus. No info, no guage readings. The problem is that, as far as is presently known, there does not exist any 3d party (aftermarket) equipment to communicate over the bus, and, according to a jeep tech interviewed today, one will not get any good hints from anything that appears at the OBDII connector (which can be read by any of various generic scan tools.) There is a proprietary Chrysler device called a DRB-III (that is now sold at some automotive outlets for a little over three thousand dollars for the unit) that will communicate with PCI devices about what they are hearing and saying over the PCI bus.

So... you can test, so of, an instrument panel, by holding in the odometer reset button while turning the key on. The guages will sweep, all the lights will come on, the segments will illuminate in sequence if the instrument panel is good.

Beyond which, you need to get the car to a DRB-III scanner, see which module (about eight choices -- door modules, a radio connection, etc.) is messing up communication on the PCI bus.