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It's the time-delay relay for the interior light. When you open the driver's door the Black* wire from the door jamb switch grounds the interior light - thus completing that circuit and turning the dome light on - and the White-Black* from the driver's door switch completes a circuit that allows current from the Green-Red* to flow through a little heater coil inside that delay relay.
Only the driver's door switch has these two wires - the others just have a single Black.
The heat causes a bimetallic element to close contacts which provide a second ground for the interior light. When you close the driver's door the heater cuts out and it takes about 10-15 seconds for the device to cool enough to open the bimetallic switch. Anytime the driver's door is open the heater is drawing current. Presumably Volvo thought this out and it's not much current and not much heat.
You probably know you can shut off any of the door switches by pressing them in and turning them about 1/8 to the right. Closing the door will resume normal switch operation. Rather handy when working with door(s) open for an extended time.
*All the above circuit descriptions and wire colours are as shown in my 1983 Green Book, so YMMV! The delay relay in my parts collection (from an unknown year) has wire colours of Brown(ground), Green, Blue-Black and White-Black.
--
Bob: Son's XC70, my 83 244DL, 89 745 (V8), 98 S90, and XC60. Also '77 MGB and some old motorcycles
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"You probably know you can shut off any of the door switches by pressing them in and turning them about 1/8 to the right."
Bob, did you discover that on your late model cars? I wish all our 240s had that feature, at least on the driver's door switch. But I'd have to buy new ones to get it. First time I found one, it was on my MIL's 940. The new boots too. :-)
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Art Benstein near Baltimore
The average dog is a nicer person than the average person.
-Andy Rooney
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Art, my 83 has the feature on all four doors. Ditto my S90. I may have fibbed about the self-reset function, as all the 240 switches in fact require you to rotate them back to the left to work normally.
I vaguely recall replacing the 240 driver's door switch at some point with one from the PnP, since my DL model did not have the 2-wire door switch that would be needed to add the delay relay, but that was long ago. Adding the delay relay is still on the to-do list. Well, the project is started, as the 2-wire door switch is in there - for a decade or two now.
I've had the car for 32 years now, so it's getting tougher to remember all that I've done to it. At my age it's getting tougher to remember where I put my glasses 30 seconds ago, too.
Hope you are well....
--
Bob: Son's XC70, my 83 244DL, 89 745 (V8), 98 S90, and XC60. Also '77 MGB and some old motorcycles
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Bob, thank you for granting my wish.
Someone on TB was interested in how to kill that annoying chime while the door is open, working inside the car. Yes, one of the two terminals works the dome light and the other the "you left your keys in" warning, combined with the dome light delay option.
Here's what I posted on TB after first talking about "old and new" features and allowing that bug you put in my ear to motivate me.
I gathered a few of these switches from my junk box to see if I could determine how to tell if they had that feature. Among them, I found one, which would twist lock, part # 1362770 made by TRW for Volvo. Another which would not, was identically marked. Taking them apart, I learned both had the feature, but the one which would not twist was simply stuck inside. The silver movable contact had over time adhered to the plastic stem, preventing easy twisting.
I cured the remainder of those I thought were missing the feature by grabbing the stem with pliers and gently working it in a twisting motion (with the stem half-way depressed). Surely there is a chance the switch will be ruined if my word "gently" is not communicated well. Remove the boot first, of course.
By the way, I am doing so much better than when you last saw me. Thanks. Hope you are as well as then.
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Art Benstein near Baltimore
Draw your curves first and then plot your data!
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A discovered feature: the dome light delay turner-offer relay thingy.
Removed on the 1990 240.
Yet I see the 1991 and 1992 have this feature. As it may make haste on battery drain, I guess I'll remove these if warm.
It would be swell to wire in more interior dome light action ... someday.
cheers,
dud.
--
The Volvo 164: The Mightiest of All Volvo Automobiles in Perpetuity
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"As it may make haste on battery drain, I guess I'll remove these if warm."
Kitty, I predict you will find the thermal delay relay warm, unless you decide to investigate with the driver's door shut. The image of that second story creeper comes to mind...
:-)
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Art Benstein near Baltimore
"If you want them to RTFM, make a better FM" - unknown
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Dear Uncle Art,
Sir, thank you kindly for your reply! Happy Friday!
Indeed, this is a matter of exploration and discovery!
I'd read all of the Volvo owner manuals backwardly and frontwardly. Works best reading it frontwardly. I did not ever make the connection by leaving the ceiling dome light switch on even at night. The ceiling dome light stays on no matter the dome light switch on position with the doors closed, it seemed before this. So, worried about battery drain, I leave the dome light switch in the center off position. I turn it off immediately. I leave it off so it does not illuminate on opening a door. (Volvo 240 stealthy! Rollin' under the radar and lidar!)
I though it'd work the same as all four of my 1970s-era well missed Volvo 240s. (I really miss the 1970s 240s. 242s especially. Like my 1975 244 with M40 back and metric B20, yet I did not know how special that engine was, yet I kept the valve adjust perfect and the PCV clean.)
Yet, with the door open, I thought the door sill plunger switches would turn these off as with my four 1970s 240s. I thought one or more of the plunger switches was shorted when all doors are closed. I pulled each switch on each of the three 1990+ 240s, clean and lubed them, verified conductor insulation, and even replaced a few where the "keep out the weather" rubber boot had failed!
A real "D'oh!" on my part. This happens far more than I report here. I'm rather myopic sometimes.
The other two fuzzy 240 sedans have these thermal delay relays, then, as you say.
I had a month-long fiasco replacing the stop light, or brake light, switch. I could not gyrate my corpulent countenance between replacement of two new switches quickly as I had one new SLS failed like days after putting it in, and got another. I left the dash-speedo head and knee bolster out for a few weeks. I left the battery connected.
So, it was when I went back to the car, to try to finish the brake light switch replacement early in the cool morning. I opened the door, grabbed the thermal delay relay. Maybe within a minute or two of door open. The cylinder shrink-wrapped thermal delay relay was very warm. Well above 100°F. Why I asked and it is now disconnected in the wee li'l red wagon beastie (that would love a garage to sleep in as all of them would).
I'll pull the knee bolster and check the the other two.
I'll guess the thermal delay relay warms quickly on open door, then?
Do these dome light thermal delay relays fail over time or short out?
Second story creeper? Is that what you call those? Sounds sort of creepy. They look useful. I think I sort of outsize the one in the image. High gravity center and all. I'd fall over. Like skateboard, surfboard, roller blades, ice skating, and such. Tried it and fall over each time.
Please have a super swell weekend Uncle Art! May teh Volvos adorning your stables roll you and the families and pals through the weekends as you please!
No word on a tech writer job in Vancouver, WA. They said today. Rather it be BC, Canada. I want to go to Minneapolis or Finland or, well, I dunno. Someplace private and free and friendly.
Sir, thank you most kindly.
Dole Chopped Salad Kit Sunflower Crunch MacDuff.
--
The Volvo 164: The Mightiest of All Volvo Automobiles in Perpetuity
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Catsandvolvos.com - is this your website? Some pretty cool photos.
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Uncle scorron!
Happy Sat-your-Day (all day long)!
Thank you. I have nuttin' to do with www.catsandvolvos.com other than bask in the awesomeness of it all. After the www.brickboard.com, the mightiest and most powerful site of all and in perpetuity on the i-net, we have www.catsandvolvos.com. (Though www.turbobricks.com, www.ovt.org, and all and anything Volvo sites are my fave, even the Volvo Cars Group and Volvo AB Group - you can gets them on your www.linkedin.com).
The photography IS SO wonderful! Had you searched through the archive going back a few years? (I sort of wonder if our Uncle Jerrod Stenberg, and his various consortium and hegemonies, had anything to do with it?)
See the archive at http://catsandvolvos.com/archive
The image quality would suggest mostly film photography. Yet, mind you, I have a 16-century era Sony DSC-S30 and Sony DSC-S50 that I'd use for industrial photography in an industrial design, manufacturing engineering environment. So, I'd imagine 35 mm film or maybe 2x2 (120, 620) formats like TLR cameras. Some of the images are clearly vintage, yet the folks that treat these image do so with kind caring and real deftness to bring out the art quality of the subject.
I like the images from Japan and adjacent places. Many are from all over Europa, home of everyone's RWD Volvo, or, all Volvos autos. It's all very inspiring photography
I'd done a lot of art photos of urbanscapes and landscapes in low-light conditions. Not much like this, but I'd like to also do some Volvo art images like this. I have no kittys, still, yet.
So, instead of Grumpy Cat image links, I like the catsandvolvo image links.
I'd also guess the brickboard folks have or would like to record images and post them on catsandvolvos.
Some of you brickboard folks live the dream - you have your Volvos, and your cats, or pets, more generally, and you have you beloved family too, that accepts and loves you with your simultaneous and extemporaneous Volvo and Cat fancy.
I imagine brickboard.com and turbobricks.com members have Volvo images and pet images or both or other unrelated cool images to post on cats and Volvo dot com.
I may start posting at some point. No ads,yet requires JavaScript, cookies to post. Maybe a media run time (Flash) to see it all. Some of the images are animated GIFs, too.
Welp, yep, dome light dimmer, as everyone indicates. I started to trace the wire route, yet my big fat hands and the in the under the dash spaces don't fit too well. I was glad to get the stop light switch in. In my haste, I broke a few cruise control pieces. I had it working in the li'l red 1990 Volvo 240 DL wagon some time ago, yet it quit, and I don't cruise the open road by Volvo 240 much anymore.
Folks, I'm ever so grateful to y'all if you could spare a well wishing (silently), no need to post. I have a technical writer interview in Vancouver, WA this Tuesday. So, after 21 years trying, I'd like to finally get a West Coast city gig.
Damn teh Juan de Fuca plate and the Cascadia Subduction Zone! The Yellowstone Caldera continues to rise as the large magma chambers fill, so, a good ale, good job, and a super swell gal-pal that at least tolerates and better, the Volvo, in SW-WA state, would be swell. 25 years trying to get there - a West Coast city.
I'd also like to gain a few more Volvo autos. A 1975-1980 242. A 164. And maybe another 1992+ 240. All with manual transmission. (Or stuff a 1991+ LH-3.1 Jetronic driveline from a broken body 240 into that vintage 242 waitin' to scoot.)
Happy Sat-your-day!
Thank you,
Kittys Grey Volvo disappearing in to the radioactive Pacific Ocean fog.
--
The Volvo 164: The Mightiest of All Volvo Automobiles in Perpetuity
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http://www.volvotips.com/service-manual/volvo-240/Volvo-240-wiring-diagrams-1985.html
Page 63 and 64 of 148, item C, delayed courtesy light relay. Page 64, you can see the arrow zig-zag to the brake peddle area. If you have it you should have delayed courtesy lights.
I will answer the next question ahead of time. Yes, if you do not have delayed courtesy lights it would be called a discourtesy light relay. I normally keep my dome light off in my 1993 244 unless I need it so I cannot tell you if my dome light has a delay or not.
Tom
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Hi Tom,
Thank you.
I also leave the dome light off. Even when the door is closed, the light turns on at the switch, so, a door-pillar mount dome light switch must remain closed, or that
I'd not ever seen the dome light dim.
... discourtesy light relay ...
Riotous, utterly!
Thank you,
Duffy's Tavern
337 Main Street, Chico, CA.
--
The Volvo 164: The Mightiest of All Volvo Automobiles in Perpetuity
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Going on the shape and location I'd go with Phil's supposition. It's in the '90 wiring diagram.
I can't see all the wire colors but if it's the interior light delay I think they should be black, white/black, blue/black and green.
See http://forums.turbobricks.com/showthread.php?t=237951 and scroll down a bit.
This device will slowly drain your battery when it starts to go south, or so I have read here on the BB.
Edit: Hey, I just realized that Turbobricks post was by none other than Art.
--
'80 DL 2 door, '89 DL Wagon
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Hi Uncle bulletproof,
Indeed, at 25-26 years old, and it's very warm just sittin' there, no key in the 1990 240 DL li'l red wagon ignition. Had not driven it in a month. Battery held charge enough to start a few days ago.
(I'm not going to drive it with no brake lights.)
Yes, like Art writes there, it does resemble a fluorescent (mercury-vapor) lamp starter.
Though I like the idea in the turbobricks thread of expanding the interior courtesy lighting.
As warm as it is, that would indicate a closed circuit with low resistance, so I'll wiggle by portly self in there and take it out. Maybe restore the cruise control, and treat the rear wheel bearings.
Thank you,
Grey Kitty
--
The Volvo 164: The Mightiest of All Volvo Automobiles in Perpetuity
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I'm not sure what it is either but since it gets warm, I will say it is your dome light delay-off relay.
Have you had the drivers door open all the time while under the dash? I'll bet you did unless you like laying across the seats upside down. :-)
As the can cools off, the contacts inside open up, shutting off the dome light.
Even with dome light turned off it heats up. Nice tiny battery drain as I remember.
I don't park the car and leave the door open for long periods of time.
Especially if the dome switch is forward or backwards for timed delay and the light was on. That's doubling down even more.
If you unplug it, something will stop working!
Of course then, you will find out what it was! :-)
Phil
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Hiya Phil,
Thank you. Happy Friday!
Welp, it's warm I guess at all times. So far as I know, the North America market, or the U.S. market 1990 240 does not include a dome light delay. I'll look at the 1990 owner manual again. Probably forgot if yes. D'oh!
I'll look again at the anemic wiring diagrams. I think it may be something to do with cruise control, which this 1990 240 DL wagon includes, or the SRS air bag, or well, I dunno. I'll look again.
I closed up the under the dash area, knee bolster too, after a month of replacing the brake (or stop) light switch.
Any other ideas, please?
Thank you.
Happy Friday everybody! (Or, we could say, "Happy Sat-Your-Day eve!")
Off to replace the CPS on the 1992 240.
cheers,
Kefir "We Love Fermented Dairy Products" MacDuffed.
--
The Volvo 164: The Mightiest of All Volvo Automobiles in Perpetuity
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posted by
someone claiming to be CB
on
Fri Jul 31 15:48 CST 2015 [ RELATED]
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on the 90 wiring Diagram the only thing with those color wires is a Delay Relay for the Int light.
GRN WHT-BLK BLU-BLK
Wiring Diagrams Volvo 1990 240 FIG 5 PowerDoor/Mirror/Windows (Grid 16-19) page 15 in the PDF A-18
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Hi CB,
Thank you.
My service manuals, save for the Haynes, are all packed away.
I have dial-up modem from the domicile, and can't see teh sites with the Volvo service and other manuals in a media run time.
I'm going to remove it to save the battery. Maybe apply a shorting jumper so the dome light can go on if the door opens.
Thank you.
Mac and Duffed.
--
The Volvo 164: The Mightiest of All Volvo Automobiles in Perpetuity
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I don't think it is related to cruise control but I have never seen one of those?
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