Powertrain, generic (extended)

P2C41 Fan 3 Performance/Stuck Off

Check engine lightOn

EmissionsRelevant

Drive cycleRequired

Limp modePossible

P2C41 judges the outcome rather than the wiring: fan 3 is commanded on and its circuit checks out (otherwise P0482, P0695 or P0696 would appear), yet the controller sees little or no response, usually through speed feedback from a fan module or a missing current draw. No manufacturer publicly documents this code. Audi's 2022–2023 e-tron GT shows what tends to be behind such faults: road debris entering through the wheel housing liner jammed the radiator fans, logged there under P2B30/P2B32. Porsche renewed corroded engine-compartment blowers in pairs on the 2017 911 after a fan failure warning. CARB asks for outputs to be checked for functional response where feasible. Rising temperatures under load follow. Speed deviations are P2CBB/P2CBC.

Likely causes

Fan blades blocked by dirt, stones or leaves

Worn or seized fan motor, corrosion from moisture

Fan control module does not drive the motor

Weak power or ground supply to the fan

Symptoms

Engine temperature climbs in traffic or under heavy load
Weak air conditioning at standstill
Warning lamp or fan failure message

Repair estimate

DifficultyMediumWorkshop job

Parts and labour€80–800

Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

cooling fan 3fan relay 3ecm

References: law.cornell.edu, static.nhtsa.gov, static.nhtsa.gov.