2016 Mitsubishi Triton (MQ) — Repair Solution

2.4L 4N15 4cyl 16v DOHC VVT Turbo CRD Diesel Auto · Check Engine Light / MIL - On · Engine

Mitsubishi Triton (MQ) Check Engine Light / MIL - On Engine Diagnostic Sequence Available

Vehicle Details

Make: Mitsubishi
Model: Triton (MQ)
Year: 2016
Engine: 2.4L 4N15 4cyl 16v DOHC VVT Turbo CRD Diesel Auto
Kilometres: 110,000
Area: Engine
Category: Check Engine Light / MIL - On

Customer Complaint

The check engine light illuminated with fault code P0420. The vehicle drove normally with no noticeable performance issues, but the code consistently returned about a week after clearing.

Problem Summary

The vehicle logged catalyst efficiency fault P0420 despite normal driving behavior, successful forced DPF regeneration, and no boost or intake leaks detected.

Diagnostic Sequence

The step-by-step diagnostic process used to identify this fault is available to TaT members.

Unlock with Free Trial

Fault Description

The detailed fault description and root cause analysis for this 2016 Mitsubishi Triton (MQ) is available to TaT members.

Unlock with Free Trial

Verified Repair Solution

The confirmed repair procedure for this 2016 Mitsubishi Triton (MQ) is available to TaT members. Includes the verified fix and technician tips.

Unlock with Free Trial

Quick Facts

CodeMITMQ16116
Vehicle2016 Mitsubishi Triton (MQ)
Engine2.4L 4N15 4cyl 16v DOHC VVT Turbo CRD Diesel Auto
ComplaintVisible
Diag. SequenceMembers Only
SolutionMembers Only

Need the Full Fix?

Get the complete diagnostic sequence, verified solution, and technician tips.

More Mitsubishi Repair Solutions

2009 Mitsubishi Triton (MN) 2.5L 4D56T 4cyl 16v DOHC Turbo CRD Diesel Auto · Loss Of Power 2018 Mitsubishi Triton (MR) 2.4L 4N15 4cyl 16v DOHC Turbo CRD Diesel Manual · Loss Of Power 2017 Mitsubishi Triton (MQ) 2.4L 4N15 4cyl 16v DOHC VVT Turbo CRD Diesel Auto · Rough Running - Diesel 2009 Mitsubishi Lancer (CY) 2.4L 4B12 4cyl 16v DOHC VVT MPFI Petrol · Battery Flat / Current Drain 2012 Mitsubishi Triton (MN) 2.5L 4D56T 4cyl 16v DOHC Turbo CRD Diesel Auto · Blowing Smoke 2014 Mitsubishi Lancer (CJ) 2.0L 4B11 4cyl 16v DOHC MPFI Petrol · Battery Flat / Current Drain

Access the Full Repair Solutions Database

Unlock 6,127 verified repair solutions with complete diagnostic details, confirmed fixes, and technician tips.

© 2026 The Automotive Technician (TaT) — www.tat.net.au