gwatpe
Well-known member
Will need to travel for an extended period across outback Australia and the issue of how to add some decent long range and mid range lighting to a car that has essentially no options for nudge or bull bars onto which additional lights could be mounted was needed.
I wanted to install lights with no cutting of the electrics and no mods to the front end plastic bumper and no additional switches on the dashboard and no holes in the firewall.
The spot lights had to be pencil beam for long distance vision and had to be able to be disabled from the high beam at times.
The PHEV has 2 independent light circuits. The normal driving LOW / HIGH beams with HID and Halogen bulbs, and the fog light circuit. Both these systems have on stalk controls as well as instrumentation panel indicators.
I was able to splice a sense wire into the wiring of the high side of each of the halogen bulbs of the high beam and fog lights. The sense wire on the fog light drives a relay coil. The switched output of this is combined with the sense wire from the high beam and drives the coil of a second relay. The switched contacts of the second relay control power to the HID spot lights, so the only time the spot lights can be driven is if both the fog light and the high beam is activated. I have replaced the 55W H11 halogen fog light bulbs with yellow LED equivalents. I have added a 34W LED light bar that is operated directly in parallel with the high beam halogens to give more white fill above the white line from the STD HID low beams.
The result is that the annoying line across the middle of the vision region is gone and the yellow pools of light from the halogen high beams is complemented with white. When the HID spot lights are activated then an additional pool of light is added that goes off into the far distance.
The additional power of about 40W with all light blazing will not tax the electrics.
Here is the front end look.
I have tested the operation of the FCM and it is not affected. There is minimal air obstruction for radiator cooling. The best part is that the car was not modified. The mounting of the spot lights is very rigid, essentially part of the steel cross member, and not connected in any way to the plastic bumper. The lights have plastic housings and the support brackets are bolted together, so can be removed completely. All is designed to work in with the crumple features of the car.
The clip system on the panel covers allowed relatively easy access to the back of the fog lights and mounting of the aluminium light support brackets.
I wanted to install lights with no cutting of the electrics and no mods to the front end plastic bumper and no additional switches on the dashboard and no holes in the firewall.
The spot lights had to be pencil beam for long distance vision and had to be able to be disabled from the high beam at times.
The PHEV has 2 independent light circuits. The normal driving LOW / HIGH beams with HID and Halogen bulbs, and the fog light circuit. Both these systems have on stalk controls as well as instrumentation panel indicators.
I was able to splice a sense wire into the wiring of the high side of each of the halogen bulbs of the high beam and fog lights. The sense wire on the fog light drives a relay coil. The switched output of this is combined with the sense wire from the high beam and drives the coil of a second relay. The switched contacts of the second relay control power to the HID spot lights, so the only time the spot lights can be driven is if both the fog light and the high beam is activated. I have replaced the 55W H11 halogen fog light bulbs with yellow LED equivalents. I have added a 34W LED light bar that is operated directly in parallel with the high beam halogens to give more white fill above the white line from the STD HID low beams.
The result is that the annoying line across the middle of the vision region is gone and the yellow pools of light from the halogen high beams is complemented with white. When the HID spot lights are activated then an additional pool of light is added that goes off into the far distance.
The additional power of about 40W with all light blazing will not tax the electrics.
Here is the front end look.
I have tested the operation of the FCM and it is not affected. There is minimal air obstruction for radiator cooling. The best part is that the car was not modified. The mounting of the spot lights is very rigid, essentially part of the steel cross member, and not connected in any way to the plastic bumper. The lights have plastic housings and the support brackets are bolted together, so can be removed completely. All is designed to work in with the crumple features of the car.
The clip system on the panel covers allowed relatively easy access to the back of the fog lights and mounting of the aluminium light support brackets.