A/C Condenser Fan Does Not Run at High Speed (But Both Fans Run at Low Speed and A/C Compressor Operates With A/C On)

The A/C condenser fan does not run at high speed (but both fans run at low speed and the A/C compressor operates with the A/C on)

Diagnostic Procedure:

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

Also check for:

- HVAC DTCs Initial Inspection and Diagnostic Overview
- Cleanliness and tightness of all terminals