HELP! ST202 fog light wiring, car is taken apart! Options

[phokur]

I am trying to install my ST202 fog lights and I am stumped. In the car's fuse box inside the car, there is a fuse called "FOGS". Mine even has a 20amp fuse in it already. I can't seem to find where it leads outside the car. Where is the switch/output for the fogs?

[phokur]

Have any luck Davey?

[BloodyStupidDave...]

Have any luck Davey?

Not so much. I'll tell you what I have so far.


The main power from the engine bay comes in on IA1 (having already gone through the 100A alt and main fuses). IA1 is located at the inpane junction box (left kick panel on LH drive cars, right kick panel on RH drive cars). Power is routed internally inside the inpane junction box to one side of the fog fuse. Power is routed internally from the other side of the fuse to IF8.

A blue/white wire connects IF8 on the inpane junction box to ID1.3 at the left kick panel (LHD) or right kick panel (RHD). The other side of ID1.3 is routed to pin 4 of the fog light relay. The fog relay is attached to junction box #1 at the same location. Pin 1 of the fog light relay then goes to both fog lights as a red/white wire. There is a splice point (at location EA) to feed the two lights - the splice point is about half way along the fender (right fender for RHD, left fender for LHD).

The wire on the other side of the fog lights is white/black. The white/black wire from the LH fog light runs to the splice E3 and then grounding point EB at the front of the left fender while the white/black wire from the RH fog light runs to a splice E2 and then the grounding point EA at the front of the right fender. Additionally, there is a white/black wire that runs between the two splice points (E3 and E2) (routed with the engine bay wiring loom across the top of the radiator).

On RHD cars, E3 is located in the front left fender and E2 is located midway between the left and right fog lights on the wiring loom that crosses the top of the radiator. On LHD cars, E3 is located midway between the left and right fog lights on the wiring loom that crosses the top of the radiator and E2 is located in the front right fender.

Pins 1 and 4 of a relay are the relay switch. Pins 2 and 3 are the coil. A green/black wire runs from pin 3 of the relay to pin 11 of the left combination switch (steering stalk switch). A white/black wire runs from pin 10 of the combination switch to a grounding point (dunno which one). pins 10 and 11 of the combination switch are the two sides of the fog switch.

For EDM (Europe, including the UK & Ireland), a green wire runs from pin 2 of the fog light relay. This is connected to the switched supply for the parking/tail lights (so that the fog lights can only come on if the combination switch is at the tail or head position - that is, they only come on when the tail lights are on).

The green wire runs from pin 2 of the fog light relay to 1K.12 on junction box #1. Junction box #1 is wired so that 1K.12 is connected to 1A.8, 1C.12 and 1F.5.

1C.12 is connected to ID.12 via a green wire. ID.12 goes to one side of the 15A tail lamp fuse, the other side being connected to pin 3 of the taillight relay. Pins 1 and 5 of the taillight relay are connected to pin ID.2 which in turn is connected to 2A.1 and then the 100A Alt fuse via a white cable.

1A.8 is connected to a green wire that exits into the front fender and from there supplies the front parking lights (and if fitted, front sidemarker lights).

1F.5 is connected to BQ1.1 (the connector for the floor loom) via a green wire. The other side of BQ1.1 is also a green wire, this travels the length of the car and feeds the license plate lights, tail lights (and if fitted, the rear sidemarker lights).

Pin 2 of the fog light relay is connected to IF.9 and from there to pin 2 of the integration relay. Among other things, the integration relay (pin 1) is connected to ID1.5 and from there via a cyan wire to pin 14 of the light control combination switch. Pin 16 of that switch is ground via a white/black wire to J1.A and then grounding point ID (both in the left kick panel for LHD, right kick panel for RHD).

Additionally, it may be that the green wire is a different colour and/or routed differently for other markets. I believe it is standard practice in the US for the fogs to only operate when the low or high beams are on, whereas in the UK one can technically drive with parking lights and fogs. In some other countries with some cars it isn't possible to put fogs and high beams on at the same time.

Other points to note:
* There may be a connector on the red/white wire between the relay and E1. But I don't think there is.
* There is probably a junction box or splice point on the white/black wire from the combination switch.

I'll update this post with a diagram at some point. A picture is worth a thousand words but takes longer to produce on a computer.

This post has been edited by BloodyStupidDavey: Sep 11, 2007 - 2:23 PM

[BloodyStupidDave...]