This Eaton Fault Code 35 procedure is the official Fuller Advantage Heavy Duty fault-isolation document (publication TRTS0980) for diagnosing a communication loss across the J1939 Data Link. The 6-page PDF steps a technician through bulkhead inspection, signal-voltage and resistance measurements at the 9-Way Diagnostic Connector, and a final verification test drive with ServiceRanger.
Eaton Fault Code 35 document details
| Brand | Eaton |
|---|---|
| Model coverage | Fuller Advantage Heavy Duty and Fuller Advantage |
| System / Group | DTCs / Fault Isolation Procedures |
| Publication no. | TRTS0980 |
| Year / Revision | 2016.06.20 (© 2016 Eaton) |
| Pages | 6 |
| File size | 0.8 MB |
| Format | |
| Language | English |
Fault isolation steps included
- Step A/B — Check fault codes and use Product Diagnostic (PD) Mode
- Step C — Verify integrity of the vehicle Bulkhead Connection
- Step D — Verify proper signal voltage on the J1939 Data Link (4.7–5.3 V total)
- Step E — Verify J1939 positive and negative are not shorted to ground
- Step F/G — Verify resistance (50–70 ohms) and connections to the TECU
- Step H/V — Verify fault code status and confirm the repair
Applicable transmissions and connectors
The procedure covers Fuller Advantage Heavy Duty transmissions with a TECU, a 38-Way Vehicle Harness Connector, an optional Bulkhead Connection and a 9-Way Diagnostic Connector. All wiring and pin-outs are OEM proprietary, so repairs follow OEM guidelines. Each measurement step records readings in a table and branches to the next step only when the values fall in range. Manufacturer data is published on Eaton’s official Roadranger website.
Who needs this Eaton Fault Code 35 manual
Driveline technicians and workshop owners troubleshooting intermittent J1939 communication or an active fault use this manual to measure signal voltage correctly and decide when to replace the TECU. The final step confirms whether an intermittent wiring issue or an internal TECU failure remains after all connections are re-established.
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