Testing The Motor - E-Wheels EW-46 Service & Repair Manual

Testing the Motor

Start by testing the resistance at the motor phase lines using all color combinations. If your meter
displays any resistance levels other than infinite/zero, then the motor needs to be replaced.
Next, check that the Hall Effect positioning sensor's
voltage is decreasing when the wheel is being
rotated. Rotate the wheel by hand, not with the
throttle.
While under a full load (with the throttle pulled all
the way) the motor should respond if the controller,
harness, and throttle have already been tested, and
the brake sensors and rheostat have already been
checked. If not, the motor needs to be replaced.
Going internal with the motor to determine if
the differential, transfer case, motor hall
sensors, or other internal components is the
issue is not recommended for field service
technicians. Typically, the labor costs for
disassembling, testing, and reassembling will
exceed the cost for a replacement motor. If the
control unit is emitting the proper power to
the motor under load, the brake sensor is not
activated, and the rheostat is unplugged, and
the motor is not engaging,
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