[derekl123]

Came across J.A's mods on the map light and footwell. In addition to doing these two mods, I'd like to add another switch that lets me turn off/on all of the interior lights (map light, door lights, dome light, cargo light) on demand. Based on the diagram below, would it just involve cutting the "Red with Green stripe" wire at Pin 9 of the 1K Connector and wiring it like so on a SPDT switch:

• Prong 1: Chassis Ground
• Prong 2: One side of Pin #9
• Prong 3: Other side of Pin #9

This way, the up position (Prong 1/2) turns all of the lights on and the down positions (Prongs 2/3) keeps the ILE running as normal. Does this sound right? Would there be any danger to doing it this way (door open indicator while driving)? I'd like to have the ability to turn all the interior lights on while driving.

[sigepbiker]

I've thought about doing this too. Someone found out that Pin 16 on the same connector is part of the ILC which is an open pin. So an easier way would be to ground Pin 16 through a switch.

As far as errors - I don't know either. I'm not positive but I think the door open indicator while driving is through the door switches, not the light circuit.

Good luck.

[mrpurplepenguin]

Originally Posted by derekl123

From the other schematics on JA's site, it looks like the red wires are constant +12V coming from the dome relay (see here), which means that all other color wires are the various ground paths for the different lights. I think your suggestion of adding a switch to ground on R/G will only allow you to light up the ignition key cylinder light; from what I can tell, none of the other lights will have a new path to ground beyond the factory grounding through the ECU.

[A/V1]

I drew this up for another guy a while back. This should help you accomplish what you are trying to do.



I've also included this info about relays if you haven't messed around with them much. You can use an OEM Toyota relay, or an aftermarket Bosch style 30A relay. I labeled the contacts to use so, but if you have any questions, ask.

[derekl123]

Originally Posted by A/V1

I drew this up for another guy a while back. This should help you accomplish what you are trying to do.

Attachment 167861

I've also included this info about relays if you haven't messed around with them much. You can use an OEM Toyota relay, or an aftermarket Bosch style 30A relay. I labeled the contacts to use so, but if you have any questions, ask.

Attachment 167862

Makes a lot more sense now. I was reading the schematic wrong.

[A/V1]

One other possibility for wiring this up would be without the relay, but only if you are using a good quality switch, which is rated for at least the amperage rating that would be running through it. Frankly, it won't be that much considering it'll just be the interior lights, and maybe running board lights, footwell lights, and whatever else you may have added.

I would still suggest connecting a multimeter up to verify before foregoing using the relay. Anyway, here's the diagram for that:

[derekl123]

Originally Posted by A/V1

One other possibility for wiring this up would be without the relay, but only if you are using a good quality switch, which is rated for at least the amperage rating that would be running through it. Frankly, it won't be that much considering it'll just be the interior lights, and maybe running board lights, footwell lights, and whatever else you may have added.

I would still suggest connecting a multimeter up to verify before foregoing using the relay. Anyway, here's the diagram for that:

Attachment 167863

So after I do this wiring, if I were to open one door instead of just that open door's courtesy light turning on, it would cause all of the door courtesy lights to turn on (Since they'll be wired so that the ground signal of the open door could go to all 4 door lights)?

[A/V1]

No. The diodes will prevent that.

[derekl123]

Originally Posted by A/V1

No. The diodes will prevent that.

I didn't even see the diodes in your diagram. Thanks!

[derekl123]

Originally Posted by A/V1

No. The diodes will prevent that.

One more question. In your diagram, this would only allow me to either turn on the door lights or keep them automatic. If I wanted to turn them all off, would I have to keep each door ground signal separate and use something like a 4 individual SPDT switches (or 2 DPDT) so I can have off, on and normal capability?

[A/V1]

What do you mean by automatic?

If you mean have them shut off if you forget to shut them off manually (as the body control unit does), then you would have to wire it up with the relay, and wire the 12v input with only having power when the ignition is in acc, or on.

If that's not what you mean, please explain.

[derekl123]

Originally Posted by A/V1

What do you mean by automatic?

If you mean have them shut off if you forget to shut them off manually (as the body control unit does), then you would have to wire it up with the relay, and wire the 12v input with only having power when the ignition is in acc, or on.

If that's not what you mean, please explain.

By automatic I mean they operate as normal. Whatever door opens, only that door's light turns on.

[mrpurplepenguin]

I think "automatic" means "OEM functionality" in this case.

Derekl123, if you also want to have the ability to turn off all the lights you don't necessarily need to wire up individual switches for each lamp. You could instead use a single switch on the incoming +12V from the dome relay to cut power to all lights. Even better: you could purchase a DPDT switch in on-off-on (3 position, center off). Use 1 pole for factory grounding or A/V1's grounding circuit to switch from "auto" to "on", and the other pole to interrupt the +12V supply to the lights. This would make your switch functionality down=auto, center=off, and up=on (or the reverse of that), similar to how the overhead dome light switches are arranged.

[derekl123]

Originally Posted by mrpurplepenguin

I think "automatic" means "OEM functionality" in this case.

Derekl123, if you also want to have the ability to turn off all the lights you don't necessarily need to wire up individual switches for each lamp. You could instead use a single switch on the incoming +12V from the dome relay to cut power to all lights. Even better: you could purchase a DPDT switch in on-off-on (3 position, center off). Use 1 pole for factory grounding or A/V1's grounding circuit to switch from "auto" to "on", and the other pole to interrupt the +12V supply to the lights. This would make your switch functionality down=auto, center=off, and up=on (or the reverse of that), similar to how the overhead dome light switches are arranged.

This is a much simpler option than what I was thinking. Thanks.

[A/V1]

Originally Posted by derekl123

By automatic I mean they operate as normal. Whatever door opens, only that door's light turns on.

Ok, the way my mod is drawn up, when the switch is off, your interior lights will operate as the Toyota engineers designed them to. Including only the particular door lamp which is opened to illuminate.

With the switch on, then a ground would be provided, all interior lights would then turn on (provided the roof lamp switch positions are set to the proper position), ALL door lamps will turn on, whatever added footwell lighting you may have added to the circuit should turn on as well.

The only difference between opening a door, and flipping your switch is that basically, the door circuit goes through the body ECU and will automatically shut off the interior lamps after I believe it's 30 minutes.

Of course, with your switch, you aren't using the body ECU, so it WILL NOT shut off the lights automatically. They will stay on as long as that switch stays on. That is, unless you use the relay method, and power the relay with a source that only has power when the ignition is in ACC or ON. Then you are essentially making your own auto off.

If you want to make it so NONE of your interior lights come on, then that's a different story. But again, pretty easy to do.

Clear as mud?