Dash Wiring Harness - Factory Five Racing MK4 ROADSTER Assembly Manual

Key and anti-theft module

Dash Wiring Harness

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Socket set, extension, regular, Torx and Phillips head screwdrivers, needle nose pliers, hammer,
and marker tape.
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Dash wiring harnesses, 96-04 traction control switch
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The wiring comes out in stages. Keep the sub-assemblies together as they are removed.
Remember to identify both ends of every connector that you disassemble. The easy way to do
this is to tape and number each side of the connector the same or use colored zip ties. The
connectors will only work if they're mated to the other similar shaped connector. Almost every
connector is different in the car, so cross wiring is rare. Labeling will help speed up the job later.
Remove the dash from the car.
Remove the wiring harness and all of the "black boxes" hooked into it from the dash. Mark all of the
connectors to prevent any confusion later.
Disconnect the connectors from the headlights and engine harnesses marking each connector with what
it connects to.
Remove the traction control switch from the car if it is so equipped. If you do not want to use the switch
you can use a SPDT switch available at Radio shack or Home Depot.

On 96-04 Mustangs, if the traction control switch is not plugged in, the computer by default will
leave the traction control ON which will make the engine cut power ~5000 rpm under heavy
acceleration (really annoying). It is a good safety precaution though if someone else will be
driving the car that is not used to the performance levels capable from this kit.

The headlight dimmer switch should be kept if dash lights are wanted otherwise the switch will
have to be bypassed.
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