Updated info for code

If the Error Code 72 is intermittent the cause may be from static electricity. Check that the truck is equipped with a static strap or chain. It should be making a good, clean contact with the floor. Install new strap or chain if missing. (chain is more durable) A static electricity arc can cause a temporary interruption in communication.


Check the battery located in the tractor interface card. The battery, even though it is estimated to last many years, may be dead. The battery may be replaced as a low cost alternative to replacement of the tractor interface card. It a new battery does not correct eliminate the Error Code 72, the tractor interface card will require replacement.