Brooks, MN | Wizard - 7/20/2022 18:52
The item in your picture is the resister module(board, assembly, etc.). The computer is programmed to monitor circuit resistance and voltages. If something isn't right, such as unplugging the resister module, the computer will throw a code.
The only real way to troubleshoot, without throwing parts at the problem and hoping for a score, is to back probe the connector at the module with sharpened paperclips slid in touching the terminals(this can be touchy). Operate the tractor until the fan quits, and start checking voltages against a good ground. Speaking of grounds, every circuit has a supply circuit and a return circuit(ground). Have you checked the ground from the motor to the chassis ground?
The blower is grounded through the ATC. I did check the connection and cleaned it, but it looked fine. Grounding it directly is something I could try. It's tough to diagnose when it fails since it's so tough to access.
I talked to a mechanic today and he hadn't seen this part fail and he didn't think it was my problem. He said, like has been said here, that the problem is with a connection heating and loosening over time. He said specifically that it's in the connection from the tractor to the ATC harness right behind the filter behind the seat. He figured I'd see it on the female connector on the heavy wires. I looked closely at the thicker brown and black wires and I don't see any heating. I had cleaned and greased the connection and I decided to put it back together. I just can't make it fail, so I'll run it and when it fails I can reach through the fuse box and wiggle that harness to see if it'll come on. |
Steiger 385 Intermittent HVAC Blower Issue
