The wire colors I found are identical to what you report, except one is red/green instead of red/blue, or vice versa, and would be in that location. Mitsu is notorious for using the same wiring harness and just leaving floppers for uninstalled options. Look and see if you have a similar conntector on the dside and/or rear wheels that's unconnected...

I assume that everything is working?
The 92-95 fsm does not have wiring harness diagrams with connector locations like the earlier models. The connectors are still numbered to correlate to the harness diagrams, but all you get is the wiring schematic. There are only a limited number of connector types used in mitsu's. A 4 wire is usually the same wherever used, except exposed locations tend to use weatherpaks...