This Eaton ECA battery voltage manual documents Fault Code 96 (or 66) for the Fuller Advantage transmission, explaining how the Electronic Clutch Actuator monitors its non-switched battery power supply and reports an out-of-range condition to the TECU. It is part of Eaton publication TRTS0980, Fault Isolation Procedures, and applies specifically to systems that use a Gen2 ECA and its associated harnesses.
Eaton ECA battery voltage document details
| Brand | Eaton |
|---|---|
| Model coverage | Fuller Advantage Heavy Duty automated transmission |
| System / Group | DTCs — Electronic Clutch Actuator (Gen2 ECA) |
| Publication no. | TRTS0980 |
| Year / Revision | 2016.06.20 |
| Pages | 3 |
| File size | 0.7 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Detection
- Conditions to Set Fault Code Active
- Fallback
- Conditions to Set Fault Code Inactive
- Possible Causes
- Component Identification
The procedure lists the J1587 MID 130 and J1939 SA 3 addresses with FMI 3 and FMI 4. FMI 3, Voltage Above Normal, is set when ECA battery voltage rises above 34 volts for two seconds or longer; FMI 4, Voltage Below Normal, is set when it falls below 8.5 volts for two seconds. The code goes inactive when voltage drops below 32 volts, or rises above 9 volts on a 12-volt chassis and 18 volts on a 24-volt chassis, for six seconds.
Applicable truck models
This document covers Eaton Fuller Advantage Heavy Duty transmissions fitted with a Gen2 Electronic Clutch Actuator drawing power through the 2-Way ECA Connector and a 40-amp fuse. Possible causes listed include alternator or generator failure, an improper jump-start, damaged ECA power harness wiring, corroded terminals, and internal battery or ECA failure. For engine and chassis coverage always confirm the build against the manufacturer on the Eaton official website.
Who needs this Eaton ECA battery voltage manual
Heavy-duty driveline technicians and workshop owners diagnosing a flashing “F” gear display or a transmission that will not engage a gear rely on this sheet to confirm the fault before replacing parts. It pairs with the matching Fault Code 96 (or 66) Troubleshooting steps.
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