Endurant HD
TRTS0950 EN-US
|
October 2024 - B

Fault Code 184: Engine Demand Percent Torque

J1939: SA 3 SPN 2432 FMI 13, 19

Overview

The Transmission Control Module (TCM) receives the Engine Demand Percent Torque message over the Secondary Data Link. This information is used to determine transmission performance. The Engine Demand Percent Torque message is contained in the 20-Way TCM Body Harness Connector.

Detection

The TCM monitors the Engine Demand Percent Torque message. If the message is not available or in error, the fault is set active.

Conditions to Set Fault Code Active

FMI 13 – Out of Calibration: Engine Demand Percent Torque message not available for 5 seconds.

FMI 19 – Received Network Data in Error: Engine Demand Percent Torque message received but in error for 5 second.

Fallback

All FMIs

  • Amber warning lamp on
  • Lowest available start gear only
  • Urge to Move and Creep mode prohibited
  • Launch quality may degrade
  • PTO mode prohibited

    Note: If the vehicle is moving:

    • Red stop lamp on
    • Clutch engagement prohibited, vehicle may coast to a stop
    • Transmission downshifts to lowest available start gear

Note: Vehicle fallback modes may vary.

Conditions to Set Fault Code Inactive

All FMIs: Engine Demand Percent Torque message available and valid for 10 seconds.

Possible Causes

All FMIs:

  • Vehicle Components
    • Module(s)

Note: Refer to OEM for troubleshooting a failed system.

Fault Code 184 Troubleshooting

A
Purpose:Direct troubleshooting to OEM.

  1. Set vehicle parking brake and chock wheels.

  2. Record the transmission fault codes, FMIs, occurrences, and timestamps from the Service Activity Report created during the Diagnostic Procedure.

  • If Fault Code 184 is Inactive and there are other Active vehicle or transmission fault codes, troubleshoot all Active fault codes. Go to Step V

  • If Fault Code 184 FMI 13 is Active, refer to OEM and enable vehicle Engine Demand Percent Torque SPN 2432. Go to Step V

  • If Fault Code 184 FMI 13 is Inactive, Go to Step V

  • If Fault Code 184 FMI 19 is Active or Inactive, there is a fault with the Engine Demand Percent Torque message sent from a vehicle module. Contact OEM for further diagnostic instructions. Go to Step V

V
Purpose:Verify repair.

  1. Key off.

  2. Reconnect all connectors and verify that 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.

  • If no fault codes set and the vehicle operates properly, test complete.

  • If Fault Code 184 sets Active during operation, Go to Step A

  • If a fault code other than 184 sets Active, go to Fault Code Isolation Procedure Index.