My Daughters s60 started having electrical issues and I am trying to avoid costly diagnostic bills . The dash cluster started going out intermintanly and no gauges working - so i thought dash cluster was the problem. Now dash cluster has no working gauges , but turn signals work on the outside of the car. The drivers power seat does not work along with power windows and key FOB . Thought maybe the CEM - called XeMODex - telling me that those are Low speed network issues - just more confused than ever . Dealer want $185 an hour to diagnose
Can anyone give me some insight to help locate the problem , any help greatly appreciated

Thanks Will

 

I did pull the outside cover to the CEM and checked the 2 connectors for corrosion , all looked good. Car starts and drives fine besides these issues . Just not sure how dash cluster and the other problems are related

Thanks Will

 

Sounds like contact issues based solely on what you said (intermittent, etc). I'd start with cleaning all contacts & pins on connectors & see if it makes a difference. Corrosion wreaks havoc on electrical systems (obviously), check all major grounds too (especially CEM, body grounds, engine, transmission, etc). That's an often neglected remedy for a lot of strange electrical issues.

 

Q: All of this happened at the same time? Dash, windows, seats, etc?