Reprogramming remotes

[f5fstop]

If there is a way to do it without a scan tool, this would be worthwhile posting somewhere here for everyone. Many times there are ways to do things w/o a scan tool, but the engineer in charge of the part has not verified it and will not add it to the procedure. (Example, checking DTCs on a C5 Vette via the message center. )

As for the H3G, don't get excited, it is the designator for the Global H3 or better known as the export model from Shreveport and S.Africa.

[mountainbiker]

Originally Posted by f5fstop

As for the H3G, don't get excited, it is the designator for the Global H3 or better known as the export model from Shreveport and S.Africa.

A bit off the topic of programming remotes, but would the H3G by chance have any of the following things we need here in Europe:

• (1) amber rear turn signals,
• (2) active front/side amber turn signals (normally not active in the H3),
• (3) white front parking lights (where the H3 has amber)
• (4) red rear fog light(s)

[f5fstop]

Originally Posted by mountainbiker

A bit off the topic of programming remotes, but would the H3G by chance have any of the following things we need here in Europe:

• (1) amber rear turn signals, YES
• (2) active front/side amber turn signals (normally not active in the H3), YES
• (3) white front parking lights (where the H3 has amber) YES
• (4) red rear fog light(s) YES

Guess I could have said YES to all....



The European taillight has the backup lights in the same place, but the existing park/turn/stop red has been split in two with the bottom half being clear with an amber bulb. This took up the reflector area between the park/turn/stop lamp and the backup lamp, so the little round plug, just below the light assembly has been replaced with a reflector.
The vehicle I have seen, has the rear fogs at each end of that bar that hangs down to protect someone from sliding under the rear end of the H3. (Can't remember exactly what they call it, since we don't require it in the States.)
The Side repeaters (turn signals) are located just in front of the front fender flares and they stick out quite a bit so as to be seen.

Front park lights are clear and the front headlamps are different than in the States/Canada; I believe they are auto leveling (or something like that).

[mountainbiker]

f5fstop, to grab some of those rear mods, I would prob need a new BCM and maybe significant new wiring--now for the million dollar question:

I am curious if I could get my hands on a pair of rear tail light assemblies and mod mine to it. I've already had to do quiet a bit at the rear already to be legal, but the H3G tail lights might make it look a bit cleaner.

[f5fstop]

Rear taillight could be a bear to switch out; not the physical housing, but the wiring.
The US/Canada version has the BCM controlling the park/turn/brake lamps at each bulb. When you turn on the park lamps, the BCM energizes the PRK/LP relay, which in turn supplies power to the rear bulb. This should be the same in Europe, but CANNOT guarantee this since I have no European schematics.
However, the turn and stop filaments are directly controlled by the BCM. When you turn on a signal, the BCM pulses that circuit to give a flashing bulb, if you apply the brakes, the BCM closes that circuit to the other filament inside the bulb to turn on the brake lamps (turn signal will override the brake).
To install the European taillight, a new BCM would be required, OR you could do some creative wiring.
The park lamp light should be the same.
You could run a wire from the brake switch to a relay to energize the second filament in the rear red bulb to simulate rear brakes. (I suggest a relay as to not overpower the brake lamp indicator circuit that is primarily an input to the BCM).
You could then run a couple circuits off the turn signal indicator circuits to relays, to energize the rear amber turn signals.
The turn signal switch signal the BCM via a resistive type switch, similar to the old cruise control switches. One resistive signal says right, another says left. The BCM does use two separate circuits to the turn signal indicators in the I/P cluster. (I tapped for the turn signal mirrors I installed on my H3 into these wires.)
I believe running the separate wires, using relays, should enable you to run the European taillight assembly.

The front turn signal lamp assemblies should be available at a European Hummer dealer, and the side repeaters should be available. Not sure if someone in the states could obtain these items or not, possibly partsguy.

[mountainbiker]

f5fstop thanks for all that and the other stuff. Oh how I wish I had a South Africian model already. I have less than 30 more days to make my mods to my US spec model. My plans are

- add a light/buld, tied to the front turn signal, to give make my front corners active when turning
- add a set of small white parking lights in the grille (keeping the front amber)
- I will add a dangling rear fog light
- the backup lights (sadly) I will wire to be the turn signals with amber bulbs.
- I will add a dangling backup light or make the above function as both
- I will somehow disable the original red turn signals

I really am not looking forward to cutting on my H3. I will begin probably this coming week as I have assembled almost all I need, and it is covering my dining room table.

I think if I could get a few of the South African pieces it would make my H3 look a bit cleaner / stock. I will ask partsguy if there would be any hope.

Thanks again f5fstop.