The A/C condenser/radiator fans do not run at high speed, but do run at low speed with the A/C on
Diagnostic Procedure
Probable cause: Malfunction in the fan(s) high speed circuit

Do the following troubleshooting as needed:
Also Check for
K24W1 engine: Blown fuse No. A12-5 (SUB FAN MTR) (20 A) or No. A23 (7.5 A) in the under-hood fuse/relay box
J35Y1 and J35Y2 engines: Blown fuse No. A12-9 (MAIN FAN MTR) (30 A) or No. A23 (7.5 A) in the under-hood fuse/relay box
Poor ground at G301
Poor or loose connections at the terminals