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May 24, 2023 Service bulletin

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL)...

Ram technical service bulletin 1802423 for 2021 Ram 2500 and 2021 Ram 3500.

Bulletin number
1802423
Component
Electrical system
Summary
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTC)s have been set: ? P0299 - Turbocharger Underboost. ? P061B - Internal Control Module Torque Calculation Performance. ? P0755 - Shift Solenoid B (DG7 Only). ? P0765 - Shift Solenoid D (DG7 Only). ? P0401 - EGR System Performance. ? P0755 - 2C Solenoid Circuit. ? P0765 - UD Solenoid Circuit. ? P244A - Diesel Particulate Filter Differential Pressure Too Low. ? P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. ? P242F - Diesel Particulate Filter Restriction - Ash Accumulation. ? P1451 - Diesel Particulate Filter System Performance. ? P2463 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. ? P0607-00 - ECU Internal Performance. ? P0299-00 - Turbocharger Underboost. ? P1451-00 - Diesel Particulate Filter System Performance (Sales Code ETL Only).

Owners of these vehicles have filed 52 complaints in the electrical category.

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