The Radiator Fan Does Not Run For Engine Cooling, But It Runs With The A/C On

The radiator fan does not run for engine cooling, but it runs with the A/C on

Diagnostic Procedure:

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

2. Radiator fan circuit troubleshooting. Radiator Fan Circuit Troubleshooting

Also check for:

- Cleanliness and tightness of all connectors