The A/C Condenser Fan Runs, But the Radiator Fan Does Not Run at All

The A/C condenser fan runs, but the radiator fan does not run at all

Check for PGM-FI DTCs Initial Inspection and Diagnostic Overview.

Radiator fan circuit troubleshooting (open) Radiator Fan Circuit Troubleshooting - Open.

Also check for

Cleanliness and tightness of all connectors