@yagger is my summary below at all useful?
Thank you so much for your time and effort!

My apologies. I can rebuild engines, I can tune trim cams but I cannot check the right damn bulb :P

It is sorted now and my lights work just fine!

Here's what I learned at least.

1. Check the lamp. Measure ...

Hi again

I tested with another LSM that had a working brightness wheel. Same problem!

It appears I made a mistake when looking at the my original brightness setting. It does work after all so the problem is then outside of the LSM?

Hi, I apologize forv the confusing reply.

The LSM has two wheels. The one controlling exterior light angle works.

The one that controls interior light brightness does not work.

Does this mean that the LSM is at fault?

yagger wrote: 16 Jun 2020, 21:11 Can you change of brightness of back-lights on your cluster (DIM)?

Hi,

I can regulate the lights up and down but interior DIM wheel does nothing!
Is it as simple as replacing the LSM?

Hi,

So my low beams stopped working out of the blue. My volvo is a 2001 2.4T with halogen lights. The high beams work just fine.
I've checked the three fuses in the car. They are all ok. I've switched out the relay and the shunt. Which I think was unecessary.

I measured the voltage over pin 1 ...

Hi,

My cabin fan is acting up. It stays on low unless I force it and the temperature feels a bit off. I am suspicious that it may the the internal temp sensor behind that small grille on the AC unit.

I have had that lose when mounting one of those CD changer bluetooth thingies. I've also had the ...

Changed the thermostat. Volvo deserves some well-earned credit for how easy that is to do on my V70 p2 01 2.4T. 15 minute job.
Having done a lot of work on italian cars I am pleasantly surprised.

OK,

We've done some more debugging.

Antenna
Firstly, we tested with another antenna. Same behavior. Removing the battery resets something and the car starts(it will suffice to just remove the ECU for a while but battery is way simpler).


We've also managed to connect to the ECU. It has no ...

Thanks for the replies.

@jose456891
That guy seems to have the "starts and runs for a second" - problem.
Which is different from what we're experiencing.

Also try to bypass the immobilizer
I've thought about this. For older cars you're shorting out some connector between relay 210 and 211 ...

Hello there,

firstly thanks for the wealth of information I've found here.

On to my problem:

Me and a buddy are fiddling with an v70xc that refuses to start. We cannot connect to the ECU for code reading. (we lack one of those Volvo hardware interfaces. I was under the impression that a super old ...