# Service bulletin 18\-056\-22

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10214630
- Published by NHTSA: 2022\-06\-27
- Manufacturer's number: 18\-056\-22
- Manufacturer's date: 2022\-05\-24
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING

## NHTSA's summary

Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module \(ECM/PCM\) 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 DTCs have been set: P0506\-00 \- Idle Control System RPM \- Lower Than Expected. P0607\-00 \- ECU Internal Performance. P20E8\-00 \- Reductant Pressure Too Low. P0301\-00 \- Cylinder 1 Misfire. P0302\-00 \- Cylinder 2 Misfire. P0303\-00 \- Cylinder 3 Misfire. P0304\-00 \- Cylinder 4 Misfire. P0305\-00 \- Cylinder 5 Misfire. P0306\-00 \- Cylinder 6 Misfire. P0299\-00 \- Turbocharger Underboost. P1D73\-00 \- AGS Performance. P0626 \- Generator Field Control Circuit High. P218F \- Reductant No Flow Detected. P2002 \- Diesel Particulate Filter Efficiency Below Threshold. P24A5 \- EGR Cooler Bypass Bank 1 Control Stuck. P0191 \- Fuel Rail Pressure Sensor Circuit Performance. P0461 \- Fuel Level Sensor 1 Performance. P0401 \- EGR System Performance. P20EE \- NOx Catalyst Efficiency Below Threshold. P061A \- Level 2 Torque Performance. P061B \- Internal Control Module Torque Calculation Performance. P061E \- Internal Control Module Brake Signal Performance. P062C \- Etc Level 2 MPH Performance. P0106 \- Manifold Absolute Pressure Sensor Performance \(In extreme cold ambient temperatures\). P0116 \- Engine Coolant Temperature Sensor Performance. P0420 \- Catalyst System Efficiency Bank 1. P1507 \- Crankcase Filter Restriction. P20E8 \- \(Diesel Exhaust Fluid\) Reductant Pressure Too Low. P203F \- \(Diesel Exhaust Fluid\) Reductant Level Too Low. P226C \- Turbocharger Boost Control ?A? Slow Response \(In extreme cold ambient temperatures\). P2579 \- Turbocharger Speed Sensor Circuit. U0101 \- Lost Communication with TCM. U02A3 \- Lost of Communication with PM Sensor. U3017 \- Control Module Timer/Clock Performance. The customer may also notice one or more of the following: PTO Allows E\-Sto

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10214630-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10214630-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Transmission and driveline

## Trouble codes named

P0106, P0116, P0191, P0299, P0301, P0302, P0303, P0304, P0305, P0306, P0401, P0420, P0461, P0506, P0607, P061A, P061B, P061E, P0626, P062C, P1507, P1D73, P2002, P203F, P20E8, P20EE, P218F, P226C, P24A5, P2579, U0101, U02A3, U3017

## Vehicles listed

- 2019 RAM 3500
- 2019 RAM 4500
- 2019 RAM 5500

## Recalls for the same vehicles and component

- [2021360](/recalls/tc/2021360.md), 2021-06-10: Engine
- [21V439000](/recalls/nhtsa/21V439000.md), 2021-06-10: ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION
- [2020396](/recalls/tc/2020396.md), 2020-08-27: Engine
- [20V511000](/recalls/nhtsa/20V511000.md), 2020-08-27: ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; ELECTRICAL SYSTEM:SOFTWARE
- [2020025](/recalls/tc/2020025.md), 2020-01-24: Powertrain
- [20V043000](/recalls/nhtsa/20V043000.md), 2020-01-24: POWER TRAIN:AUTOMATIC TRANSMISSION

## Other bulletins for the same vehicles and component

- [9100901](/bulletins/11037344.md), 2026-09-17, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [114254](/bulletins/11036754.md), 2026-09-03, Service bulletin: ENGINE. RADIATOR \- ENGINE COOLING
- [114255](/bulletins/11036753.md), 2026-09-03, Service bulletin: ENGINE. RADIATOR \- ENGINE COOLING
- [113744](/bulletins/11035981.md), 2026-08-06, Service bulletin: ENGINE; ELECTRICAL SYSTEM. SENSOR \- TURBOCHARGER SPEED
- [113742](/bulletins/11035980.md), 2026-08-06, Service bulletin: ENGINE; ELECTRICAL SYSTEM. SENSOR \- TURBOCHARGER SPEED
- [113069](/bulletins/11034910.md), 2026-07-08, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. SWITCH – HEADLAMP
- [113070](/bulletins/11034909.md), 2026-07-08, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. SWITCH – HEADLAMP
- [112906](/bulletins/11034373.md), 2026-07-02, Service bulletin: ENGINE. BEARING \- CRANKSHAFT THRUST and KIT
- [112906](/bulletins/11034337.md), 2026-07-02, Service bulletin: ENGINE. BEARING \- CRANKSHAFT THRUST and KIT
- [S1623000028 Rev. K](/bulletins/11033975.md), 2026-06-18, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.

JSON: [/v1/bulletins/10214630](/v1/bulletins/10214630)

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