Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

driver's side headlight stays on even when switch is in off position

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Old Sep 16, 2003 | 05:07 AM
  #1  
L_fty's Avatar
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From: Edison, NJ, USA
Default driver's side headlight stays on even when switch is in off position

Hi, does anyone have a wiring diagram for the 6gen accord? My driver-side headlight remains powered even when the headlight switch is in the off position. The passenger-side headlight works normally. I was guessing it must be a faulty relay that is left in the "on" position. This morning a quick look under the hood fuse box I saw "lighting 1 relay" and "lighting 2 relay".. I swapped these and tested the headlights... but nothing changed..

Any help would be appreciated!!!!!!!!!!!!!
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Old Sep 16, 2003 | 05:59 AM
  #2  
Kavehman's Avatar
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From: Sydney, Australia, Australia
Default Re: driver's side headlight stays on even when switch is in off position (L_fty)

Have you changed the bulb recently ? If yes then try taking it out and putting it back in again, maybe its a bad installation .......
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Old Sep 16, 2003 | 07:02 AM
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From: Edison, NJ, USA
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Nope didnt change the bulb...
The bulb wouldnt have anything to do with this... the socket is powered when it shouldnt be... that's the problem..
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Old Sep 16, 2003 | 09:51 AM
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bump
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Old Sep 16, 2003 | 07:54 PM
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Default Re: (L_fty)

change the switch
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Old Sep 17, 2003 | 05:27 AM
  #6  
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Default Re: (Stripped Honda)

The switch doesn't have separate circuits for R & L. This is truly bizarre, since you already tried swapping relays 1 & 2. Those are for R & L, so if it was the relay's fault it would have moved to the other side. I looked at the circuit diagram last night & couldn't see any obvious place for it to screw up like this.

Does your car have the auto-shutoff feature (EX)? If so, there's connections to the R & L multiplexer boxes, which might be doing something. But I didn't see an obvious way for those to screw up & only light one side.

First, can you dismantle the relay box enough to see the terminals underneath the relays? Look for something touching together where it's not supposed to.

I forget which relay is which (1 & 2; L or R). When the switch is off, and one headlight is on, remove each relay. When you pull the correct one, the light should go off. If so, does the relay click when you pull it?

If the headlights stay on when you pull the relay, then check the wiring from there to the headlamp. The diagram shows it wired directly from the relay to the headlamp. Something must be connected into that wire to supply power to the headlight.

If the headlight goes off when you pull the relay, it might be a stuck relay. If this were the case, your problem should have moved to the other side when you swapped the relays.

Otherwise, you have to look for a terminal under that relay that's bridged where it shouldn't be. It can't be anywhere in the circuit 'upstream' of that point, since there's no separate right & left wires before that.
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