2004 XC90 - ECM DTC SET

[jbarrow8081]

Good Morning All,

I have a 2004 xc90 with about 135,000 miles. My check engine light came on and I checked the codes quickly and found that the ECM DTC seems to be the culpret. I am an AVERAGE mechanic at best but I am wondering does this typically mean the entire ECM module needs to be replaced or is this normally something else. I am guessing the answer is that it could be anything and I should have a proper mechanic look at it. I am just trying to get more information before I go in. Any suggestions/thoughts are appreciated.

Thanks!

Joe

[ggleavitt]

ECM DTC is broad enough to warranty a separate topic on it's own but the first thing you might try is to get any reasonable OBD reader on the car and see if it reports a more specific (like a P-something) code. Then you can try and correlate that code to a Volvo code via another thread like http://forums.swedespeed.com/showthread ... rsion-List (not my link, just passing on, may not be 100% accurate but close enough).

To read the Volvo code you need a DICE and VIDA (can look "VIDA/DICE" up if you want, lot of info for what it does) although I am aware of other more advanced OBD readers that can display these as well.

Good luck!

[abscate]

As you can tell from my sig, ECU problems are rarer than henways teeth.

Most ECM fault codes refer to a component fault detected by the ECU, Not an actual ECU problem