This video describes the diagnosis and repair of an intermittent 15-02 error I have been experiencing with my Bobcat 873G. It seemed to happen more often while waiting for the glow plug count down to complete. The check list for the diagnosis is posted in the video. In my case, all of the checks for harness wiring and controller indicated a bad traction relay. I suspected the relay was okay and the issue was related to how the relay was seated in the fuse and relay panel. In the video, I demonstrate how I checked to make sure the relay was okay that led to suspecting the panel. I have added about 5 hours to the Bobcat since seating all of the relays in the panel. However, I do think it is possible for them to become loose again sometime in the future with normal operation. Let me know if you have any questions.
Update 02/23/19: I've put another 20 hours on the machine without an issue. If you have resolved your own 15-02 error, leave a comment and let's know your fix.
