Fault Code 14 troubleshooting is the eight-page fault-isolation procedure for an invalid analog shift lever signal on the Eaton Fuller Advantage Heavy Duty transmission. This section of publication TRTS0980 is written for the Eaton-supplied analog shift lever and walks through PD Mode wiggle testing, lever resistance readings in each position and continuity of the mode and ground wires at the 8-Way and 38-Way connectors. Specified resistance ranges make each reading a pass or fail decision.
Official document details
| Brand | Eaton |
|---|---|
| Model coverage | Fuller Advantage & Fuller Advantage Heavy Duty automated transmission |
| System / Group | DTCs – Fault Isolation Procedures |
| Publication no. | TRTS0980 |
| Year / Revision | 2016 (Rev. 2016.06.20) |
| Pages | 8 |
| File size | 0.9 MB |
| Format | |
| Language | English |
Fault Code 14 troubleshooting table of contents
- Step A – Check for active or inactive fault codes
- Step B – Use PD Mode to locate intermittent failures
- Step C – Inspect Vehicle Harness and connections
- Step D – Verify operation of the analog shift lever
- Step E – Verify up and down button resistance values
- Steps F to H – Verify continuity of mode and ground wires
- Step I – Verify OEM bulkhead connections
- Steps J and V – Check fault status and verify repair
Applicable truck models covered
The procedure applies to Eaton Fuller Advantage and Fuller Advantage Heavy Duty automated transmissions fitted with an Eaton-supplied analog shift lever; vehicles with an OEM analog lever must follow OEM procedures. It references the 8-Way shift lever connector, the 38-Way Vehicle Harness pins 15, 16 and 17 and the OEM bulkhead connector. Transmission data is published on the manufacturer’s official Eaton transmissions website.
Who needs this Fault Code 14 troubleshooting manual
Technicians facing an erratic or dead shift selector use this procedure to measure lever resistance in R, N, D, M and L, verify the up and down button values and confirm harness continuity before replacing the analog shift lever.
The complete PDF, published under Eaton document TRTS0980, is available in the DiagTechPro manuals library; a free account is required to download it.
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