Fault Code 717: Transmission Requested Gear
J1939: SA 3 SPN 525 FMI 12
Overview
The Transmission Control Module (TCM) monitors the vehicle and transmission operating conditions to ensure the requested gear is appropriate for the conditions.
Detection
The TCM monitors the Transmission Requested Gear. If the requested gear is invalid, the fault is set Active.
Conditions to Set Fault Code Active
FMI 12 – Bad Intelligent Device: The Transmission Requested Gear is invalid for the current operating conditions.
Fallback
FMI 12:
- Amber warning lamp on
- Transmission main box shifts to neutral
- If vehicle is moving
- Red stop lamp on
Conditions to Set Fault Code Inactive
FMI 12: Key cycle
Possible Causes
FMI 12:
- TCM
- Software issue
- Internal failure
Additional Tools
- None
Fault Code 717 Troubleshooting
Set vehicle parking brake and chock wheels.
Record the transmission fault codes, FMIs, occurrences, and timestamps from the Service Activity report created during the Diagnostic Procedure.
If Fault Code 717 FMI 12 is Active or Inactive, If the TCM is greater than 5516014, Contact Eaton Cummins Automated Transmission Technologies for further diagnostic instructions. For Help Line phone numbers, go to Contact Information. Go to Step V
Key off.
Reconnect all connectors and verify that all components are properly installed.
Key on with engine off.
Connect ServiceRanger.
Go to “Fault Codes”.
Select “Clear All Faults”.
Operate vehicle and attempt to reset the fault code or duplicate the previous complaint.
Check for fault codes using ServiceRanger.
If no fault codes set and the vehicle operates properly, test complete.
If Fault Code 717 sets Active during operation, Go to Step A
If a fault code other than 717 sets Active, troubleshoot per the Fault Code Isolation Procedure Index.