Federal Signal Corporation FHL-TAIL Manual
Federal Signal Corporation FHL-TAIL Manual

Federal Signal Corporation FHL-TAIL Manual

Flasher for tail and deck lights

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2562579A REV. A 910

Safety Message to Installers of Federal Signal Products

People's lives depend on your proper installation of our products. It is important to read, understand, and
follow all instructions shipped with this product and the related add-on products. In addition, listed below are
some other important safety instructions and precautions you should follow:
To properly install this equipment, you must have a good understanding of automotive electrical
procedures and systems, along with proficiency in the installation and use of safety warning equipment.
Do not install equipment or route wiring in the deployment path of an airbag. Failure to observe this
warning will reduce the effectiveness of the airbag or potentially dislodge the equipment, causing serious
injury to you or others.
To be an effective warning device, an emergency warning system produces bright light that can be
hazardous to your eyesight when viewed at a close range. Do not stare directly into the lights at a close
range or permanent damage to your eyesight may occur.
If a vehicle seat is removed, verify with the vehicle manufacturer if the seat needs to be recalibrated for
proper airbag deployment.
When drilling into a vehicle structure, be sure that both sides of the surface are clear of anything that
could be damaged. Remove all burrs from drilled holes. To prevent electrical shorts, grommet all drilled
holes through which wiring is run.
Never attempt to install aftermarket equipment that connects to the vehicle wiring without reviewing a
vehicle wiring diagram available from the vehicle manufacturer. Insure that your installation will not effect
vehicle operation or mandated safety functions or circuits. Always check the vehicle for proper operation
after installation.
Locate the controls so the VEHICLE and CONTROLS can be operated safely under all driving conditions.
The flasher should be frequently inspected to ensure that it is operating properly and that it is securely
attached to the vehicle.
File these instructions in a safe place and refer to them when installing and/or reinstalling the product.
Failure to follow all safety precautions and instructions may result in property damage, serious injury, or
death.

Overview of the Model FHL-TAIL

The Model FHL-TAIL tail light flasher alternates red and white light, creating an effective rear-warning signal
to greatly reduce rear-end collisions. The flasher also provides an additional output for rear deck package
tray lights. The flasher is designed for vehicles that have the negative post of the battery connected to the
chassis of the vehicle. The 12-wire module has isolating diodes for the reverse wire that is required for many
new cars and trucks.
Model FHL-TAIL Flasher for Tail and Deck Lights

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Summary of Contents for Federal Signal Corporation FHL-TAIL

  • Page 1 Overview of the Model FHL-TAIL The Model FHL-TAIL tail light flasher alternates red and white light, creating an effective rear-warning signal to greatly reduce rear-end collisions. The flasher also provides an additional output for rear deck package tray lights. The flasher is designed for vehicles that have the negative post of the battery connected to the chassis of the vehicle.
  • Page 2 Device” on page 6. Installing the Flasher The Model FHL-TAIL Headlight Flasher is designed to be water resistant. However, to ensure years of trouble-free operation, it should be mounted in a location that is protected from direct water spray and high temperatures.
  • Page 3 Connect the 14 AWG extension wire to the fuse holder. DO NOT CONNECT TO HIGH-MOUNTED STOP LAMP—Do not connect the Model FHL-TAIL flasher to the High-Mounted Stop Lamp (i.e., also known as Cyclops, Center Light, and CHMSL. Flashing the High-Mounted Stop Lamp violates Federal Motor Vehicle Safety Standard (FMVSS) No.
  • Page 4 Model FHL-TAIL Tail Light Flasher Driver-Side Connections See Figure 1 on page 5 and make these connections: Locate and cut the brake-light wire. Connect the BLUE wire from the flasher to the end of the wire that goes to the brake light.
  • Page 5 Model FHL-TAIL Tail Light Flasher Figure 1 Wiring Diagram + POST OF BATTERY FUSE 15 A +12 Vdc ON/OFF FUSE NOTE: EXTEND DRIVER SIDE BRAKE/TAIL WIRE WHITE WIRE TO DRIVER SIDE REVERSE WIRE BATTERY WITH 14 AWG WIRE PASSENGER SIDE...
  • Page 6 Model FHL-TAIL Tail Light Flasher Red/Black Wire The RED/BLACK wire is the auxiliary output that controls the package tray lights (Figure 2). For the wiring instructions, see Figure 2. Figure 2 Wiring diagram for installation with package tray lighting +12 Vdc...
  • Page 7: Limited Warranty

    Limited Warranty Federal Signal warranties the Model FHL-TAIL Headlight Flasher for five years from the date of purchase to the original purchaser against any manufacturer defects or workmanship. This warranty applies only to the units installed according to the manufacturer’s installation instructions and operated within the specifications of the unit.
  • Page 8 Model FHL-TAIL Tail Light Flasher Returning a Product to Federal Signal Before returning a product to Federal Signal, call 800-264-3578, 800-433-9132, or 800-824-0254 to obtain a Returned Merchandise Authorization number (RMA number). To expedite the process please be prepared with the following information: •...

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