Adding Daytime Running Lights for DOT Approvals in Canada

[BighornBob]

Hi all,

I have brought a JDM Bighorn 3.1 TD in to Canada and have one more item required prior to gaining licensing approval. That thing is the addition of a Daytime Running Lights module. I have obtained a module from Hamsar (http://www.hamsar.com) that I have mostly figured out except for the one last item and that is: Where the heck is the Oil Pressure Switch on this engine. I have scoured the manual until my eyes are crossed and just can't locate it and being a neophyte with engines especially diesel's I can't seem to locate it in the engine bay.

What I need is a + (positive) voltage when the oil pressure is up so that it triggers the DRL Module to turn on the lights. Where can I get this signal?

Help please! And most appreciated for all the expert knowledge I have been gleeming from this sight.

Thanks in advance, Bob

[pig75]

The oil pressure switch is just in front of the starter motor there are 2 senders the small one is for the light the bigger one is for the gauge
you will need to use a relay

[BighornBob]

Thanks for the help!

I was thinking that one side of the switch is grounded and the switch opens with oil pressure to make the light go out. If I put the sensor on the side of the switch that connects to the light I will get a good positive signal when the oil pressure switch opens which is what I need.

Does that make sense?

Cheers, Bob

[pig75]

That might work. You might need a diode in the line to stop feedback

[BighornBob]

I am hoping that the feedback will be eliminated with this unit as it is "solid state" lol, but I will be prepared to insert a diode if there is any problems.

Thanks again for your help! Bob

[Blondini]

My LED day runners run off the key

DSC00264 (Large).JPG

[geeves]

do they have to run only when the engine is running or can you do as above straight from the key. Hela make a very nice day running lamp in led so it wont run the battery flat

[BighornBob]

Doing it from the key would be acceptable but I really don't want the lights on if the engine is not running and the vehicle already has Cibie driving lamps so I was not planning on adding more. Must be the Scotsman in me, unwilling to spend on something already covered.

Thanks everyone for the help, I will update results when finished.

[BighornBob]

Just an update, for those that may be interested.

I was able to break into the wiring loomb and splice into the wire from the oil pressure switch where I obtained a nice signal to hit the DRL controller trigger with.

The engine starts, oil pressure comes up to switch set point and DRL's magically come on. There is even a nice little delay after shutdown where the lights stay on (part of the controllers features).

If anyone is interested in schematic notes, I can probably pdf them and pass them along. I think the hardest part was finding a spot on the right side of the engine to mount the controller, sheesh they have packed a lot in there.

Thanks again for the help with where to look.