Fault Code 181: Engine Configuration Identification
J1939: SA 3 SPN 6395 FMI 13
Overview
The Transmission Control Module (TCM) receives the vehicle Engine Identification message from a vehicle Electronic Control Unit (ECU) over the Primary Data Link (J1939A). This information is used to determine transmission operation.
Detection
The TCM monitors Engine Identification messages. If messages are invalid, the fault is set Active.
Conditions to Set Fault Code Active
FMI 13 - Out of Calibration: TCM invalid calibration.
Fallback
FMI 13:
- Amber warning lamp on
- No degraded modes
Conditions to Set Fault Code Inactive
FMI 13: Key cycle and fault condition no longer exists.
Possible Causes
FMI 13:
- TCM
- Software issue
- Internal failure
Additional Tools
- None
Fault Code 181 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 181 is Inactive and there are other Active vehicle or transmission fault codes, troubleshoot all Active fault codes.Go to Step V
If Fault Code 181 FMI 13 is Active, Contact Eaton Cummins Automated Transmission Technologies for further diagnostic instructions. For Help Line phone numbers, go to Contact Information. Go to Step V
If Fault Code 181 FMI 13 is Inactive, Go to Step V
Key off.
Reconnect all connectors and verify 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 vehicle operates properly, test complete.
If Fault Code 181 sets Active, Go to Step A
If a fault code other than 181 sets Active, troubleshoot per Fault Code Isolation Procedure Index.