Auxiliary Fog light control module?

Trying to get my Hella Fogs to light up using the existing wiring, connectors, and harness but I got no juice at the bulbs!
The amber LED comes on when I hit the dash switch for fogs but no 12v at the bulbs...
Now, I am wondering if I saw correctly, that if your year and model did not have them from factory then the Control Module does not know to turn them on when you hit the switch.
Is this true? Do I need the Control Module to be programmed?
Are the replacement Control Modules I see on the Internet pre-programmed and maybe all I need?
Or should I abandon and wire up new with switch, relay and fuse?
http://www.roverlandparts.com/1999-2004-discovery-ii-auxiliary-fog-light-control-module.aspx

I would like to know the outcome of this as I will be wiring in some spots on my D2 very soon.

From what I know of this, the control module is an optional extra or an after sales add-on accessory. To be honest, the module seems to be a little less than reliable, and here in the UK, just a tad expensive for what it is.

When you say that the indicator lamp lights on the dashboard, I presume that you're looking at the top switch on the left of the instrument binnacle; that's for the front fog lights in the front bumper (fender).The second one down is the rear foglights.

The control module would have a switch in the third slot down.

Given the reliability issue and the fact that the module is an after sales accessory, I would say that you'd be better of trying to wire your Hellas up with a fuse and relay in the correct manner to fit with your current vehicle regulations.

Thank you brian47....yes I mean the top left switch on instrument binnacle, however my 01 Disco II SD did not come with the fogs mounted in the front bumper option...but I have the switch, harness, connectors under the wheel wells, etc etc so I assumed I can use this setup. Only thing I saw missing was a relay in fuse panel under the bonnet (hood) so I ordered and installed. Still no good.
If no other solutions are discovered I will likely just wire them up new.
I would like however, to locate this mystery Control Module just to verify it is there and do some testing (amp/volt meter) My search for location on the internet has come up empty! ugggh

Looking at my copy of RAVE, the relay R130 is triggered from the BCU. The switch is a non-latching switch which therefore requires some electronics to give a toggle action to the switch. The power for the lamps is from fuse F3 (15 amps) in the engine compartment fuseboard and down to the header on connector K109 on Blue/Red wires.

The fact that the BCU is in the system means that the fog light circuit might not be enabled; a diagnostic device such as Nanocom, Hawkeye, lynx, Testbook or a visit to your local LR dealer to enable the circuit might be needed. If the little amber "tell-tale" light comes on and off as it should does suggest that the circuit is enabled, in which case a closer examination of the wiring would be in order. All the wiring is shown as Blue with a Red tracer. Get somebody to operate the switch while you listen to the relay clicking on and off.

Regarding the controller module, this is used for the dealer installation of "Driving lights" or spotlights, not foglights. The module is probably not fitted on your vehicle, so it would be pointless looking for it. It's not easy to see where the module is supposed to fit, but it looks like it's either at the back end of the fuseboard or on the bulkhead.

Defender heated seat switch and a relay

Thank you again Brian47, all great info! much appreciated!
A bit confused however...you said
"If the little amber "tell-tale" light comes on and off as it should does suggest that the circuit is enabled, in which case a closer examination of the wiring would be in order"
But then also said...
"Regarding the controller module, this is used for the dealer installation of "Driving lights" or spotlights, not foglights. The module is probably not fitted on your vehicle, so it would be pointless looking for it."
My Question: If I have the amber light on the top left switch on the dashboard (binnacle) illuminating....wouldn't it also mean that I do in fact have a controller module somewhere? and that it might need to be programmed or enabled?

The wiring for the front fog lights is installed as part of the main build of the vehicle, then depending on model the light units are fitted or not fitted. The fog light system does not use the additional control module but might require that they are enabled in the BCU.
The spot lights or driving lights as they're sometimes called are optional extras which if installed by the main dealers will require the installation of the control module.
They are separate systems and only the additional spotlight system uses the control module.
Regarding the tell-tale indicator, the wiring diagram shows it coming from the header on connector K109, so that implies that power is available at that point.
Lack of the control unit does not mean that you can't have extra driving lights, just wire them up in the "old fashioned" way.
MJI has recommended using a heated seat switch from a Defender which I believe will fit into one of the binnacle slots and is a toggle action switch rather than a push switch.

You're confusing two different lighting systems.
The switch on the top left of the binnacle, controls the front fog lamps, which may or may not have been fitted in the front bumper at the factory.

Owing to road lighting regulations, front fog lamps are interlinked with the vehicle's headlamps, and are controlled by the Body Control Unit (BCU), which is fitted to all vehicles, and controls many of the vehicle's electrical circuits.

The BCU can be found, with several other ECUs, behind the glove box.

The 'control unit' that you've linked to, is from the driving lamps, or spotlamps, wiring kit, which was sold as an accessory kit, for dealer or customer fitting.

If fitted, this 'control unit' is mounted at the bulkhead end of the under-bonnet fuse box.

This wiring kit used a non-latching switch, which looks like this -



There are 3 versions of this switch -

STC50098 - Ash Grey (pre-facelift), fits on the LH side of the Binnacle

VVN500060 - Black (facelift), fits on the LH side of the Binnacle

VVN500070 - Black (facelift), fits on the RH side of the Binnacle

The non-latching switch, when pressed, signals the 'control unit' to turn on the spotlamps.
It will only do this, if the vehicle's headlamps are on main beam (high beam), and will turn them off, if you dip the headlamps.

The 'control unit' is unreliable, and expensive to replace.

If you have the wiring kit installed, it's an easy job to replace the non-latching switch and 'control unit' with a latching switch and a 30A relay.
I posted details of how to do this, here - https://www.landyzone.co.uk/land-rover/safari-5000-driving-lamps-wiring-diagram.203300/#post-2204556

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Wow....awesome guys!
And at the risk of being a moron...couldn't I simply wire my Hella spots into the existing wiring for my non option front bumper fogs and then just "enable them" in the BCU?
Brian47 said "might require that they are enabled in the BCU."
I mean...I am fine with them only coming on when I have the main beams on (high beam), and then going off when I dip the mains...
AFter all, I already mounted the Hella spots and wired them to the connectors under my tyre fenders...seems like if I can "enable the BCU to use them" would be easy quick last step...no???
I WILL have spot beams before this coming weekend is out!! thanks to you all!

So....Can my spots be enabled in the BCU? and if so...who could do this?