WM60 No Start (DTC 3157) / Fixed

   / WM60 No Start (DTC 3157) / Fixed #1  

scottu5

New member
Joined
Jan 9, 2025
Messages
2
Tractor
NH WM60
Hello,
First post, hopefully in the correct location and posting for any others that may have similar situation:

I have a 2017 WorkMaster 60, approx 740 hours. About a week ago while running about 1800-2000 RPM PTO engaged, power rolled back and tractor shut down.

Code; 3157 (not communicating with CAN Buss), Water temp gauge FULL HOT (pegged), but not overheated, and STOP Light illuminated.

Changed out relays IGN 1 / IGN 2 (front left of tractor), code cleared, water temp gauge back to normal and stop light extinguished, but NO START (no click, nothing). BATT good 12.5v.

(**Note; cover is 'flipped' to see actual or correct relay position...mistake I made when originally changing out relays)

20250702_152757.jpg


Next changed one relay (just left of fuel tank ). It was an open box, open package relay from a dealer (it was black in color, not gray and I am suspecting was faulty since there was no change). 2 relays there, but could only located one locally (have others coming via mail from CNH, Also, all fuses check and appear ok.

Changed the fuse for starter, as well as the STOP relay, (one or 2 others as well).

While I was waiting for the new ECM relays from CNH, I checked (and bypassed for confirmation) all of the safety switches, as well as the ignition switch, battery cabling, wiring, etc.

As soon as the 2 new relays were plugged in (gray relays in picture), starter was energized and machine started right up.


scott

20250702_152821.jpg
 

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