17-NA-219
Service Bulletin Details
Public Details for: 17-NA-219
This technical bulletin provides to the technician a possible issue with the nox sensor wiring harness and what to do if corrosion is found.
Models from 2018
| 2018 CHEVROLET COLORADO |
| 2018 CHEVROLET EXPRESS |
| 2018 CHEVROLET SILVERADO 2500 |
| 2018 GMC CANYON |
| 2018 GMC SAVANA |
| 2018 GMC SIERRA 2500 |
| 2018 GMC SIERRA DENALI |
Models from 2017
| 2017 CHEVROLET COLORADO |
| 2017 CHEVROLET EXPRESS |
| 2017 CHEVROLET SILVERADO |
| 2017 GMC CANYON |
| 2017 GMC SAVANA |
| 2017 GMC SIERRA |
Models from 2016
| 2016 CHEVROLET COLORADO |
| 2016 GMC CANYON |
File in Section: Bulletin No.: Service Bulletin Date: 17-NA-219 September, 2017 TECHNICAL Subject: Brand: Chevrolet GMC Diagnostic Tip for Malfunction Indicator Lamp (MIL) Illuminated, Auto Stop Inoperative - DTC P249D, P249E, U029D, U029E Set Model: Model Year: VIN: from Engine: from to Colorado 2016 2018 LWN Transmission: to Express 2017 2018 LWN Silverado Models 2017 2018 L5P Canyon 2016 2018 LWN Savana 2017 2018 LWN Sierra Models 2017 2018 L5P Involved Region or Country North America, Israel Condition Some customers may comment that the MIL is illuminated. The technician may find one or more of the following DTCs set: • U029D • U029E • P249D • P249E This condition may be caused by the following conditions: Cause 4787001 Copyright 2017 General Motors LLC. All Rights Reserved. Page 2 September, 2017 Bulletin No.: 17-NA-219 Note: The graphic above depicts an example of a torn and missing seal. • Moisture intrusion past a damaged (1) seal located in the connector for the NOx sensor wiring harness. • Missing (2) seal located in the connector for the NOx sensor wiring harness. If you encounter a vehicle with the above concern, perform normal diagnostics for the codes set. Correction ⇒ If diagnostics lead to NOx sensor replacement, inspect the mating chassis electrical connector for corrosion. Clean and repair as necessary. Parts Information Refer to the Electronic Parts Catalog (EPC) to determine the proper part numbers for the replacement NOx sensor. Warranty Information For vehicles repaired under warranty, use: Labor Operation Description Labor Time 4029892 Wire to Wire Repair - Engine Controls and Fuel Use Published Labor Operation Time Service Procedure Refer to Wire to Wire Repair - Engine Controls and Fuel in SI. Version 2 Modified August 30, 2017 — Updated Model Years. GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION