u/Glum-Ad8854

At my wits end and about to wire in a standalone fan, but figured I’d ask to see if anyone’s had a similar issue. My cooling fan will not turn on when the engine is up to temp, or when the A/C is turned to MAX AC. At the beginning of the code-reading process, both low and high speed come on with no issue, telling me the CCRM is fine, within the last year, Thermostat, ECT sensor, and the fan itself hae been replaced. Short of replacing the harness, I have somewhat hit a dead end, car is a 1994 Mustang GT, any ideas?