Keep wires away from the park brake mechanism. Route
wires clear of the steering column and pedals so they do
not contact moving parts. Before drilling holes make sure
that there are no OEM wire bundles where you will be
drilling.
5.1 Routing the Wiring
□ Determine suitable installation locations for the Buzzer and
Beacon modules.
• The Buzzer should be located such that it is audible to
individuals around the vehicle.
• The Beacon should be located such that it is visible to
individuals around the vehicle.
□ Extend the blunt-cut red and black BUZZER wiring on the control
box harness with 18AWG wiring. Solder and seal.
□ Crimp the ring terminals provided to the end of the Buzzer wires.
□ Extend the blunt-cut grey and red BEACON wiring on the control
box harness with 18AWG wiring. Solder and seal.
□ Cut an opening in the firewall plug and route harness wires from
the cab to the engine bay for the following:
• Hood switch
• Inlet valve solenoid
• Pressure sensor
• Compressor temperature sensor
• Clutch
• Buzzer
• Beacon
□ Route these wires to their destinations. One suitable way is:
• Route the Beacon and Buzzer wires to their installation
locations.
• Route the remaining wires along the perimeter of the engine
bay to the front of the truck.
• The hood switch connector rests near the driver’s side
headlight
• The remaining wiring follows the radiator cooling lines across
the radiator towards the compressor
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