Fault Code 22 troubleshooting is the fault-isolation procedure for an ABS communication or Hill Start Aid problem on the Eaton Fuller Advantage Heavy Duty transmission. This single-page section of publication TRTS0980 directs the technician to read ABS codes with an OEM-approved diagnostic tool, inspect the HSA Disable Switch and treat the J1939 wiring and pin-outs as OEM proprietary. It hands the detailed electrical repair back to the chassis OEM guidelines.
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 | 1 |
| File size | 0.0 MB |
| Format | |
| Language | English |
Fault Code 22 troubleshooting table of contents
- Retrieve ABS fault codes with an OEM-approved diagnostic tool
- Inspect the HSA Disable Switch for proper operation
- Step A – Check for active or inactive ABS fault codes
- Note on J1939 and HSA Disable Switch intermittents
- Step V – Verify repair
Applicable truck models covered
The procedure applies to Eaton Fuller Advantage and Fuller Advantage Heavy Duty automated transmissions fitted with Hill Start Aid and an ABS module communicating over the J1939 data link. All ABS wiring, connector pin-outs and the HSA Disable Switch are OEM proprietary, so the chassis OEM documentation is essential. Transmission data is published on the manufacturer’s official Eaton transmissions website.
Who needs this Code 22 troubleshooting manual
Technicians investigating an inoperative Hill Start Aid or lost ABS communication use this page to confirm whether the ABS module, the J1939 link or the HSA Disable Switch is at fault before returning to OEM guidelines. Because almost every wire in this circuit is OEM proprietary, the page deliberately keeps the electrical repair with the chassis manufacturer and limits the transmission technician to confirming the symptom.
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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