volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

TNN28-49 > < Computers/Controls - TCM/DEM Software Updates|Page 6933
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The TCM and DEM Upgrades are available to correct the complaints/symptoms shown.

If the message "Invalid" is received when ordering an Upgrade, and Status 134 is shown under the details, the control module already contains the latest
software.

Warranty Claim Information 

TNN28-49 > < Computers/Controls - TCM/DEM Software Updates|Page 6933