ECN 04007 Manual 440-1008 Rev D Page 9 of 10
If the unit still does not run after the breakaway battery is fully charged, verify that the voltage between the white
wire and the yellow or blue w/ white stripe wire is at least 12 volts.
♦ If the voltage is less than 12 volts, either the breakaway switch or the breakaway wiring is defective.
♦ If the voltage is greater than 12 volts, the Hydrastar™ actuator should be returned for repair.
♦ After completing the above steps, reset the breakaway switch.
Trailer brakes too aggressive
• Reduce the gain setting on the in-cab electronic brake controller.
• Check brake adjustment.
Trailer brakes not aggressive enough
• Increase the gain setting on the in-cab electronic brake controller.
Clicking sound comes from unit on a repetitive basis
• Make sure the brake controller in on Cargo’s approved list. See Section C. ELECTRICAL INSTALLATION
REQUIREMENTS – REQUIRES AN ELECTRONIC IN-CAB CONTROL.
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