01 S80 2.9 non turbo Am getting engine system svc required in the message center orange triangle It comes on at random may stay on couple hours and go back off Then back on No codes pull up Do you have ant thoughts as where to look THX

 

I will bet it is one of the codes the aftermarket scanners cannot read.
Have you tried the cheater way to see if there is a code in the ECM?

 

what is the cheater way? I talked to volvo and they said sounds like low voltage. Carried it to 3 different places. The first one said the battery needed to be replaced. The second one said there were no problems with battery or chargeing system. The third one said the alternator was putting out 12.5volts and the battery was low on account of it. We have a rebuilder in town said for me to take it off and they would check it and rebuild it for 75.00 if needed. Would not the light stay on all the time if it is in the altinator. The light is off this morning after being on all day yesterday

 

I was getting an elec. system service required message in my 1999. It would come on and then go off and then come on again. I traced it to the alternator. I took mine in for a rebuild and it was bad. I think the power steering pump was leaking on it. I get it back tomorrow so hopefully the message will stay off.

 

Well Some one convinced me it was the battery so I replaced it just now Put a yocam cca 650 ca 800 retail 130.00 cost 89.95. Hope this fixes it.

 

Well was the message an electrical system service or engine system service?

The cheater was is press and hold the read button. While holding it turn the rear foglights on and off 3 times quick. In the window it will say checking for DTC stored in the car. Then it should say DTC'S stored in car. Press the read button to see what modules have codes stored.

 

engine system svc

 

sorry but what is the read button?

 

The button on the end of the turn signal stalk.

 

just checked it went through a lot of fuctions abs dim etc no codes i could find

 

the battery checked out at 400 cca instead of 650

 

Any in the ECM?

 

none that i could find

 

If it was the battery would the code still be there or would it have cleared when I put the new baTTERY IN

 

It might have been cleared.

 

ok new battery as called for no codes stored I can find drove about 150 miles and message is back on

 

tech when I get to the different depts in the will the codes come up by them selfs or do I have to do something?

 

tech just checked power steerting fluid it was very very low filled it with fluid and the light went out on its on is there a sensor in the ps bowl to let you know when its low?

 

No sensor on the bottle.
When you go through the systems it only tells you what systems have codes.

 

well must not have any codes sure is strange message went out when I added fluid will let you know if it comes back on thx