Without adherence to J1939-73, a diagnostic tool cannot "speak" to an ECU, nor can an ECU report faults in a way that fleet managers understand.
Specifically clears active and previously active DTCs. sae j193973 pdf exclusive
In the search bar, type “J1939-73” (note the hyphen). Do not type “J193973.” Without adherence to J1939-73, a diagnostic tool cannot