Illuminated MIL with DTC P0420: Warm Up Catalyst Efficiency Below Threshold, recorded in the ECM. An...
Mitsubishi technical service bulletin TSB-12-13-005 for 2008-2010 Mitsubishi Outlander, 2009-2010 Mitsubishi Lancer and 2010 Mitsubishi Lancer Sportback.
- Bulletin number
- TSB-12-13-005
- Component
- Electrical system: software
- Summary
- Some affected vehicles may display an illuminated MIL with DTC P0420: Warm Up Catalyst Efficiency Below Threshold, recorded in the ECM. An incorrect parameter in the judgment criteria may cause a false MIL (mis-detection of a fault when an abnormal condition is not present). This TSB provides dealers with a procedure to reprogram the ECM with new software to correct the condition.
Owners of these vehicles have filed 40 complaints in the electrical category.
Vehicles covered
- Mitsubishi Outlander 2008-2010 200820092010
- Mitsubishi Lancer 2009-2010 20092010
- Mitsubishi Lancer Sportback 2010 2010
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