Fault Code 15 troubleshooting is the seven-page fault-isolation procedure for lost communication between the TECU and the Push Button Shift Control device on the Eaton Fuller Advantage Heavy Duty transmission. This section of publication TRTS0980 checks the bulkhead connection, verifies PBSC supply voltage at the 30-Way connector, and measures the High Integrity Link resistance and continuity to the 38-Way Vehicle Harness. Specified ranges keep each reading a clear pass or fail.
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 | 7 |
| File size | 0.8 MB |
| Format | |
| Language | English |
Fault Code 15 troubleshooting table of contents
- Step A – Check for active or inactive fault codes
- Step B – Verify the vehicle bulkhead connection
- Steps C and D – Use PD Mode and check the bulkhead
- Steps E and F – Inspect the 30-Way PBSC connector and voltage
- Steps G to L – Verify PBSC power and HIL continuity
- Step V – Verify repair
Applicable truck models covered
The procedure applies to Eaton Fuller Advantage and Fuller Advantage Heavy Duty automated transmissions fitted with the Eaton Push Button Shift Control device. It references the 30-Way PBSC connector, the 38-Way Vehicle Harness pins 25, 27, 28 and 31, and the 50 to 70 ohm HIL resistance range, so OEM schematics are needed. Transmission data is published on the manufacturer’s official Eaton transmissions website.
Who needs this Code 15 troubleshooting manual
Technicians facing a truck limited to down shifts or that will not select a start gear use this procedure to confirm PBSC voltage and High Integrity Link continuity before replacing the shift control device or TECU.
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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