Endurant HD
TRTS0950 EN-US
|
November 2024 - B

Fault Code 180: Engine Configuration Message

J1939: SA 3 SPN 188 FMI 1, 9, 13, 19

Overview

The Transmission Control Module (TCM) receives an Engine Configuration message from the Engine Electronic Control Unit (ECU) over the Primary Data Link. The Engine Configuration message provides the TCM with the torque and speed limits of the engine.

Detection

The TCM monitors the Engine Configuration message. If an invalid message is received, the TCM sets the fault code active.

Conditions to Set Fault Code Active

FMI 1 – Data Valid But Below Normal (Most Severe): Engine idle speed set below 550 rpm for 10 seconds.

FMI 9 – Abnormal Update Rate: Engine Configuration message not received for 25 seconds.

FMI 13 – Out Of Calibration: Engine Configuration message not available for 10 seconds.

FMI 19 – Received Network Data In Error: Engine Configuration message invalid for 10 seconds.

Fallback

All FMIs:

  • Amber warning lamp on
  • Launch and shift quality may be degraded
    • TCM uses a default Engine Configuration

Note: Refer to OEM for troubleshooting a failed system. Vehicle may have additional fallback modes.

Conditions to Set Fault Code Inactive

FMI 1: Engine idle speed configuration setting is correct in the Engine ECU.

FMI 9, 13, 19: Engine Configuration message received and valid for 10 seconds.

Possible Causes

All FMIs:

  • Vehicle Components
    • Engine ECU
    • Engine incompatible or mis-configured
    • J1939 Data Link

Note: Refer to OEM for troubleshooting a failed system.

Additional Tools

  • None

Fault Code 180 Troubleshooting

A
Purpose: Check for Active or Inactive fault codes.

  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 180 is Inactive and there are other Active vehicle or transmission fault codes, troubleshoot all Active fault codes. Go to Step V

  • If Fault Code 180 FMI 13 is Active, refer to OEM and enable vehicle Engine Configuration message SPN 188. Go to Step V

  • If Fault Code 180 FMI 13 is Inactive, Go to Step V

  • If Fault Code 180 FMI 1 is Active with the engine running at idle, refer to OEM regarding Engine idle speed configuration setting.

  • If Fault Code 180 FMI 1 is Inactive with the engine running at idle, Engine idle speed configuration setting is correct. Go to Step V

  • If Fault Code 180 FMI 9 or 19 is Active or Inactive, Go to Step B

B
Purpose: Verify Idle engine speed signal message.

  1. Key on with engine on at idle.

  2. Connect ServiceRanger.

  3. Go To “Data Monitor”.

  4. Select “Speed”.

  5. Select “Idle engine speed”.

  6. Select all of the “- 188” SPN sources.

    Note: Not all sources will indicate a value.

  7. Monitor vehicle tachometer and record engine RPM value in table.

  8. Monitor ServiceRanger and record “Idle engine speed” rpm value in table.

  9. Compare reading(s) in table.

  • If readings are out of range, refer to OEM guidelines for repair of the Idle engine speed signal message. Go to Step V

  • If readings are in range, no fault was found. The intermittent nature of the fault makes it likely that the problem is in the Idle engine speed signal message. Contact OEM for further diagnostic instructions. Go to Step V

Engine Speed Signal SourceRangeReading(s)
Vehicle tachometerIdle RPM
188 - Idle engine speedWithin 150 RPM of engine idle
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.