"Installation into a Fastback (STS-2S Only)
Since the Fastback has separate turn signal fixtures, the STS-2S sequencer is
used. It is specifically designed to work with two lamps on each side of the car. Also,
it doesn't have the control wires that are required on the model STS-1 and STS-2
sequencers.
Left Side
1) Remove the tail light fixture and remove the lamp sockets from them.
Make the following connections to one of the supplied modules:
2) On the INSIDE bulb, there are three wires coming out of the socket. The BLACK
wire is ground, and the YELLOW wire is the turn signal (left side, the right side signal
wire is GREEN). There are two turn signal wires.
3) The STS modules must be mounted inside the trunk. Trace the signal and ground
wires back to where they exit the car body, and find a suitable place in the trunk to
mount each module. They are small enough that most of the time, they can just lay
behind the trunk panel. Once you find the harness, unwrap it to expose the SIGNAL
and GROUND wires.
4) Inside the trunk, use a quick-splice connector (supplied), connect the RED wire of
the module to the SIGNAL wire of the harness.
5) Using another quick-splice connector, connect the BLACK wire of the module to
the GROUND wire of the harness.
6) Using an awl or other pointed tool, punch two holes in the grommet that holds the
wiring harness in the car. Then, feed the BLUE and WHITE wires through the holes
and out to the lamp sockets.
7) Cut the SIGNAL wire that goes to the OUTSIDE lamp, about 2 inches from the
socket. Strip 1/2" of insulation off the SIGNAL wire that goes to the socket. Trim the
WHITE module wire to length and strip about 1/2" of insulation. Using a wire nut,
connect it to the socket wire. The dangling wire you just cut is still connected to the
car's electrical system, so insulate it by covering it with electrical tape.
Right Side
For the Right Side of the car, repeat the above steps with the other module. Note that
the colors of the car wiring are different on this side of the car.
After you have completed the installation, proceed to the section on Testing.
Installing the Control Wires
Your STS-1 and STS-2 kits come with a length of RED/BLACK twin-lead wire. Run
this paired wire from the tail lights, behind the carpet and out the top of the trunk, near
the seal, as shown in the picture. Then route the wires to the middle of the steering
column. This is the hardest task since I couldn't find a way to get it through the firewall.
I've heard that you can get into the interior by fishing a wire through the grommet of the
hand brake cable. Also, there is a grommet for the vacuum line that goes to the power
brake booster. Be careful when running this wire. Keep it away from hot engine parts
and from sharp metal edges. If this cable shorts to ground, the lamps will not
sequence.
Once you get the wires up to the dash, make the following connections
1) Separate the PAIRED WIRES and strip 3/4" of insulation from each wire. Locate
the DARK BLUE wire that goes to connector C210 (see figure). This is the wire that
goes to the RIGHT turn signal indicator in the instrument panel. Cut this wire, strip
both ends and connect them to the RED paired wire using a wire nut.
2) Locate the LIGHT BLUE wire that goes to connector C210. This is the wire that
goes to the LEFT turn signal indicator light in the instrument panel. Cut this wire, strip
both ends and connect them to the BLACK paired wire using a wire nut.
3) Back at the tail lights, connect the other end of the paired wires to the appropriate
control wire that is coming out of the module. The RED wire goes to the RIGHT SIDE
module and the BLACK wire goes to the LEFT side module. Use the wire nuts
provided.
4) Use the tie wraps to bundle the wires to the harness. This will reduce the risk of
pinching the wires to the frame of the car when re-mounting the fixtures.
Testing
Turn on the ignition and turn on the right turn signal. It should be sequencing from the
inside to the outside. Turn on the left signal and check for proper operation. If
something isn't working, double check your wiring for errors.
Use the supplied tie wraps to bundle the wires to the outside harness and to fasten the
STS module to the inside harness. When mounting the modules, make sure that they
are oriented with the top up, and the wires pointing down. DO NOT over tighten the
tie wraps that hold the module to the harness. If you tear the rubber boot, the unit may
not function properly or may allow moisture into the system.
When re-mounting the fixtures, be careful not to pinch any of the wires on the
frame or mounting studs. This can cause a short and will destroy the module
Q: What do I get in the kit?
A: You get two modules (one for each side of the car), connectors, control wire and
wire wraps. The modules are only 7/8" diameter by 2" long, which makes them easy
to fit behind panels. With the STS-1 kit you can sequence 2 or 3 lamps on each side
of the car. If your car has three brake/turn signal lamps (dual filament, either 1157,
2057, 3157 or similar) then you simply connect the modules.
However, if you only have two brake/turn lamps, you may be able to add a third. The
instructions on how to do this come with the kit, or can be viewed from the Online
Instructions page. Since there are many different cars on the road, it would be
difficult to carry all the different types of sockets required to add to all
cars. Therefore, if you need an extra socket, you need to get it.
Q: I don't want my brake lights to sequence. Is this possible?
A: Yes. With all Webelectric Products Sequential Turn Signal kits, you have two
choices -- sequence turn signals only (no brake light sequencing) or sequence brake
lights and turns signals. The control wire that comes out of the module is used to tell
the module when to sequence. If you run the control wire to the turn signal indicator
(under the dash) the brake lights will not sequence. This is similar to the original
Cougar sequential turn signals, and is less likely to attract the attention of the local
Constabulary.
However, if you want the brake lights to sequence (once per brake pedal press) then
you leave the control wire connected to the power wire (this is explained in detail in
the STS instructions). In this mode, the brake lights will always sequence, even if you
don't have a turn signal on.
As an example, let's say you come to a stop sign and apply the brakes. The lights
on both sides of the car sequence one time when you apply the brakes, and stay
on. When you lift the brake pedal, they go off, and if you apply the brakes again, they
sequence one time again and stay on.
If, for example, when you are approaching the stop sign, you put on your left turn
signal, the left side of the car sequences. When you apply the brakes, the right side
will sequence one time and stay on, while the left side continues to sequence.
In either case, the hazard lamps will sequence on both sides of the car, every time
the flasher clicks.
In addition, for those who want total control, you can add a switch to select the mode
of the modules. With a simple two position switch (available at Radio Shack or other
electronics parts dealer) you can select whether or not the brake lights sequence."
