The A/C condenser/radiator fans do not run at high speed, but do run at low speed with the A/C on(Heating/Air Conditioning)

Diagnostic Procedure 

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

Do the following troubleshooting as needed:

• A/C condenser fan high speed circuit troubleshooting - Refer to: A/C Condenser Fan High Speed Circuit Troubleshooting Radiator and A/C Condenser Fan Low Speed Circuit Troubleshooting
• Radiator fan high speed circuit troubleshooting - Refer to: Radiator and A/C Condenser Fan Low Speed Circuit TroubleshootingRadiator Fan High Speed Circuit Troubleshooting

Also Check for 

• HVAC DTCs 
• PGM-FI DTCs - Refer to: How to Troubleshoot the Fuel and Emissions SystemsHow to Troubleshoot the CVT System(CVT System)
• Blown fuse No. A2-10 (20 A) and/or No. A8 (7.5 A) in the under-hood fuse/relay box
• Poor ground at G302
• Poor or loose connections at the terminals