The Radiator Fan Does Not Run At All

The radiator fan does not run at all

Check for PGM-FI DTCs.

K24Z1 engine Initial Inspection and Diagnostic Overview

K24Z6 engine Initial Inspection and Diagnostic Overview

Radiator fan circuit troubleshooting Radiator Fan High Speed Circuit Troubleshooting.

Also check for

Cleanliness and tightness of all connectors