I was going to mount a single rock light in the center between the doors and angle it out. I may just scrap the whole idea and move on to something else. I do a have a set of connectors from Corsair if anyone wanted them.
Running board lights
- Thread starter Gasser18
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- #42
Why not just add a dedicated switch?I was going to mount a single rock light in the center between the doors and angle it out. I may just scrap the whole idea and move on to something else. I do a have a set of connectors from Corsair if anyone wanted them.
I just wanted to them to come on when I unlocked it. Mine has the predator steps on it so. I mean it’s a really just a thing I wanted but I am going to have 2 Diode Dynamic rock lights mounted on the sides of my roof rack.
I hooked mine up and they turn on Correctly but do not go off until the 20 minute default settings. Any ideas why they don’t go off with the other lights? Thsnks
- Thread starter
- #45
What model is your LC? Mine is the 1958 model.
First Edition
Thought so.
It's looking like those of us that have the 1958 are not going to get a "plug and play" option...
Nope. When I have my 5k oil change at the dealer I am going to ask about it.
1958 doesn’t come on
LC trim with running boards works correctly
First Edition comes on but doesn’t go off
Hopefully the dealer can help us out
LC trim with running boards works correctly
First Edition comes on but doesn’t go off
Hopefully the dealer can help us out
That may be a setting in the lighting section on the infotainment.
Do you have a multimeter? I need someone with the problem of them not working to check the two wires for voltage to ground when the lights should be on, approach or door open. One wire (outer wire in the connector, don't have the color off the top of my head) is constant 12VDC the other is variable DC ~ 9VDC when off and ~ 3.5VDC when on.
Nope nothing there unfortunately
Did some checking since I had other things I needed from TIS. Unfortunately it won't be easy to check to see if the step lighst are wired into the main body ECU as the junction connector is behind the infotainment screen and it may just be a setting the dealer could enable but I doubt it.
I would imagine they are wired in but its likely a difference in ECU software that allows their functionality or not and not a simple setting that can be changed. They could likely reflash with the software if that is the case but probably it is tied to VIN by Toyota to prevent possible issues with enabling features not installed and causing issues elsewhere and future diagnostic problems if something goes wrong.
If it were me and its wired in and not working I'd check for that variable voltage at Junc. Connector # 16. (E157, two to the left of it) at pin 22 and if that voltage is present jumper that over to pin 14 on Junc. Connector #14. That would give functionality to both step light connectors, I'd caution anyone that tries this to not install a very high current draw light though.
See attached. TIS calls this a ground but it in operational reality it is not a ground at all, its variable +DC and controlled via CXPI communication from the Main Body ECU.
Edit can't attach files to the post anymore???
I would imagine they are wired in but its likely a difference in ECU software that allows their functionality or not and not a simple setting that can be changed. They could likely reflash with the software if that is the case but probably it is tied to VIN by Toyota to prevent possible issues with enabling features not installed and causing issues elsewhere and future diagnostic problems if something goes wrong.
If it were me and its wired in and not working I'd check for that variable voltage at Junc. Connector # 16. (E157, two to the left of it) at pin 22 and if that voltage is present jumper that over to pin 14 on Junc. Connector #14. That would give functionality to both step light connectors, I'd caution anyone that tries this to not install a very high current draw light though.
See attached. TIS calls this a ground but it in operational reality it is not a ground at all, its variable +DC and controlled via CXPI communication from the Main Body ECU.
Edit can't attach files to the post anymore???
Last edited:
Step light circuit
Junction connector for step lights to Main body ECU
Full exterior lights customize options
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