Skoda P0543 Intake Air Heater Incorrect Voltage

Description

OBD-II Trouble Code Description for P0543 Skoda

Intake Air Heater “A” Circuit Open

What does this mean?

OBD2 Code P0543 Skoda 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 the heater during cold operation. The ECM sends a bias voltage on diagnostic circuits one and two. If this voltage is not pulled low when the relay is OFF, or is high with the relay ON, DTC P0543 Skoda will set. The ECM will only store info on first failure, It triggers the SES light on the second failure.

Symptoms

Possible sumptoms of OBD code P0543 Skoda
– Engine Light ON (or Service Engine Soon Warning Light)

Causes

Possible causes of OBD code P0543 Skoda
– Inatake air heater circuit open or shorter – Faulty intake air heater relay – Faulty intake air hearter

Possible Solutions


The OBD2 Code Information Be Applicable For Skoda:

2013 Skoda Rapid,2013 Skoda Octavia,2013 Skoda Citigo,2011 Skoda Roomster,2011 Skoda Fabia,2010 Skoda Superb,2009 Skoda Superb,2009 Skoda Octavia,2008 Skoda Fabia,2007 Skoda Fabia,2006 Skoda Roomster,2006 Skoda Octavia,2005 Skoda Octavia,2005 Skoda Fabia,2003 Skoda Superb,2003 Skoda Octavia,2003 Skoda Fabia

 

Note:

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