Eberhard Manufacturing Company
POWER-UP Locking System with Built-In Alarm
Wiring Breakdown
2-16720-7 Compartment Wire Harness with Dome Light feature:
Base System for (7) compartment door locks:
• Main trunk wires for both road side & curb side are 14 ga.
• Branch wires for connection to the actuators are 18 ga.
• Branch wires for connection to the dome lights are 14 ga.
Harness branch wire/power actuator wire connections – Retracting actuator to lock:
• Green harness wire connects to Blue power actuator wire
• Blue harness wire connects to Red power actuator wire
Harness branch wire/power actuator wire connections – Extending actuator to lock:
• Green harness wire connects to Red power actuator wire
• Blue harness wire connects to blue power actuator wire
• End Connector – Connector (male) on end of compartment wire harness to plug into mating
connector (female) on 1-16720-6 Cab Wire Harness or optional 2-16720-8
Expansion Relay Wire Harness.
• End Connectors – Connectors (female) on end of compartment wire harness to plug into mating
connectors (male) on 2-16720-9 Expansion Compartment Wire Harness or
optional 2-16720-10 Expansion Compartment Wire Harness.
NOTE: Drill and grommet all holes in vehicle as required to prevent accidental grounding.
2-16720-8 Expansion Relay Wire Harness with Dome Light Feature:
Expansion onto 2-16720-7 Compartment Wire Harness for (8) to (18) compartment door locks:
Required for 2-16720-9 Expansion Compartment Wire Harness.
• Red Wire – Wire connection to auxiliary OEM power source in cab – 10 ga. wire
– Wire length = 18 feet 2 in.
• Black Wire – Wire connection for chassis ground – 10 ga. Wire
– Wire length = 4 feet
• End Connector – Connector (male) on end of expansion relay wire harness to plug into mating
connector (female) on 1-16720-6 Cab Wire Harness.
• End Connectors – Connector (female) on end of expansion relay wire harness to plug into
mating connector (male) on 2-16720-7 Compartment Wire Harness.
NOTES: 1) Drill and grommet all holes in vehicle as required to prevent accidental grounding.
2) Locate and mount relay blocks in a high position in front drivers’ side compartment.
Make sure the relays are in a position where they can be accessed for replacement if
necessary and where they will not be damaged or come into contact with water.
Rev. 9-11-2019 Page 8 of 36
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