I have a 1999 jeep grand cherokee with a p1698 code all the gauges stop working on the dash and the engine l;ight with all the other indercater lights stay on every thing else in the car is working except the power windows when this happens it does it at least 3 or 4 times a day

code p 0443 refers to evaporative emission (EVAP) canister purge valve ---circuit malfunction====causes ---wiring--- EVAP canister purge valve ---ECM
code p0308 refers to cylinder 8 ---misfire detected ====causes ---engine mechanical fault ---wiring----ignition/ fuel system--- injector---ECT/MAF sensor---ECM
I am thinking here that it restarts , not after cooling , but after the vacuum in the fuel tank has lessened and allowed fuel to be pumped to the injectors and the fuel pressure is re-established
if that is the case then a weak injector or partially blocked injector will misfire under those conditions
I would fix the purge valve so that the tank vents properly and the rest may go away

Alot of times, this concern has to do with the solder joints on the Cluster. If you take it out and resolder those joints or have them resoldered by someone else, it might just fix your problem. Especially, if this code is accompanied by intermittent gauges and cluster operation.

You have some transmission related problem

With a code reader connected to the DTC connection, are there any trouble codes stored? Is there an engine light lit? You will need a code reader to at least start a diagnosis and also a fuel pressure gauge.

You just go to the link I attached I'm sure you will get the solution of your problem
2000 Jeep Grand Cherokee

its caused by moisture damage my friends dad has the same exact problem

check the oil descending unit or ur oil pump might b clogged up with soot, just some advice hope it works

Fuel level sending units are known to go bad on these.

you need to go over your entire wiring harness, under the hood and inside the dash. Start with the ground wire on the battery and work your way inside. It sounds like there is a loose ground wire somewhere

Sir,
check this link for ur problem
Under the hood on the driverside of the cherokee is the PCM or Powertrain Control Module. The Transmission Control Module or TCM is under the dash on the driverside. It's actually kinda of small, I would guess 4 inches by 3 inches. with what look like wings coming off the sides and two bolts. 

link 2


Thanks Good Luck
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