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The A/C Condenser/Radiator Fans Do Not Run at High Speed, But Do Run at Low Speed (Without Climate Control)

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

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

Do the following troubleshooting as needed:

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

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

Also check for

HVAC DTCs How to Troubleshoot the Heating and A/C Systems (Without Climate Control)

Also check for

Powertrain DTCs

Also check for

Blown fuses No. B30 (30 A) and No. B29 (30 A) in the under-hood fuse/relay box

Also check for

Poor ground at G203

Also check for

Poor or loose connections at the terminals