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Service bulletin 18-104-22

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10214639
Published by NHTSA2022-06-27
Manufacturer's number18-104-22
Manufacturer's date2022-05-26
NHTSA componentPOWER TRAIN

NHTSA's summary

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the 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: P0556 - Brake Booster Pressure Sensor Circuit Performance. P0340 - Cam Position Sensor Circuit - Bank 1 Intake. P0345 - Cam Position Sensor Circuit - Bank 2 Intake. P0365 - Cam Position Sensor Circuit - Bank 1 Exhaust. P0390 - Cam Position Sensor Circuit - Bank 2 Exhaust. Customer may describe the following:Fuel odor during frequent stop and re-start driving, during high ambient temps. The following software enhancements are also available: OBD calibration turned off DTC U0463 - Fuel Level Implausiblemessage code and will now be detected withDTC P0463 - Fuel Level Sensor 1 Circuit High. More robust trailer brake module enhancements for 3rd party aftermarket designs. Cam/crank diagnostic has been turned from a 1-trip to a 2-trip MIL. Change fuel level legislative reporting from a voltage to a percent scale.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Trouble codes named

P0340, P0345, P0365, P0390, P0463, P0556, U0463

Vehicles listed
RAM PROMASTER2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.