Fault code for Eaton Hybrid Drive Systems models (MY08) EH-8E306A-U, EH-8E306A-UPG, EH-8E306A-UP, EH-8E306A-CD, EH-8E306A-T, EH-6E606B-CD, (MY09) EH-8E406A-U/P, EH-8E406A-UP, EH-8E406A-UPG, EH-8E406A-CD, EH-8E406A-CDG, EH-8E406A-CDR, EH-8E406A-T, EH-6E706B-CD, EH-6E706B-P and EH-6E706B-UPG. Read below to learn how to test, clear and fix fault code errors for your Freightliner, Mack, Peterbilt, Kenworth, Volvo, International, and heavy-duty truck and equipment. The Transmission Electronic Control Unit (TECU) is connected to the shift device, which sends driver mode selection data. The only compatible shift devices are the Eaton® Push Button Shift Control (PBSC) and OEM supplied shift lever (if equipped with park). The TECU checks the vehicle for the type of shift device during the first power up.
Fault Code 83 – Invalid Shifter Range Detection
The following preconditions must be met before the system detects the fault:
- TECU ignition voltage is greater than 7 volts and less than 16 volts.
- TECU System Battery Voltage Low Fault is Inactive.
- TECU is being powered up for the first time and no shift device has been configured.
Note: When troubleshooting an Inactive code refer to the Product Diagnostic Mode (PDM)
Conditions to Set Fault Code Active
- Fault Code 83 is set when redundant sensor voltages do not agree.
Fallback When Fault Code 83 is set the following conditions occur:
- “F” appears in the gear display.
- Fault is stored in TECU memory.
- TECU changes to “AutoShift” control.
- Engine does not crank.
Conditions to Set Fault Code Inactive
Only Inactive faults can be cleared from the Transmission Electronic Control Unit (TECU) or HCM history using ServiceRanger. The TECU automatically clears the faults from history after 200 hours and the HCM automatically clears the faults from history after the fault has been Inactive for 200 hours.
This fault code can be caused by any of the following:
- FMI 12, 13
- Faulty Sensors