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Discussion Starter #1
I want to put some LED strip lighting around the footwell of my car, and I was wondering if anyone can tell me how the dome light timing and door state are detected?

I have two separate ideas, which I'm thinking of setting up a small controller for:
1: strip lights on when dome light on, possible capacitor discharge as a 'timer' when car is turned off.
2: strip lights when door is open (turns on when door card light turned on)

I don't want to use the door open light on the instrument cluster because it doesn't distinguish between doors. Also thinking of using the passenger weight sensor as a trigger.

Which door pins / wires relay the open state, and is there an easy place to tap the dome light?

Thanks!
 

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I want to put some LED strip lighting around the footwell of my car, and I was wondering if anyone can tell me how the dome light timing and door state are detected?

I have two separate ideas, which I'm thinking of setting up a small controller for:
1: strip lights on when dome light on, possible capacitor discharge as a 'timer' when car is turned off.
2: strip lights when door is open (turns on when door card light turned on)

I don't want to use the door open light on the instrument cluster because it doesn't distinguish between doors. Also thinking of using the passenger weight sensor as a trigger.

Which door pins / wires relay the open state, and is there an easy place to tap the dome light?

Thanks!

If you look on the frame of the car when you open it, you'll find a rubberized limit switch that when open, turns on the lights for the car. It's on the B pillar, or the pillar that divides the front and rear seats.

Now if I were you, I would try and tap into the dome light circuit, which requires removing the headliner, which takes a good 30 or so minutes to gain access to that portion of the wiring. I would just remove the entire headliner assembly so it's not in your way. I would be careful though, the wiring is kinda thin and you can mess things up if you're not careful


1: strip lights on when dome light on, possible capacitor discharge as a 'timer' when car is turned off.
Unless you're electrically inclined to wire up something like that, which you'll need more than just a capacitor to accomplish, you're likely better off with an Arduino and just programming it from there. If you want to be fancy and go the extra mile with not needing all the Arduino, you'll need to create your own SOC with a 555 timer.

2: strip lights when door is open (turns on when door card light turned on)
Care to elaborate here?
 

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Mr. Roo
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No need to use the dome lights, it's much easier to tap into the key ring light, that's what I did for my extra LEDs. But that doesn't give you power per side. I'm not really sure why you'd want only one side to come on at a time though, but as DH said, you could tap into the pressure switch.
 

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The door trigger wires in the driver’s kick panel.

| 12V|white & WHITE/ red |+ |ignition harness |

| STARTER|BLACK/ white |+ |ignition harness |

| IGNITION|BLACK/ red |+ |ignition harness |

| SECOND IGNITION|blue/red |+ |ignition harness |

| ACCESSORY|red |+ |ignition harness |

| POWER LOCK|see direct fax | | |

| POWER UNLOCK|document #1070 | | |

| LOCK MOTOR|GREEN/ YELLOW | |body ECU *1 |

| UNLOCK MOTOR|blue/black | |body ECU *1 |

| DISARM DEFEAT|RED / white | |body ECU *1 |

| PARKING LIGHTS +|green | |drivers kick panel |

| PARKING LIGHTS -|red | |headlight switch |

| HEADLIGHTS|RED / blue |- |headlight switch |

| DOOR TRIGGER|*3 |- |body ECU *1 |

| DOME SUPERVISION|use door trigger | | |

| TRUNK/HATCH PIN|RED / yellow |- |drivers kick panel |

| HOOD PIN|blue |- |alarm module *4 |

|TRNK/HTCH RELEASE|blue/white |5wi|body ECU *1 |

| FCTRY ALARM ARM|arms with lock | | |

|FCTRY ALRM DISARM|disarms with unlock | | |

| DISARM NO UNLOCK|BLACK / YELLOW *7 |- |steering column |

| TACHOMETER|black | |igniter *2 |

| SPEED SENSE|RED / yellow | |abs and traction ECU *5 |

| BRAKE WIRE|GREEN / WHITE |+ |brake pedal switch |

| HORN TRIGGER|GREEN / WHITE |- |steering column |

| WIPERS|blu/blk(L),blu/red(H|+ |steering column |

| LF WINDOW UP/DN|red - green |A |drivers window switch |

| RF WINDOW UP/DN|red - green |A |RF window switch |

| LR WINDOW UP/DN|red - green |A |LR window switch |

| RR WINDOW UP/DN|red - green |A |RR window switch |

| SUN RF OPN/CLOSE|not recommended | | |

| RADIO 12V|blue / YELLOW |+ |radio |

| RADIO GROUND|brown |- |radio |

| RADIO SWITCH|gray |+ |radio |

| RADIO ILLUMINATE|green |+ |radio |

| LF SPEAKER|pink - purple | |amplifier *6 |

| RF SPEAKER|lt. green - blue | |amplifier *6 |

| LR SPEAKER|black - yellow | |amplifier *6 |

| RR SPEAKER|red - white | |amplifier *6 |

Notes:

NOTE: This vehicle has an immobilizer system that needs to be bypassed when adding remote start. Use DEI part number 555U. *1 The body ECU is attach to the top of the fusebox. *2 The igniter is on the driver side strut tower. *3 The driver door trigger is RED / green, front passenger door is RED / black, rear doors is RED / white. *4 The alarm module is above the drivers kick panel. *5 The ABS and traction ECU is above the drivers kick panel. *6 The amplifier is above the passenger kick panel. The left rear woofer wires are BLACK/ white - yellow/red. The right rear woofer wires are RED / white - WHITE/ blue. *7 This is the ignition key sense wire. Using the status output wire from the remote start to ground this wire will disarm the alarm without unlocking the doors.
 
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