I'll have to check, but if I recall correctly, my '94 HiLo uses a different bulb in the interior fixtures.
All my interior bulbs are dual-contact 1057 bulbs, if I recall correctly. My exterior light bulb is a single-contact bulb.
Do you have a test light? Verify power/current/continuity before you do anything else. Mine LOOKED as though all the connections were well made - but the test light showed otherwise. Lead me right to the weak spot. Quick tidy up on the connection, correct bulb install, and SHAZAAM - we now have a working exterior light.