Check Engine Light With Code P0400 on Mercury Milan Hybrid

Problem Description and Possible Solution

The Check Engine Light may illuminate with code P0400 stored for an exhaust gas recirculation (EGR) fault. Our technicians tell us if no EGR system faults are noted, updated powertrain control module (PCM) is available which should correct this issue.

Problem Data
RepairPal Verified
Average mileage: (–)
1 model year affected: 2010
1 person reported this problem