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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1572 (6.7L Diesel - DTCS P0402 To P0653 - 2500 Hd) >> DTC Troubleshooting >> P0420-Catalyst System Efficiency Below Threshold Bank 1 >> Set Condition

Set Condition

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The Powertrain Control Module (PCM) Will Set The Fault If It Detects That The Aftertreatment Diesel Oxidation Catalyst (Doc) Is Not Present In The Aftertreatment/Exhaust System.

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