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Service bulletin R1805

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 id10143282
Published by NHTSA2018-07-30
Manufacturer's numberR1805
Manufacturer's date2018-06-20
NHTSA componentENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

NHTSA's summary

ECM Reprogram Voluntary Emissions Service Campaign This bulletin applies only to vehicles equipped with SR or Nismo trim level packages. ***** Campaign Summary***** Nissan has reclassified the previously announced quality action (P8307) for new vehicle inventory as a Voluntary Emissions Service Campaign to update the Engine Control Module (ECM) software to prevent permanent storage of a DTC as a result of a Multiway Control Valve (MCV) malfunction on 853 specific 2018 Nissan Sentra (B17) SR and NISMO vehicles equipped with the MR16DDT engine. If a MCV malfunction occurred and was repaired, the current ECM logic will allow a technician to reset the Malfunction Indicator Lamp (MIL), but the DTC will remain stored in ECM memory. Resulting in Inspection/Maintenance (I/M; a.k.a. smog test) failure when a DTC check is performed at an inspection station. ***** What Dealers Should Do ***** 1. Verify if vehicles are affected by this Voluntary Service Campaign using Service Comm or DBS National Service History ? Open Campaigns I.D. R1805. 2. Dealers are requested to repair any affected vehicles in dealer new or pre-owned inventory to ensure customer satisfaction. - New vehicles in dealer inventory can also be identified using DBS (Sales-> Vehicle Inventory, and filter by Open Campaign). - Refer to NPSB 15-460 for additional information 3. Dealers should use NTB18-044 to correct any vehicles subject to this campaign. 4. Once repaired, dealers should submit the claim, using the claims coding provided, and release the vehicle.

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

Electrical system, Engine

Vehicles listed
NISSAN SENTRA2018

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

Other bulletins for the same vehicles and component
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