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Installing Fairlane Cornering Lamps for the Ford EF II Falcon

  • This document describes how to fit, and connect the Ford NF/DF Fairlane/LTD Cornering lamps, for use in an EF/EL Fairmont and Fairmont ghia model Ford.
    Cornering lamps are designed to illuminate the area in which the vehicle is turning, by switching on when the park or Driving lights are switched on, and the turn signal is activated.
    They usually stay activated for a short period, once the turn indicators have been dis-activated.
    The following modifications will allow for the following
  • The advanced Electrical modification will allow for illuminating corners, when both the turn signal, and park lamps are illuminated, as well as switching both Cornering lamps on, if the Highbeam circuit is activated.
    The advanced circuit described herin, is a very simple timing circuit, based on a Resistor, capacitor, Transistor, and some diodes, and should cost roughly $10.00 for the two Timing Circuits, and $120 for the cornering lamps. I have not included a simple circuit wiring diagram, due to the many ways in which people may wish to wire these lamps to their vehicle
  • The cornering lamps can be purchased from any ford dealer, and their part number is xxxxxx
    The following components are also required, and can be purchased from any electronic store.
    Below are the Catalogue numbers, and Prices quoted from Jaycar Electronics and are correct as of July 2001.
  • 2 x 3A SPST Relays - (SY-4066) $3.60 each
  • 2 x BC337, NPN Transistors - (ZT-2115) $0.36 each
  • 2 x 560ohm 1% Metal Film Resistor - (RR-0566) $0.38 (Pack of 8)
  • 2 x 33 microfarad Electrolytic capacitor - (RE-6095) $0.25 each
  • 6 x 1N4004 Diode - (ZR-1004) $0.36 (Pack of 4)
  • 1 x Proto Board - (HP-9540) $3.80 each
  • 2m of Wiring (Must be able to handle approx 3Amps)
  • 2 x Ticktac Boxes - (Must be empty, IE not contain Tic Tacs)
  • 1 x Reel of Electrical Tape (Use good quality)


    In addition to these items you will need the following tools.
  • 1 Soldering iron (Around 20 Watts), and solder
  • 1 Phillips Head screwdriver
  • 1 8mm socket wrench - for removing the front headlamps
  • Wire Cutters
  • A small hacksaw or sharp scissors to cut the protoboard to size
  • About 1 full day to complete the modification
  • Corning Lamp Circuit Schematics


    When the turn signal is operating and the Turn signal lamps are on, the Capacitor is charged.
    When the Indicator lamps are off, the capacitor is discharged through the 560Ohm Resistor, Transistor and Relay.
    With the impedance of the Resistor, Transistor, and Relay, it takes approximately 5 seconds for the capacitor to discharge.
    If the Park lamps are illuminated, then current is allowed to flow from the Transistors Collector, to the emitor, if the Capacitor is in a charged state.
    This means that the Relay, and thus the cornering lamp is illuminated for a period of 5 seconds when the turn signal lamp have been switched on, and the park lamps are also on.
    The first diode, connected to the Turn signal line, is used to stop the capacitor from discharging through the turn signals, as these have a very low impedence.
    The second diode stops back EMF from flowing when the relay is un-energised, stopping potentially high spikes from damaging the Transistor
    A Third diode can be connected between the Diode, and the Relay, so as to allow Illumination of the Cornering Lamp circuit, whilst the high beams are activated. (This diode stops the current from flowing from the transistor emitor, through to the vehicles high beam circuit.
    The Highbeam circuit is connected via the diode, to allow the cornering lamp to operate, if the Highbeams are operated.
  • This proceedure assumes that you have basic knowledge of electronics, and can build simple electronic kits.
    Also, the proto board must be have the copper tracks running in parallel.(IE do not get the criss cross type).
    Finally, the components should be positioned exactly in the holes shown in the figures.
    This is due to the fact that the component legs must interconnect with one another as specified by the above circuit diagram.
    Connecting a BC337 transistor to a circuit
    Connecting a Diode to a circuit
    Connecting an Electolytic Capacitor to a circuit
    Jaycar SY-4066 Relay Connection Information

    Because I have not taken any photohraphs of how the Circuit was peiced together, and that I beleive that very few people will not attempt this circuit, I have not bothered showing how to solder the peices in to the proto board.
    The Above informaion should give all the required details on how to build the circuit, providing that you know how to build a simple electronic kit.
    However, If there are enough requests from people, regarding this circuit, I will consider building another circuit take pictures, and document where the components fit together on the board.
  • The cornering lamps fit in to the cavity that is occupied by the 2 Duct covers in the bumper
  • Removing the front bumper ducts. The front bumber duct covers have three clips each.
    If these duct covers are simply pulled out ith force, it is possible to break these plastic clips. If you wish to use these covers again in the future, it is best to remove the Front Headlamps, and turn indicators, to gain access to the back of the Bumber, and clips.
    Once you have access to the back of these clips, simply press them together, and pull on the Duct cover
  • Once these are Removed, it is then a matter of simply mounting the cornering lamps on to the bumber.
    There are 3 screws which hold the cornering lamps in place. These should have been provided with the Cornering lamps.
    These figures will give you a good indication of how the cornering lamps are mounted.
    The front bumper, with no lamp / Cover fitted
    The Cornering Lamp, and Original Duct Cover Front
    The Cornering Lamp, and Original Duct Cover Top View
    View of inside the Bumber, with the Headlamps removed
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