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Old 05-23-2013, 01:01 PM   #1
smokeyfan1000
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Default How to differentiate a 1991 240 NON ABS Instrument Cluster from an ABS Inst Cluster

1991 240 sedan, M47 5 spd, 3:31 diff ratio, B230F n/a.

My 1991 NON ABS cluster has a loose male spade on it's passenger side.

The warning lights flicker on/off dimly,somewhat sometimes brightly, but do this very intermittently. Seems colder ambient temps makes it do this more often.

The alternator is charging fine. When I installed VM, I wired the voltmeter separately/not using the OEM VM wiring harness &VM is wired "unto itself", and it shows up to 14.4 volts the alt puts out.

Battery never discharges either and always shows 12.9 volts when checked.

I've decided to try a different Instrument Cluster to see if the loose male spade is the cause. I think it is.

I need to know.............

How can you tell a NON ABS 240 sedan Instrument Cluster *from* an ABS 240 sedan Instrument Cluster when they are "already removed" from the car/s and do not have the car to reference them by?

Are the 1990 through 1993 240 clusters all the same and interchangeable between each other? Or are there differences in wiring pins/spades, making them non-swappable? (other than M47/auto trans speedos.)

Does the ABS 240 Cluster have an/any additional male/female wire spade/s, or any difference in the pin cluster plugs from the NON ABS Inst Cluster?

Any difference in the warning lights? Does the ABS cluster have a specific ABS light that the NON ABS cluster does not have?

Or do both cluster have same/same amount of warning lights, and the one not needed for the NON ABS is just omitted, like the earlier 240 clusters for different markets?

Can one use a ABS cluster in a NONABS 240 ?

TIA guys...

Last edited by smokeyfan1000; 05-23-2013 at 01:25 PM..
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Old 05-23-2013, 02:14 PM   #2
2manyturbos
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1991 was the first year of "Optional" ABS on the 240. I don't think the cluster is any different, ABS vs. non-ABS for 1991. The reason Volvo was able to use the same cluster was they installed a signal converter before the cluster that turned the 48 tooth tone ring signal into the same signal the 12 tooth tone ring generates. That said, any K10042 with the service light reset button coming through the cluster lens should work. The ABS clusters that are definitely different from non-ABS clusters are the 1992-93 clusters. Those read the 48 tooth tone ring signal directly. If you install one in a non-ABS car, they read 1/4 the speed you are actually traveling.

Take a look at figure 6 on this 1991 240 wiring diagram and you will see the converter that changes the tone ring signal into something the speedo understands.

http://www.volvowiringdiagrams.com/v...240%201991.pdf

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Old 05-23-2013, 06:36 PM   #3
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So......all I need is a 1991 240 M47 instrument cluster and it can be ABS or NON ABS....Correct?

Will a 240 auto trans cluster work as long as I swap in the M47's the speedometer? It should I would think, as the earlier ones would

And which tone ring does my 1991 240 M47 have ? 12 or 48 tooth? My speedo is a K10042

Last edited by smokeyfan1000; 05-23-2013 at 06:46 PM..
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Old 05-23-2013, 06:55 PM   #4
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Auto vs. stick has nothing to do with it. Wagon vs. sedan is what determines which speedo is used. The transmission and rear end gearing as no affect on the speedo accuracy since the sender is measuring axle rotation. IOW, the only thing that affects the speedo accuracy is wheel/tire diameter. Since the 1991 ABS system requires a signal converter to work with the earlier speedometer, I have to assume the 91 models got the 48 tooth tone ring. Otherwise, there would be no need for a signal converter. That is the only year Volvo used that converter, AFIK. Art of cleanflametrap should be able to confirm or correct that assumption.
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Old 05-23-2013, 07:11 PM   #5
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OK thanks 2manyturbos. I'm now hunting a good cluster

Last edited by smokeyfan1000; 05-23-2013 at 07:17 PM..
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Old 05-23-2013, 07:37 PM   #6
vvpete
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When I realized how rare my '91 3.1 ABS instrument cluster was I just fixed it. Except for the service reminder reset, that's still broken.

Your circuit board could be cracked or simple connection gone bad. Get out a good magnifying glass and ohm meter.

One of the problems I had was with the speedo input 3-pin connector was bad.
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Old 05-23-2013, 07:53 PM   #7
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The male spade terminal *below the 3 pin and other multi pin plug* is loose and spins in an arc.

I think that's all that is wrong. I'd like to get another cluster *then* attempt to fix my current one. Luckily mine 1991 NON ABS.
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Old 05-23-2013, 08:11 PM   #8
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Quote:
Originally Posted by smokeyfan1000 View Post
The male spade terminal *below the 3 pin and other multi pin plug* is loose and spins in an arc.

I think that's all that is wrong. I'd like to get another cluster *then* attempt to fix my current one. Luckily mine 1991 NON ABS.
You're not following what I said at all. I don't think there are two different versions of the 91 cluster. There is no ABS vs non-ABS 91 cluster. The ABS specific clusters have a completely different speedo number. The 92-93 wagons with ABS use the K39200, the 92-93 sedans use a K40168. I have a 1991 245SE that I think has ABS. I also have the rear axle out of a 1991 244 that was non-ABS. Both cars are at my shop. The next trip there I'm going to take a look at the housing covers and see if they are the same, or, earlier style vs. the aluminum cover used on the 92-93 housings. I'll post back up when I have an answer.
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Old 05-23-2013, 09:11 PM   #9
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I was just stating that I prefer a non ABS 240. The ABS 240s have the brake line distribution block problems I've read.

I really don't care for ABS on a 21 year old car. There's enough gremlins to chase on a 91 240 as is.
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Old 05-23-2013, 09:42 PM   #10
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Got it. With the quote added, I got a different meaning from your post.
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Old 05-23-2013, 09:53 PM   #11
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Quote:
Originally Posted by smokeyfan1000 View Post
I really don't care for ABS on a 21 year old car. There's enough gremlins to chase on a 91 240 as is.
Tell you what, my 245 w/abs and new parts brakes like a Porsche. Never had a problem (yet, 350k mi) better than an '89 245 non-abs w/ all the mods, which I had previously
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Old 05-23-2013, 10:20 PM   #12
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Originally Posted by vvpete View Post
Tell you what, my 245 w/abs and new parts brakes like a Porsche. Never had a problem (yet, 350k mi) better than an '89 245 non-abs w/ all the mods, which I had previously
There are folks that won't buy a car with power windows. You know, all that new fangled technology. You never know when one might quit.
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Old 05-24-2013, 06:35 AM   #13
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Quote:
Originally Posted by smokeyfan1000 View Post
I was just stating that I prefer a non ABS 240. The ABS 240s have the brake line distribution block problems I've read.

I really don't care for ABS on a 21 year old car. There's enough gremlins to chase on a 91 240 as is.
I can confirm for you, Smokeyfan, the 91 has the same cluster whether ABS or non-ABS. And for you 2many, your non-ABS 91 will have the 12-slot tone ring. The difference is an add-on module to pre-scale the ABS tone ring, done under the glove box.

Also, the 91 non-ABS does not have a switch in the brake line distribution block. It is just a manifold. Nothing to go wrong, and very much desired as a replacement for the pressure sensing octopi.
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Old 05-24-2013, 12:59 PM   #14
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Art,

Thanks. That is what I thought I saw when I pulled the diff from the 91 non-ABS car. I only noticed it because it was not what I was expecting. Also, I remembered your statement about the converter being behind the glove box. The harness was pulled from the 91 to convert an 82 242T to LH 2.4. I didn't remember seeing anything unusual on that side of the harness, i.e. converter.
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Old 05-24-2013, 02:12 PM   #15
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Quote:
Originally Posted by cleanflametrap;4593533[COLOR="Blue"
]I can confirm for you, Smokeyfan, the 91 has the same cluster whether ABS or non-ABS.[/COLOR] And for you 2many, your non-ABS 91 will have the 12-slot tone ring. The difference is an add-on module to pre-scale the ABS tone ring, done under the glove box.

Also, the 91 non-ABS does not have a switch in the brake line distribution block. It is just a manifold. Nothing to go wrong, and very much desired as a replacement for the pressure sensing octopi.
OK good to know.

ALSO....Do you happen to know if one can put a 1991 circuit board onto the 1986-1989 240 sedan instrument cluster *housing* and also use the 1991 soot black style painted gauges/speedo ? Would that work? Other than not have the service light reset button in lower right corner like the 91?

Reason for this swap being keeping the 1991 style soot faced gauges /speedo and putting them in the 1986-1989 cluster that has the *semi gloss background*. This for contrast. (just wondering how good/bad it'd look)

Just wondering if possible to swap the 1991 gauges/speedo and 1991 circuit board onto/into the earlier cluster housing, for a different look.
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Old 05-24-2013, 03:13 PM   #16
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Quote:
Originally Posted by smokeyfan1000 View Post
ALSO....Do you happen to know if one can put a 1991 circuit board onto the 1986-1989 240 sedan instrument cluster *housing* and also use the 1991 soot black style painted gauges/speedo ? Would that work? Other than not have the service light reset button in lower right corner like the 91?
No idea off hand. If you have to know before you try it, maybe PM Dave Samuels.
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Old 05-24-2013, 03:28 PM   #17
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Originally Posted by 2manyturbos View Post
Art,

Thanks. That is what I thought I saw when I pulled the diff from the 91 non-ABS car. I only noticed it because it was not what I was expecting. Also, I remembered your statement about the converter being behind the glove box. The harness was pulled from the 91 to convert an 82 242T to LH 2.4. I didn't remember seeing anything unusual on that side of the harness, i.e. converter.
Right. Just to be clear, (because I had to read the above three times before it sunk in), the 91 ABS car has the converter under the glove box (with the ABS controller). As many folks that swap in later axles into older 240s, this little converter would be something to grab in the yards. But the non-ABS 240 doesn't need it.

However, my info comes from having one of each in the family, so that is only two examples from production backed up by the parts microfiche and green book WDM. Too many times I've been wrong making assumptions without checking the chassis numbers in the fiche. Like, for instance, the level-sensed triangular brake fluid reservoir in the 91 non-ABS looks like the ABS one, but isn't. So, if say, sometime during MY91, Volvo decided to make all cars with the newer differential with the 48-slot ring, all they would have needed to do is add that converter, ABS or not. And slip a message to the dealerships, I guess.
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Old 05-24-2013, 03:42 PM   #18
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^^ I knew you would understand what I was getting at. That is what made me doubt the statement I made way up in the thread about smokie's car probably having a 48 tooth tone ring. Once I wrote that, my memory was kickin' in, I didn't remember seeing the converter in the non-ABS 1991 wiring harness and was thinking, they must have used both a 12 tooth diff and a 48 tooth diff in 91, depending on the braking system. Don't you just love the way Volvo engineers solved problems? That said, now you have another example to go by.
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Old 05-24-2013, 03:43 PM   #19
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Originally Posted by cleanflametrap View Post
No idea off hand. If you have to know before you try it, maybe PM Dave Samuels.
Might just investigate it a little. I think I have a 86-89 cluster. If I haven't already sold it.....

And Thanks! for the good info cleanflametrap & 2manyturbos. Much appreciated.

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Old 05-26-2013, 11:14 PM   #20
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Will a 1990 240 sedan Instrument cluster work on my 1991? As long as from a sedan?

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Old 05-27-2013, 12:39 PM   #21
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Will a 1990 240 sedan Instrument cluster work on my 1991? As long as from a sedan?
Yes, it is the same cluster. SLUMLORD has one he will sell. He's on vacation for about a week. It is tested, know to work.
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Old 05-27-2013, 01:25 PM   #22
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Yes, it is the same cluster. SLUMLORD has one he will sell. He's on vacation for about a week. It is tested, know to work.
Thanks 2manyturbos. Did you ever find one in your parts stash?
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Old 05-27-2013, 01:40 PM   #23
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I am sure I don't have one.
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Old 05-27-2013, 01:49 PM   #24
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Ok I think I have found a 1990 Instrumet cluster for 240 sedan...... I should know later today.

My worry is that the printed circuit board may have changed if the warning light locations were changed between 90 & 91

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Old 05-27-2013, 01:50 PM   #25
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Originally Posted by smokeyfan1000 View Post
Will a 1990 240 sedan Instrument cluster work on my 1991? As long as from a sedan?
The only difference is the glow plug light was sacrificed to make room for the check engine light as the 91's ABS light moved where the 90's CEL was. Can't imagine why it would not work without any issue at all.
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