I just replaced it on my daughters 94 Shadow and it's likely to be in the same place. Remove about 6 Phillips head screws around the perimeter of the lower dash panel under the steering column (and one inside the fuse panel cover), and lower it to floor. It was located in the upper right hand corner of the exposed area attached to the A/C duct. Disconnect the 2 wire plug. Remove the flasher module (by pulling downward). The replacement part will likely not have the the small oval tab at the top for mounting (I used the handymans secret weapon) so it wouldn't rattle around inside the dash. a zip-tie may work.
it is under the dash just left of the steering column it is a round flasher that helps the turn signals work. hope this helps
Check the glove compartment
See sources and related links below for 1993 Dodge Shadow tail light, brake light and turn signal light bulb part numbers.
The daytime running light module is located behind the front driver's side fender below the turn signal. It is easy to see from below.
You can find the 1991 Dodge Shadow thermostat in the thermostat housing. The thermostat housing will be on the front of the engine.
The fuel filter is under the car, mounted in front of the fuel tank on a Dodge Shadow.
Most are located inside the fuel tank.
Next to the battery.
I think it is located inside the gas tank
1994 dodge shadow has a timing belt located on the right hand side of the motor. I know as I just installed a new head on my shadow.
Dodge does not use inertia/reset switches
under hook by battery.