RAM

18-072-21

Manufacturer communications

Publication date: 2021-08-12
Received by NHTSA: 2022-08-22
NHTSA record numbers: 10218565

Manufacturer summary

Original wording in English

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module (ECM) / Powertrain Control Module (PCM) with the latest available software. 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 (DTCs) have been set: P0607-00 - ECU Internal Performance. P0299-00 - Turbocharger Underboost. P1451-00 - Diesel Particulate Filter System Performance. The following improvements are also included in this update: Oil pressure switch modifications. Urea (DEF fliud) level sensor calibration update, to help prevent bumps in DEF level gauge.

NHTSA manufacturer communications ↗

Reported code forms

P0299 P0607 P1451

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

RamP0299-00

Turbocharger Underboost

NHTSA 10159912 · NHTSA 10176587 · NHTSA 10180254

RamP0607-00

ECU Internal Performance

NHTSA 10168471 · NHTSA 10173360 · NHTSA 10173368

RamP1451-00

Diesel Particulate Filter System Performance

NHTSA 10168471 · NHTSA 10176587 · NHTSA 10180254

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Make	Model	Model year
Ram	3500	2021
Ram	4500	2021
Ram	5500	2021

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