What will be the effect of the Truck if CT is damaged ??

3 options:
pin 2 is always high: relays energize but nu pulse
pin 2 is always low: Current way to high, fuse blows when pulling
pin 2 floats: low pulse, often when you touch the wire the pulsing goes up and down.

This reference corresponds to current sensor for tration motors.

It's feeded wtih 15v from 1A2 traction controller (yellow and green wires) and send analogic signal from yellow/green wire depending on the current flowing.

1X6 connector;

pin 1-- +15v
pin 2-- output signal
pin 3-- 0v

Output signal:

motor current 0A = output signal 7,5v
motor current 100A = output signal 8v
motor current 200A = output signal 8,5v

For each 100A motors increase in current, the output voltage changes by 0,5v

Regards