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  #1  
Old 04-21-2008, 02:47 PM
 
Join Date: Apr 2008
Posts: 7
Default 240 Brake Lights

I have a 1990 Volvo 240 wagon. The brake lights stoppedworking. I checked the fuse, the brake switch, and the lights themselves - all good. There is power going to the brake switch and when the pedal is depressed there is power going through. Does anyone have an ideawhere should I look next?

Thanks
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  #2  
Old 04-21-2008, 09:15 PM
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Join Date: Mar 2008
Location: SoCal
Posts: 57
Default RE: 240 Brake Lights

Check the wiring harness running through the tailgate. The wires are known to get brittle and break where they run under the hinges.

Best of luck.
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  #3  
Old 04-22-2008, 01:46 AM
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1986 Volvo 240
 
Join Date: Nov 2006
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Posts: 575
Default RE: 240 Brake Lights

I would check the bulb failure warning sensor.

The only brake light wire that goes through the tailgate hinge is for the 3rd brake light.

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  #4  
Old 04-22-2008, 08:58 AM
 
Join Date: Apr 2008
Posts: 7
Default RE: 240 Brake Lights

Thanks. Any idea where I might find this sensor and what it looks like? I have been trying to trace the wires following the brake light switch - not much I can see...

I replaced the wires through the tailgate about 2 years ago - I suppose its possible one could break, but I don't see how it would prevent all the brake lights from working. If it was a short, I would expect the fuse to go and its fine.

Thanks again - I am getting challenged on this one!
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  #5  
Old 04-22-2008, 07:46 PM
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1986 Volvo 240
 
Join Date: Nov 2006
Location:
Posts: 575
Default RE: 240 Brake Lights

The BFWS is a fat orange cylindrical sensor.

Go to fcpgroton and search for 1362370, $55.

It's under the driver's side dash.




[IMG]local://upfiles/7929/3EA30690278145A1B23B16046A915D2D.jpg[/IMG]
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  #6  
Old 04-22-2008, 08:43 PM
 
Join Date: Apr 2008
Posts: 7
Default RE: 240 Brake Lights

Blue Goose Thanks very much. I have brake light power to the BFWS when the pedal is down, but I am not sure how to measure if the BFWSis the problem - I'm not sure which connections I could try to by-pass. I guess I should just get a new one.

Thanks again for your help. I live in a rural area and there are no Volvo guys out here.
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  #7  
Old 04-23-2008, 12:40 AM
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1986 Volvo 240
 
Join Date: Nov 2006
Location:
Posts: 575
Default RE: 240 Brake Lights

According to the Volvo green book, the wire from the brake switch should be blue-red and it goes to pin 9 of the BFWS. Yellow wires come out of pins 10 and 11 and they go to the brake lights. The center brake light comes out of pin 5 with a blue wire. However, sometimes the wiring colors are known to be different.

I hate to spend $55 unless I needed a new one for sure. No junk yards in your area? Whenever I hit the local junk yard I try and pick up assorted relays as spares. Or you could pop the cover off and look for poor solder connections. On the other hand, it wouldn't hurt to put in a new BFWS. I replaced my fuel pump relay, although the old one was good. Just on general principles. Relays tend to go bad after 10-20 years.

Post back.





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  #8  
Old 04-23-2008, 07:57 AM
 
Join Date: Apr 2008
Posts: 7
Default RE: 240 Brake Lights

Blue Goose, Thanks again for your post. There is a guy that has some junked Volvo's, but he is a 3 h drive away, so I placed an order with FCP Groton. Ihadtraced the blue-red wire from the brake switch to the relay - I will check tonight if there is power getting through.

Your information ismost helpful.

Good idea about the fuel pump relay - hate to get stuck someday.

Thanks again.

I am the original owner of a 1990 240 Wagon - manual shift (~ 400Kms). The car continues to amaze me with its quality.
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  #9  
Old 04-23-2008, 08:07 PM
 
Join Date: Apr 2008
Posts: 7
Default RE: 240 Brake Lights

Blue Goose - I tested the BFWS tonight and when the brake pedal is depressed there is juice getting through from the BR wire to the yellows. I also took the BFWS apart and inspected it and it looked like new inside - no sign of any solder issues. You indicated the yellow wires go to the brake light, but there is a white wire at the brake light. Somewhere the power is getting disrupted - any ideas where I should check next.


At this point I am thinking of running a new wire back...

Any help you can provide is appreciated.

Thanks.
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  #10  
Old 04-23-2008, 08:52 PM
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Join Date: Nov 2005
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Posts: 25
Default RE: 240 Brake Lights

Did you try cleaning the contacts on the tail lights themselves? One of my tail lights was broken, and the other stopped working while I was driving from Texas to Ohio...(not good at night) and I couldn't figure out what was wrong with it. I sprayed contact cleaner on all of the connections at the tail light, and haven't had any problems since. It's definitely cheaper than $55...

Wes
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Old 04-23-2008, 08:52 PM
 
 
 
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Tags
1990, 240, 940, bfws, brake, light, lights, problem, relay, sensor, sign, switch, tail, volvo, wagon


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