6-NA-105: Diagnostic Tip for Lost Communication, DTCs U183E, U184A, U184B, U184C, U184D or U184E Set or Stored in History – 2016-2017 Chevrolet & GMC

#16-NA-105: Diagnostic Tip for Lost Communication, DTCs U183E, U184A, U184B, U184C, U184D or U184E Set or Stored in History – (Mar 8, 2017)

Subject: Diagnostic Tip for Lost Communication, DTCs U183E, U184A, U184B, U184C, U184D or U184E Set or Stored in History

Brand: Model: Model Year: VIN: Engine: Transmission:
from to from to
Chevrolet Malibu (VIN Z) 2016 2016
Chevrolet Silverado LD Crew Cab 2016 2017
Chevrolet Malibu 2017 2017
GMC Sierra LD Crew Cab 2016 2017

 

Involved Region or Country North America and N.A. Export Regions
Condition Some technicians may find one of the following DTCs listed below or any combination set or stored in history in the hybrid powertrain control module (HPCM2).

  • U183E – Lost Communication with Telematics Communication Interface Control Module on Low Speed CAN Bus
  • U184A – Lost Communication with Body Control Module (BCM)
  • U184B – Lost Communication with Remote Heater and Air Conditioning Control Module on Low Speed CAN Bus
  • U184C Lost Communication with Instrument Cluster on Bus F
  • U184D Lost Communication with Radio on Bus F
  • U184E Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Bus F
Cause This condition may be due to a false setting of the DTC.
Additional Options Equipped with ELECTRIFIED PROPULS-ELECTRIC, HEV, GEN 1, FWD or HYBRID PROPULSION-ELECTRIC, PARALLEL, 10KW CONTINUOUS POWER (RPOs HP4, HP5)

 

Correction

Technicians are to clear and ignore this DTC unless the engine control module (ECM), transmission control module (TCM) or generator control module (GCM) have U codes set indicating a loss of communications with the BCM, instrument cluster, radio or inflatable restraint sensing and diagnostic module.

 

Warranty Information

For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.

Labor Operation Description Labor Time
2881088* Clear DTCs from Modules 0.2 hr
*This is a unique Labor Operation for Bulletin use only.

 

Version 3
Modified July 20, 2016 – Adding additional DTCs in the Condition, including loss of communication with multiple components in the Correction and adding Warranty Information.

March 8, 2017 – Adding additional DTCs in the Condition, adding Malibu, 2017 Model Year and Involved Region or Country.

 


https://www.nhtsa.gov/recalls?nhtsaId=10078421

April, 2016

https://static.nhtsa.gov/odi/tsbs/2016/SB-10078421-7690.pdf

Download (PDF, 478KB)


 

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