P0542 OBD II Trouble Code Intake Air Heater A Circuit High

How to diagnose, repair, and info on symptoms and causes of a P0542 engine code which applies is a high circuit condition on diesel vehicles with an air intake heater. Also includes links to relevant forum discussions on the code.

Symptoms of P0542 OBD II Trouble Code

Common Causes of P0542 OBD II Trouble Code

Severity of P0542 OBD II Trouble Code

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