Condenser/Radiator Fans Do Not Run at High Speed, But Do Run at Low Speed (With Climate Control)

The condenser/radiator fans do not run at high speed, but do run at low speed

V6 Engine with Climate Control

Diagnostic Procedure:

1. Probable cause: Malfunction in the fan(s) high speed circuit

2. Do the following troubleshooting as needed:

3. A/C condenser fan high speed circuit troubleshooting A/C Condenser Fan High Speed Circuit Troubleshooting

4. Radiator fan high speed circuit troubleshooting Radiator Fan High Speed Circuit Troubleshooting

Also check for:

- HVAC DTCs How to Troubleshoot the Climate Control System
- Powertrain DTCs Initial Inspection and Diagnostic Overview
- Blown fuses No. 5 (20 A) and No. 3 (MAIN FAN MTR) (30 A) in the under-hood fuse/relay box
- Poor ground at G302
- Poor or loose connections at the terminals