This fault code 97 troubleshooting manual gives the Eaton procedure for Fault Code 97 (or 67) on the Fuller Advantage transmission, isolating an ignition voltage fault at the Electronic Clutch Actuator through voltage and resistance checks. It is part of Eaton publication TRTS0980, Fault Isolation Procedures, and runs from Step A through repair verification in Step V.
Fault code 97 troubleshooting document details
| Brand | Eaton |
|---|---|
| Model coverage | Fuller Advantage Heavy Duty automated transmission |
| System / Group | DTCs — ECA Ignition Voltage |
| Publication no. | TRTS0980 |
| Year / Revision | 2016.06.20 |
| Pages | 3 |
| File size | 0.5 MB |
| Format | |
| Language | English |
Document table of contents
- Record fault codes and update software
- Product Diagnostic (PD) Mode wiggle test
- Verify ignition voltage at the ECA from the TECU
- Verify resistance of the ignition voltage circuit
- Verify repair (Step V)
The procedure records the fault data, updates transmission and ECA software with an Eaton-approved adapter, and uses Product Diagnostic (PD) Mode to find intermittent wiring faults in the Transmission Harness. Ignition voltage is measured at the 8-Way Transmission Harness Connector Pin 7 to ground, within 1.2 volts of battery voltage, and circuit resistance between 38-Way Pin 13 and 8-Way Pin 7 must read 0.0 to 0.5 ohms with Pin 13 to ground open.
Applicable truck models
This covers Eaton Fuller Advantage Heavy Duty transmissions where the TECU supplies ignition voltage to the ECA through the Transmission Harness. Depending on the readings the sheet directs the technician to replace the ECA, the Transmission Harness or the TECU. Confirm the applicable chassis and software level with the manufacturer on the Eaton official website.
Who needs this code 97 troubleshooting guide
Technicians tracing an ECA that has lost ignition voltage, shown as a flashing “F” and a transmission that cannot engage a start gear, use this sequence to confirm the circuit before replacing parts.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download.
Related manuals library
