Endurant HD
TRTS0950 EN-US
|
October 2024 - B

Diagnostic Procedure

A
Purpose:Document the vehicle symptom and check for Active or Inactive fault codes.

  1. Document the vehicle symptoms by completing the Driver Questionnaire on Driver Questionnaire Overview.

  2. Set vehicle parking brake and chock wheels.

  3. Key on with engine off.

  4. Connect ServiceRanger.

  5. Select “Service Activity Report”.

    Notice
    A Service Activity Report is required for transmission and clutch warranty claims. Reference Service Bulletin TAIB-1012.

  6. Enter information and select “Start Report”.

    Note: Transmission information is downloaded into the report.

  7. After download is complete, select “Send to Eaton”.

    Note: Internet connection is required.

  8. Go To Fault Codes.

  9. Select Eaton Products tab. Record fault code, status, description, ID, FMI, count and timestamp.

  10. Select Vehicle tab. Record status, description, ID, FMI and count.

  • If a vehicle/engine fault code(s) is Active, contact OEM for further diagnostic instructions.

  • If a transmission fault code(s) is Active, Go to Step G

  • If a transmission fault code(s) is Inactive, Go to Step B

  • If a transmission fault code is not set, Go to Step C

  • If ServiceRanger does not connect to the Transmission Control Module (TCM), go to the Power-Up Sequence

B
Purpose:Clear Inactive Transmission Fault Code(s).

  1. Key on with engine off.

  2. Connect ServiceRanger.

  3. Go To Fault Codes.

    Note: Inactive fault codes with a timestamp greater than 100 hours (100h 00m) indicates the condition may have been resolved.

  • Select "Clear Eaton Faults" and follow on-screen prompts. Go to Step C

C
Purpose:Verify the engine cranks.

  1. Key on with engine running.

  • If the engine cranks and runs, Go to Step D

  • If the display indicates “F” during the engine crank or while the engine is running, retrieve fault code(s) with ServiceRanger. Go to Step G

  • If the engine does not crank and the display indicates “N”, go to Start Enable Relay Contact Test.

    Note: If the engine was shut off with the transmission in gear, confirm the vehicle parking brake is set and service brake is depressed when attempting to start the engine.

D
Purpose:Verify the transmission engages a gear from neutral.

  1. Key on with engine running.

  2. Depress and hold the service brake.

  3. Select a forward and reverse mode from neutral.

  • If the transmission engages a gear, re-select neutral mode. Go to Step E

  • If the display indicates “F” during the mode selection and/or engagement of a gear, re-select neutral mode. Retrieve fault code(s) with ServiceRanger, Go to Step G

  • If the transmission does not engage a gear and the display indicates “N”, re-select neutral mode and go to the Brake Switch Functionality Test

E
Purpose:Operate vehicle (road test) and attempt to duplicate the vehicle symptom.

  1. Drive or operate the vehicle (road test), attempt to duplicate the vehicle symptom and set a fault code under the conditions reported in the Driver Questionnaire.

    Note: Inactive fault codes with a timestamp greater than 100 hours (100h 00m) indicates the condition may have been resolved.

  • If the symptom was duplicated and/or the display indicated “F”, Go to Step F

  • If the symptom was not duplicated, no problem was found. Contact Eaton Cummins Automated Transmission Technologies for further diagnostic instructions. For Help Line phone numbers, go to Contact Information.

F
Purpose:Check for Active or Inactive fault codes.

  1. Set vehicle parking brake and chock wheels.

  2. Key off and allow the TCM to perform a complete power down.

  3. Key on.

  4. Connect ServiceRanger.

  5. Select “Service Activity Report”.

  6. Enter information and select “Start Report”.

    Note: Fault code and transmission information is downloaded into the report.

  7. Select “Send to Eaton”.

    Note: Internet connection is required.

  • If a vehicle/engine fault code(s) set during the road test, contact OEM for further diagnostic instructions.

  • If a transmission fault code(s) set during the road test, Go to Step G

  • If a fault code did not set during the road test and the symptom was duplicated, go to the Transmission Shift Complaint.

G
Purpose:Prioritize fault codes for troubleshooting.

  1. Determine the fault code to troubleshoot first by using the priority index below (with 1 highest priority and 4 least priority).

    • Priority 1: Vehicle Interface Fault Codes 100-199
    • Priority 2: Component Fault Codes 200-499
    • Priority 3: System Fault Codes 500-899
    • Priority 4: Feature Fault Codes 900-999

  2. Go to the Fault Code Isolation Procedure Index and troubleshoot the fault code with the highest priority level.

  • If more than one fault code within a level applies, troubleshoot Active fault codes before Inactive fault codes.

  • If only Inactive fault codes are present, troubleshoot the fault code that has the highest occurrence count or most recent timestamp.

  • If no fault codes are found, match the vehicle symptom to the appropriate item in the Symptom-Driven Diagnostics Index