I want to know how to put in a relay or something to make my headlights turn off with the ignition off because i sometimes forget to turn them off and it drains my battery i have a 94 honda civic ex if that helps.
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The headlamps may be turned ON in 2 different ways. First, when the driver places the headlamp switch in the HEADLAMP position, for normal operation. Second, with the headlamp switch placed in the AUTO position, for automatic lamp control (ALC). During ALC the headlamps will be in DRL operation in daylight conditions, or headlamp operation in low light conditions.
Headlamp ON/OFF control is determined by the body control module (BCM) by a signal on the headlamp switch on input circuit when the headlamp switch is in the HEAD position. When the headlamp switch is in the AUTO position, the BCM determines headlamps ON/OFF by the voltage from the ambient light sensor.
If the headlight switch is left in the ON position, the inadvertent power control feature will turn OFF the headlights approximately 10 minutes after the ignition switch is turned to the OFF position. If the driver places the headlight switch in the ON position after the ignition switch has been turned OFF, or if the ignition switch is in the ACCY position, the headlights will remain ON until turned OFF or the battery runs dead.
Low Beams - Standard
The low beam headlamps receive voltage from the headlamp low beam relay located in the underhood fuse block. The BCM controls the relay on the headlamp low beam relay control circuit. Low beam control is determined by a signal on the headlamp dimmer switch signal circuit from the multifunction switch. When the headlamp dimmer switch signal circuit is open, the BCM grounds the headlamp low beam relay control circuit, illuminating the low beam headlamps. The right and left low beam circuits are independent are fused independently in the underhood fuse block.
Do you know how to test electrical circuit's - relay's ? How to use a digital voltmeter ?
Do they stay on after key is removed from ignition lock cylinder ?
Check HDM relay 46 in the under hood fuse / relay box . Relay contacts stuck closed , possibly ! The relay supplies B+ voltage to the low beam fuse's ! Let me know if that works or not . If not , will go on too more diagnostics steps .
Under your hood is a plastic box with relays in it, the headlight relay is stuck. Tap it with something and it will release. Probly should replace the relay. See owners manual or google the headlight relay location. Cheap at an auto store.
have a qualified auto electrician move the power for the lights to the ignition switch so that when you turn off the ignition the lights go off. or have a qualified put an extremely loud beeper in the light circuit so that it sounds when you turn off the ignition. Actually there is a beeper that sounds when you leave the lights on after you turn off the ignition.
Sounds like a bad (shorted) headlight relay switch. test: If it always happens, then unplug the relay switch at the end of your driving day. Put back in the next day. Does the engine start?
The headlight relay (little black box with 4 connectors) is located in the fusebox under the hood. It pulls straight out.
I had the exact same problem, I changed the "ignition switch" because the contacts inside were burned, this is why you see all those troubles coming in and out at different moments. It costed me 150$ to do it myself, buy the switch on an online reseller, must cheaper than the dealer! Now everything is back to normal on my Grand Prix GT 99 exept that my headlights don't light up automatically when starting the car... I have to check my fuse/relay and switch to make sure everything is ok on that side.
From reading your description you sound pretty intelligent, So forgive me but I must ask these questions. How did you wire the relay?, Did you cut the ignition wire? Does the relay have a diode?
Instead of going this route, Maybe you could hook up a chime instead. There is a chime you can purchase at Radio Shack (12v dc electronic chime) Check out this link: http://wwwx.cs.unc.edu/%7Ehays/crx/headlight_chime/, It may be helpful, and less complicated.