Both Fans Don't Run High Speed, A/C On (But Both Fans Run Low Speed, Compressor Operates With A/C On)

Both fans do not run at high speed with the A/C on (but both fans run at low speed and the A/C compressor operates with the A/C on)

ECT troubleshooting: ECT sensor 2 circuit low voltage P2184, ECT sensor 2 circuit high voltage P2185

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Powertrain DTCs Initial Inspection and Diagnostic Overview

Also check for

Cleanliness and tightness of all terminals