Can you read a wiring diagram and do you have a volt-ohm meter?
Use the diagram and a VOM to trace the wiring.
http://jeep.larrynova.com/93/WIRING_DIAGS.pdf
You do not have short, BTW. That is a often misused term. A short circuit means the wiring circuit is made shorter by touching somewhere and rarely happens in autos. Most likely you have a broken or disconnected circuit.