Battery Temp. Sensor

[Beerdiver]

This summer I bought a 07 2500 with a 5.9 cummins. I have a check engine light and code for battery temp. sensor. I found the sensor and the wires are broke. I can't find the other end of the pigtail. Does anyone know where it plugs into the harness? Thanks in advance.

 

[Beerdiver]

The wires go under the battery box and anti-lock brake valves. It ties into the harness near the firewall. Only good access is with the inner fender removed.