This Eaton Fault Code 29 reference is the official Fuller Advantage Heavy Duty diagnostic document (publication TRTS0980) for the Remote Throttle Enable circuit. The 3-page PDF explains why the TECU sets the fault when it detects an open or shorted condition in the OEM-installed wiring between the TECU and the Remote Throttle Relay.
Eaton Fault Code 29 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 | 3 |
| File size | 0.6 MB |
| Format | |
| Language | English |
Document sections and coverage
- Overview of the Remote Throttle Enable relay circuit (J1587: MID 130 SID 372)
- Detection of open or short conditions for 1 second or greater
- Conditions to set the fault Active (FMI 4 shorted low, FMI 5 open circuit)
- Fallback behavior — remote throttle will not function
- Possible causes and component identification
Applicable transmissions and circuit
The reference covers Fuller Advantage Heavy Duty transmissions fitted with a Remote Throttle Relay in a 5-Way relay socket, the 38-Way Vehicle Harness and the TECU. The relay and associated Vehicle Harness wiring are installed by the OEM, so repairs follow OEM guidelines. The TECU monitors the circuit continuously, and either an open or a short present for one second or greater sets the fault Active. Manufacturer data is published on Eaton’s official Roadranger website.
Who needs this Eaton Fault Code 29 manual
Technicians and workshop owners servicing a non-working remote throttle, or diagnosing an open or short in the relay circuit, use this manual to identify the correct causes before replacing parts. It confirms that the fault clears only after the short or open condition is absent for two seconds.
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