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OBD Codes > Ford > p0541

Ford Information

DATSC provides free error code information for Ford vehicles and is provided free of charge.

Country & Continent of Origin: United States (America)

Intake Air Heater "A" Circuit Low


- Engine Light ON (or Service Engine Soon Warning Light)


- Open or short intake air heater relay circuit condition - Intake air heater relay poor electrical connection - Faulty Intake Air Heater Relay The Error code is generally activated on detection of the following conditions: The P0541 code is det



The engine control module (ECM) uses an intake air heater (IAH) to warm the incoming air for proper cylinder combustion. The ECM grounds the control coil of the IAH relay to energize the heater during cold operation. The ECM sends a bias voltage on diagno