Description OBD-II Trouble Code Description for P0543 Alfa Romeo Intake Air Heater “A” Circuit Open What does this mean? OBD2 Code P0543 Alfa Romeo definition: 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…
Tag: P0543
P0543 Acura Intake Air Heater Incorrect Voltage
Description OBD-II Trouble Code Description for P0543 Acura Intake Air Heater “A” Circuit Open What does this mean? OBD2 Code P0543 Acura definition: 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…
P0543 GMC Intake Air Heater Element Open
Possible causes – Faulty Intake Air Heater relay– Faulty Intake Air Heater– Intake Air Heater harness is open or shorted– Intake Air Heater circuit poor electrical connection When is the obd code mean? The Engine Control Module (ECM) sends a bias voltage on diagnostic circuits one and two. If this voltage is not pulled low…
P0543 DODGE Intake Air Heater Incorrect Voltage
Possible causes – Faulty Intake Air Heater relay– Faulty Intake Air Heater– Intake Air Heater harness is open or shorted– Intake Air Heater circuit poor electrical connection When is the obd code mean? The Engine Control Module (ECM) sends a bias voltage on diagnostic circuits one and two. If this voltage is not pulled low…