Endurant XD
TRTS0960 EN-US
|
December 2024 - D

Fault Code 717: Transmission Requested Gear

J1939: SA 3 SPN 525 FMI 12

Overview

The Endurant XD Series transmissions are equipped with position sensors to monitor shift rail positions and speed sensors to monitor shaft speeds.

The sensor information is provided to the Transmission Control Module (TCM) for the purpose of making shift decisions, confirming gear engagement, and monitoring shift rail positions. The TCM compares the shift rail commands to the shift rail positions and shaft speeds (ratio calculation) to ensure the transmission is operating properly.

The sensors and shift rails are located in the Mechatronic Transmission Module (MTM) and connected to the TCM at the 74-Way Transmission Harness Connector.

Detection

The TCM monitors the transmission operation. If a system failure is detected, the fault is set Active.

Conditions to Set Fault Code Active

FMI 12 – Bad Intelligent Device: Inappropriate requested gear commanded relative to the selected gear.

Fallback

FMI 12:

  • Amber warning lamp on
  • Urge to Move and Creep Mode prohibited
  • Non-Neutral modes prohibited
  • PTO Mode prohibited
  • If vehicle is moving:
    • Red stop lamp on

Conditions to Set Fault Code Inactive

FMI 12: Key cycle and fault condition no longer exist.

Possible Causes

FMI 12:

  • TCM
    • Software issue
    • Internal failure

Additional Tools

  • None

Fault Code 717 Troubleshooting

A
Purpose:Check for active or inactive fault codes.

  1. Set vehicle parking brake and chock wheels.

  2. Record transmission fault codes, FMIs, occurrences, and timestamps from 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

V
Purpose:Verify repair.

  1. Key off.

  2. Reconnect all connectors and verify all components are properly installed.

  3. Key on with engine off.

  4. Connect ServiceRanger.

  5. Go To “Fault Codes”.

  6. Select “Clear All Faults”.

  7. Operate vehicle and attempt to reset the fault code or duplicate the previous complaint.

  8. Check for fault codes using ServiceRanger.