The CID 1558 FMI 09 diagnostic code is associated with the communication between the Implement ECM and the Implement ECM 2 that is conducted on the Cat Data Link circuit or the communication that is conducted over the SAE J1939 Data Link circuit.
The FMI 09 means that the Implement ECM is not receiving any communication from the Implement ECM 2 on the involved data link circuit.
When this diagnostic code is activated by the Implement ECM, a "companion" diagnostic code will be activated. The companion diagnostic code that has been activated will be either of the following:
CID 0247 FMI 09 - SAE J1939 Data Link
CID 0248 FMI 09 - Cat Data Link
Determine which one of the companion diagnostic codes has been activated along with the CID 1558 FMI 09 diagnostic code.
When the CID 1558 FMI 09 diagnostic code is cleared, the data link companion code will also clear.
The possible causes of the CID 1558 FMI 09 diagnostic code are listed below:
- An open or a poor connection in the data link circuit.
- The Implement ECM 2 has failed. This condition is unlikely
- The Implement ECM has failed. This condition is unlikely.
Note: A loss of system power to the Implement ECM 2 can cause the Implement ECM to activate this diagnostic code. Ensure that the Implement ECM 2 is powered up before proceeding with this procedure.
Note: Ensure that the CID 1558 FMI 09 diagnostic code is active before performing this procedure.
Test Step 1. DETERMINE THE DATA LINK COMPANION CODE THAT IS ACTIVE
- Check the list of active diagnostic codes in order to determine the "companion" diagnostic codes that are active:
CID 0247 FMI 09 - SAE J1939 Data Link
CID 0248 FMI 09 - Cat Data Link
Results:
- OK - Both the CID 0247 FMI 09 and the CID 0248 FMI 09 codes are active, check power to the Implement ECM 2STOP
- OK - The CID 0248 FMI 09 diagnostic code is active indicating that the problem is in the Cat Data Link. In order to perform the troubleshooting procedure for the Cat Data Link, proceed to the diagnostics for CID 0248 FMI 09.
- OK - The CID 0247 FMI 09 diagnostic code is active indicating that the problem is in the SAE J1939 Data Link. In order to perform the troubleshooting procedure for the SAE J1939 Data Link, proceed to the diagnostics for CID 0247 FMI 09.