misa

S,v70 instrument cluster into 850?

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I found and installed s,v70 cluster into my 850 today.

Everything works....but SRS light won't turn on with key in posII along with all other little lights.
I thought...ok....burnt bulb....replaced the bulb and it still won't come on.
Checked for SRS codes and got code SRS-127(SRS warning lamp OC or SC to ground).

Looks like somebody tried to mask the problem with SRS(deployed airbags or something).

So....my question is.....can this code prevent the airbags from functioning?
If it does....i'll remove the cluster(again) and take it to specialist to solve this problem.

If it doesn't affect SRS system functionality...i'll leave it alone...for now(untill i wold have some extra time).

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Edited by misa
adding more pics

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Hmm... that's odd. I don't think it will affect the functionality of the airbags, but I can't say for sure.

Looks like you may need to check the wiring diagrams to ensure that the signal wires for the SRS light are in the same terminals on the car the cluster came from and your car. If they're the same, it's an issue within the cluster, which is probably repairable.

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I put back the original cluster until i figure out how to solve the issue with SRS code for warning light i'm getting with s,v70 cluster.

I'm not risking to drive the car with possible disabled SRS system.

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It wont disable srs. 

think of it this way does a check engine light mean your engine dosent run? (well most of the time LOL)

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39 minutes ago, MattyXXL said:

It wont disable srs. 

think of it this way does a check engine light mean your engine dosent run? (well most of the time LOL)

Well....when check engine light is on engine management will not go in closed loop.

Seriously...the code isn't stored in the cluster.It's stored in SRS module.

All data i read says that when there is a code stored in SRS module,airbag system will be disabled....except on VW cars.

The other example...when battery light burns out or if you remove it,the alternator will not charge the battery...there will be no output from alternator.

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I had a srs light on in my 96 for years cause the dash pad was pulled and the car was started because it had to be moved. Air bags still went off in a front end.

But do you really trust 22 year old air bags anyway

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Pinout on a connector B is totally different for SRS light on 70 series cluster.That's why it won't appear on bulb check and that's why it stored a code in SRS module.

I discovered that today when i looked at wiring diagrams.

According to Volvo....if any code is stored in SRS module SRS system is disabled.

Yes...i do trust them since i bought the car new from the factory with special order.

I'll report back if i manage to make it work.

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Ah, so it would have to be re-pinned to work properly. Assuming it's just the SRS light that wasn't working, that should be the only thing out of place, so it's an easy job.

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Yes...just SRS warning light.

The signal from crash sensor is on the same pin B3....but 70 series cluster use additional B5 and B15 pin for SRS light which are not used on 850 cluster.

I'll take wiring diagrams,i allready printed ,to my car electician to see what he can say about it.

If he can make SRS light to work on bulb check and if SRS system doesn't show a code for it after re-pinning....i'll install the cluster.

Otherwise i'll sell it and buy odometer gears for original cluster.

Edited by misa
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