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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 220 (6.7L - DTCS P21C4 To U1601 - 3500 Cab & Chassis) >> Diagnosis And Testing >> P2262-Turbocharger Boost Pressure Not Detected - Mechanical >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The Variable Geometry Turbocharger (VGT) is electronically activated by the Powertrain Turbo Actuator. The Electronic Turbo Actuator is a smart device and receives information via the J1939 BUS from the Powertrain Control Module (PCM). The Electronic Turbo Actuator performs its own diagnostics and reports failures back to the PCM using the J1939 BUS. The PCM then decodes the error message and converts it to a fault code. A mobile desoot should not be performed while investigating this fault. The PCM lights the MIL lamp immediately after the diagnostic runs and fails. The PCM will turn off the MIL lamp immediately after this diagnostic runs and passes in four consecutive drive cycles.

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