Keyless Entry and Remote Starting!

I just wanted to cover some basics I found when I installed my remote starter + keyless today. At this time I have an automatic so I will be touching on the manual stuff, but not really covering it.

The system I chose is the UltraStarter 1250. It can handle relays for multiple functions(trunk or fuel latch, door) and obviously the 12v relays for ignition and accessory. I've looked through their documentation and it seems all their units use the same 13-14 pin harness + 6 pin harness. Their six pin harness has 5 important pins on it. For those who don't know, the first color is the primary. This means that the wire is mainly that color, with a stripe or dot of the second color.

Six Pin layout:
Pin 1 - Yellow - 12v 30a Output for Starter
Pin 2 - Green - 12v 30a Output for Accessory/Heater
Pin 3 - Red - 12v 30a Input(needs to be constant)
Pin 4 - Red - 12v 30a Input(needs to be constant)
Pin 5 - White - Selectable Output(the unit can be programmed to put out another 12v 30a lead, I didn't need it)
Pin 6 - Blue - 12v 30a Output for Ignition

Fourteen Pin layout(mostly for relay):
Pin 1 - Yellow - Factory Re-arm Output (I haven't messed with this yet because I believe I need another relay to trigger the re-arming)
Pin 2 - Red/White - Trunk release (I might get another actuator to pull the trunk in the future, but for now it's just an extra relay trigger)
Pin 3 - Brown - Factory Disarm Output (See re-arm)
Pin 4 - Orange - Starter kill & Anti-grind (at this time I haven't really read into the value of this)
Pin 5 - White/Blue - Horn honk output
Pin 6 - Black/White - Negative Parking Brake Input(Manual trans only)
Pin 7 - Purple - Positive Door Pin Input(Manual trans only)
Pin 8 - White - +10 amp output to Parking Lights - (Necessary to program the device, and have them flash on locking)
Pin 9 - Green/White - Hood Pin Switch Input (checks for hood closure)
Pin 10 - Green - Negative Door Pin Input(Manual trans only)
Pin 11 - Black - Ground
Pin 12 - Pink - Brake Switch Input(Security feature to stop driving without the key in)
Pin 13 - Blue/White - Tachometer Detection, needed for the computer to understand that the car itself is running.
Pin 14 - Blue - Diesel Glow Plug Input

I know most of this information is specific to the manufacturer, but I've looked at a few of these units now and come to the conclusion that I like these the best. They have all the leads I would ever need, as well as providing flexibility in one unit to handle an AT/MT car. The only downside so far is the shortness of the 30amp wires. They're about 2 feet long, and inhibit a great deal of options for remote starter location. I've also found multiple websites giving bad information on the stock 300zx wiring harness pinout. I can't say for sure what difference there is between digital models, but what they had was blatantly wrong in some parts. I checked other distributor materials and came to the same conclusion. That's the main reason I am posting this.

I should also add that wiring a killswitch or just a general rocker switch and push button start could be done with these leads off the ignition harness.

300zx Wiring Harness info:
Here's the fun part of the information that's the most valuable. I am listing the leads I didn't connect up at the bottom of this section.

The first four are found in the ignition harness to the right and below the steering wheel. It should look like the biggest harness there. I had some difficulty getting to the harness itself, so be careful not to pull a pin out of the socket in the harness. When connecting the new 6 pin harness to this one, you are going to want to splice connections in. This is different than just cutting a wire in half and connecting one end. You need to get a wire tap to connect the existing wire to the new one. These can be found at just about any hardware store, and may require a crimping tool. If you don't splice your regular key ignition won't work anymore.

Constant 12v Source - White/Blue - (For Pins 3+4 on the 6 Pin connector)
Ignition Lead - Black/White - (For Pin 6 in the 6 Pin connector)
Accessory/Heater Lead - White/Purple - (for Pin 2 in the 6 Pin connector)
Starter - Yellow - (For Pin 1 in the 6 Pin connector)

The parking light lead on the 14 pin connector needs to be connected to the light switch harness connected to the bottom left of the steering wheel. Again, we are splicing and not cutting the existing wire because we still want the switch to work.

Parking Lights - Red/Green - (For Pin 8 in the 14 Pin connector)

The Tach sensor wire is another one all to itself. It should be(assuming digital+analog wiring is the same) on the left 'wall' of the drivers area. Again, we are splicing because we don't want to break the existing tach. This area was a bit tight, so I opted to cut the wire and extend it a bit. If yours has more room, I would just try to splice.

Tach Sensor - Yellow - (For Pin 13 in the 14 Pin connector)

I didn't set up the brake sensor just because it was another wire I had to deal with, and isn't terribly necessary. However, you should be able to find it above the brake pedal near the switch for the lights.

Brake - Blue/Yellow - (For Pin 12 in the 14 Pin connector)

The horn switch is also pretty simple to find, again we are splicing to save the existing system. I don't remember exactly where it is, but it should be connected to the steering column.

Horn - Blue/Orange - (For Pin 5 in the 14 Pin connector)

The last thing I am connecting to is the factory disarm lead. I am not entirely certain whether this needs a relay or not between the computer and it, so I haven't connected it yet. However, you should be able to find it in the driver side kick panel.

Factory Disarm - Red/Blue - (For Pin 3 in the 14 Pin connector)

From here on out, these are the pins I didn't connect.

Pin 1 on the 14 Pin connector: Unnecessary considering the locking of the door triggers the re-arming process. However, the system can force a re-arm if you connect this to the Red/Green or Red/Grey wire in the drivers side kick panel.
Pin 2 on the 14 Pin connector: I don't have a second actuator for this, so I haven't connected it. I will be adding one in the future however. This could also be used for the fuel door, or if you shave a door handle in the future. This could also possibly be used for any manner of relay uses, including window opening/closing, heat adjustment, even turn signals, emergency flashers, and manual horn operation.
Pin 4 on the 14 Pin connector: I have no idea what to do with this yet.
Pin 6 + 7 + 10 on the 14 Pin connector: Used for the manual trans models.
Pin 9 on the 14 Pin connector: Who cares? I'm going to be in the car before it's rolling.
Pin 14 on the 14 Pin connector: I haven't switched to diesel yet.

Installing the actuators:
The first step is to remove the door panel. To do this, follow the instructions listed on this site.

Once the door panel and plastic cover is removed, we need to figure out position for the actuator. For me, the best place seemed to be on the rear side of the door on the inside. Due to the positioning of the guide for the window, and the availability of holes to work with, there really is only one place to add the actuator.

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From here, I chose to mark the location for the two holes with a nail to scratch the paint using the actuator on the outside of the door. I then drilled the holes and moved the actuator to the inside of the door. From there it was as simple as lining it up and screwing it in.




The next part seems to be the most painful, and requires the locking mechanism to actually be working at this point. The easiest method is to set the actuator to the unlock position. Once there, bend the rod on the actuator to fit the existing lock rod. This might take some time to get just right, but if you don't it will make the lock much more stiff and wear out the actuator. Once you get a good fit, again set the actuator to be unlocked to make sure you didn't move it at all. Once that is done use the existing connector to link the two rods together. Use bolt cutters, or whatever else you have that might work to cut the excess actuator rod from the top of the connector. This will stop it from jamming against the rod above.



You should be all set at this point, but if you're smart and haven't done so already, you will want to take this opportunity to change out the speakers, or remove that nasty tint.

[Will be filled in more at a later time]