Fault Codes:
Caterpillar CAT320 $0004
Solution:
Another maintenance test from a different ECM is underway. Either wait until the test is completed or stop the test to continue.
Fault Description:
Maintenance tests activated by another ECM
Caterpillar CAT320 $0004
Another maintenance test from a different ECM is underway. Either wait until the test is completed or stop the test to continue.
Maintenance tests activated by another ECM