Condition
Handset is plugged into the traction motor controller. Key switch is in the ON position. Diagnostic menu is selected.

Truck Response
No Traction

Possible Causes and Test Procedures
1. Incorrect traction motor wiring.
Check wiring to traction motor.
Loose, worn, or frayed wires?
Motor wiring correctly installed?
2. Check for motor shorted to frame.
Disconnect leads from motor.
Resistance between frame and motor terminal should be 1 mega ohm or more.
3. Check for controller shorted to B−.
Disconnect motor leads from controller.
Resistance between motor terminals on controller and B− should be 1 mega ohm or more.