Bennett Marine AutoTrimPro Installation & User Manual page 45

Display and the ATP Control
Unit. This cable should be
a thin gray cable with a four
position connector.
• Solution c: Unplug
the ATP Helm Display
communications cable and
inspect the pins inside the
connector. If a pin has been
pushed back, remove the
orange retainer, push the pin
forward until it clicks, then
replace the orange retainer.
ATP Helm Display has
the upper yellow LEDs
flashing
The ATP Helm Display will flash the
upper yellow LEDs when the system
does not detect actuator sensors.
• Potential Cause 1: The ATP
system does not detect actuator
sensors.
• Solution a: Verify that
the system does contain
actuator sensors (See page
6) . If actuator sensors are
present, there will be a red
cable coming from the port
actuator and a green cable
coming from the starboard
actuator.
• Solution b: Verify that the
actuator LEDs on the ATP
Control Unit are illuminated.
These are the upper left
green LEDs next to the
actuator sensor cables on the
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Troubleshooting
continued
ATP Control Unit.
• Solution c: Verify that the
actuator sensor cables are
plugged into the ATP Control
Unit. The actuator sensors
should be plugged into the
two small gray cables on
the upper right corner of the
ATP Control Unit. If your
actuators do not have the
same connectors, cut the
existing connectors off and
connect the sensor pigtails
that were included with the
system (See page 5). These
are short gray cables with a
two position connector on
one end and two red butt
splices on the other end.
• Solution d: Verify the
resistance of the actuator
sensors. Use a volt-ohm
meter to check the resistance
of the actuator sensors.
Unplug the actuator sensor
cables from the ATP Control
Unit and check the resistance
at the sensor cable plug. The
resistance should be between
220Ω and 240Ω.
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