Close
upvote
Mercury Mariner Hybrid Car Problems

Check Engine Light With Code P0442, P0456, and/or P1450 on Mercury Mariner Hybrid

Problem Description and Solution

The Check Engine Light may illuminate with code P0442, P0456, and/or P1450. These codes are related to the EVAP system. Our technicians tell us that if no EVAP system faults are confirmed, updated software is available for the powertrain control module (PCM) which should correct this concern.

(2 people reported this problem)

Problem Data

RepairPal Verified
Average mileage: (–)
1 model year affected: 2009

Not Your Mercury Mariner Hybrid Problem?

Brake problem? Or maybe a faulty head gasket cylinder?
Learn About Your Car Problems
Search For a Specific Car Problem
Viewing 0 comments