a) Disconnect the electric motor connector.
b) Connect the battery to terminal 2 (+) of the electric motor and (-) to the body.
c) The electric motor should rotate slowly.
2. Testing operation at high speed.
a) Disconnect the electric motor connector.
b) Connect the battery to terminal 1 (+) of the electric motor and (-) to the body.
c) The electric motor must rotate quickly.
3. Checking the stop in the initial position.
a) Set the electric motor to low speed mode.
b) Disconnect power from terminal 2 in any position other than the initial one.
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c) Connect terminals 2 and 3.
d) Connect the battery to terminal 4 (+) of the electric motor.
d) The electric motor should start working and stop in the initial position.
If the test results are negative, replace the electric motor.