P0406 OBD II Trouble Code Exhaust Gas Recirculation Sensor A Circuit High

Detailed information on troubleshooting and repairing a P0406 DTC code which has to do with the EGR sensor A circuit high. Also includes links to relevant forum topics on the code.

Symptoms of P0406 OBD II Trouble Code

Common Causes of P0406 OBD II Trouble Code

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