Eaton Fault Code 11 troubleshooting — TECU replacement, TRTS0980

This page presents the Eaton Fault Code 11 troubleshooting step from the TRTS0980 fault isolation procedures for the Fuller Advantage Heavy Duty transmission. When Fault Code 11 sets active or inactive, the procedure directs the technician to replace the TECU and then verify the repair.

Official document details

Brand Eaton
Model coverage Fuller Advantage Heavy Duty automated transmission (DTCs)
System / Group Fuller Advantage Heavy Duty / DTCs
Publication no. TRTS0980
Year / Revision © 2016 Eaton
Pages 1
File size 0.0 MB
Format PDF
Language English

Inside the Eaton Fault Code 11

  • Record fault codes, FMIs, occurrences and timestamps
  • If the code sets active or inactive, replace the TECU
  • Clear codes with ServiceRanger and test drive
  • Verify repair (Step V)
  • Contact Eaton at (800) 826-4357 for further diagnostics

This is a short, decisive procedure. After recording the transmission codes, FMIs, occurrences and timestamps from the Service Activity Report, the reader is told that if the code sets either active or inactive the correct action is to replace the control unit, then proceed to the verify-repair step. Verification means reconnecting all connectors, confirming components are properly installed, clearing codes with ServiceRanger and road-testing the vehicle to try to reproduce the complaint. If no code sets and the truck operates properly the test is complete; if the code returns during the drive, the manual directs the technician to contact Eaton at (800) 826-4357 for further diagnostics, and any other code is routed through the Fault Code Isolation Procedure Index on page 14.

Applicable truck models

The step applies to Fuller Advantage transmissions built around the Transmission Electronic Control Unit and diagnosed with ServiceRanger. It cross-references the Fault Code Isolation Procedure Index on page 14 for any code other than 11. Verify coverage against your VIN and build sheet on the Eaton Vehicle Group site.

Who needs the Eaton Fault Code 11

Technicians confirming an internal TECU fault use this single-page reference to complete the replace-and-verify workflow, clear codes, road test and know when to call Eaton for further diagnostics if the code returns.

The complete 1-page PDF is available in the DiagTechPro manuals library; a free account is required to download.

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