Symptom hub
A/C Gets Warm at Idle: When a Cooling-Fan Fault Is the Real Story
If cabin air is cold while moving but warms up at stoplights, poor condenser airflow belongs near the top of the list. That makes cooling-fan control faults, weak fan power and ground, or a missing high-speed fan stage more useful than blind refrigerant guesses.
Likely related codes
Start your diagnostic path here
P0480 — Cooling Fan 1 Control Circuit Malfunction P0481 — Cooling Fan 2 Control Circuit Malfunction P0482 — Cooling Fan 3 Control Circuit Malfunction P0483 — Cooling Fan Rationality Check Malfunction P0484 — Cooling Fan Circuit Over Current P0485 — Cooling Fan Power/Ground Circuit Malfunction P2181 — Cooling System Performance P0217 — Engine Coolant Overtemperature Condition