P2606 OBD II Trouble Code Intake Air Heater B Circuit Range Performance

How to diagnose, repair, and info on symptoms and causes of a P2606 engine code which applies to diesel vehicles with an air intake heater B. This indicates a range or performance issue. Also includes links to relevant forum discussions on the code.

Symptoms of P2606 OBD II Trouble Code

Common Causes of P2606 OBD II Trouble Code

Severity of P2606 OBD II Trouble Code