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Discussion Starter #1
I'm not sure if this is old news or not. (It certainly is on s40/v50 forum). Just wanted to pass this along in the R forums(hopefully those guys won't get mad <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> )<br><A HREF="http://forums.swedespeed.com/zerothread?id=33590" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=33590</A><p>Just did this in my '06 SR, and it worked. <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <p>BTW, looks like I got 2 DTC's (CCM-climate control, and CEM-central electronics modules) Time to go back to the dealer <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/mad.gif" BORDER="0">
 

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Re: Quick in-car DTC check... (rushin_max)

Yep, known. <p>CEM codes are usually not a big deal... I wouldn't worry about it. I generally have AUM, CEM, UEM, DDM, CCM codes at random times for random things that glitched at some point or other.
 

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Re: Quick in-car DTC check... (rushin_max)

Frankly, this is pretty useless. <p>There are, at any time, so many DTC's set in the computer for so many random and trivial things, that frankly it's not worth going to the dealer for. Especially if you're not under warranty. <p>For instance, the list of DTC's the last time we pulled codes from my car included: voltage low, passenger window module. Well what do you know, window works fine....<p>Many of these are transient and nothing to worry about.
 

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Well, sorry for the old news(in my defense, I did try to search and didn't find anything) <IMG NAME="icon" SRC="http://www.vortexmediagroup.com/images/banghead.gif" BORDER="0"> <p>I have to disagree about this being useless. You're right, at times you get random codes that have no significance. For example, I always used to get DTC's for DDM and PDM when my alarm was triggered, or CEM when a bulb would burn out. <br>But, if it's something more significant like ECM, DEM, TCM, or any other main control modules that affect the performance of your car directly, this trick is quite useful. Even though it won't tell you the exact code, at least you'll know what the problem might be, or what module is responsible if your car doesn't feel right.<p>BTW, reason I'm <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/mad.gif" BORDER="0"> , is b/c I just bought the car last week which supposed to be "certified". Now, that I see those DTC's set, makes me wonder how well they actually checked the car. Plus, I just noticed the right tail-lamp has condensation building up and the rear fog bulb is the wrong size and not even hooked up(maybe that's the CEM dtc) Anyway, I'm going back there this Fri. to get this sorted out. <IMG NAME="icon" SRC="http://www.vortexmediagroup.com/images/banghead.gif" BORDER="0">
 

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Re: Quick in-car DTC check... (rushin_max)

Same story here did it tonight results:<br>DTC's in Vehicle<br>ECM DTC SET<br>CEM DTC SET<br>CCM DTC SET<br>all others are "Checking" or "Ready"<p>Should i goto dealer? i still have warranty
 

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Re: Quick in-car DTC check... (peter_reece2003)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>peter_reece2003</b> »</i></TD></TR><TR><TD CLASS="quote"><br>Should i goto dealer? i still have warranty</TD></TR></TABLE><p>Yep. Why not, you still got warranty. <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> ECM dtc could be read-off w/ most OBDII readers. As for the rest, need to go to the dealer.
 

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Re: Quick in-car DTC check... (rushin_max)

I think I first checked mine a couple of years ago and there were a few codes "set". I've had factory software upgrades, codes cleared, etc. since and I still have codes that appear as "set" (whatever that means). My car and its internal systems are all operating normally. As others have said, this is all meaningless.<p>At most, all your dealer will do is clear any codes in the system. More than likely, the S/A will look at you with that classic, confused Volvo S/A "look" and proceed to do absolutely nothing for you or your car. <p>I don't understand why you think clearing codes should be a concern to a tech performing a CPO inspection. They are checking to see that the car is safe and operating properly.<p>Trygve<br>
 

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Re: Quick in-car DTC check... (RainyS60R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>RainyS60R</b> »</i></TD></TR><TR><TD CLASS="quote"> My car and its internal systems are all operating normally. As others have said, this is all meaningless.<br></TD></TR></TABLE><p>With all these computers these days, you never know if anything is operating normally.<br> I don't understand why people take DTC's so lightly. If there's a DTC, that means something is/was not functioning properly. I had 2 occasions when this trick really helped me out.<br>First time I figured out this trick was when my car went into limp mode, I checked and had ECM dtc set but no check engine light. Got the OBDII reader, pulled out a few misfire codes. Turnes out one of the hose clamps on the intake wasn't tightened causing a vacuum leak. So I tightened the clamp, cleared the code and, saved myself a trip to the dealer.<p>Then, I did the same trick some time later, again dtc set. The car was functioning normally, or at least felt normal to me. This time I didn't have the obdII reader, so I took it to the dealer. Turnes out I had a faulty accelerator pedal, signal too low. So, they had to replace the pedal and the car felt more lively after that.<p>As you can see, this trick is not entirely pointless. If you have DTC set for no reason and you're still under warranty, I strongly suggest you get it checked out. It could be nothing major(like a loose gascap/triggered alarm/ burned out bulb), but better be safe then sorry.
 

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Re: Quick in-car DTC check... (rushin_max)

Automotive hypochondria. <p>If there is a larger problem, it will usually present itself with a warning and another alert, such as a CEL or a DIM message.
 

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Re: Quick in-car DTC check... (rushin_max)

Do you reformat your PC every time Windows has an error? That would be a full time job. Relax and enjoy your new car.<p>Volvo is not going to spend thousands of dollars in labor tracking down every DTC code you find. Perhaps the first couple of times as a good-faith gesture, but that won't continue forever. Who has the time? It's just a car (flame suit on).<p>~ Trygve<br>
 

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Re: Quick in-car DTC check... (rushin_max)

Used my OBDII Pocket SCan this morning "NO CODES".Could these just be old STORED Codes.
 

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Discussion Starter #12
<IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0"> Ok, sorry for dragging on with this subject. Don't want to give the wrong impression that every time I get a DTC set, I go running back to the dealer to get it checked out. If it's nothing major I usually wait till my next service and mention it then. If it's ECM related, then I either try to read it off w/ OBDII reader, or wait couple of weeks for it to clear by-itself. If it doesn't, then I would consider bringing it in. <br> I may be over anxious(hypochondriac), but I have a damn good reason. My previous S40, that I also bought used, was plagued with problems. Now, with that car, I literally had to come back to the dealer every month for something new.<br> First day I bought it, the battery died Then, couple of weeks later my fuel press./temp sensor popped out of the fuel rail leaking gas all over the place, 2 weeks later my windows stopped functioning, and on, and on, and on... every month it would be something new(like the car was PMS'ing or something) <br>So after a year I finally decided, this car is cursed and I need to get rid of it. Hence the new S60R. So far a week, without any problems(knock on wood). I realize it is a used car, so it bound to have SOME problems. I just hope it's not gonna be like my S40. :fingers-crossed:<p><br><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>peter_reece2003</b> »</i></TD></TR><TR><TD CLASS="quote">Used my OBDII Pocket SCan this morning "NO CODES".Could these just be old STORED Codes.</TD></TR></TABLE> <p>Hmm, that's strange. Usually you're able to clear the codes for ECM. If the car's running fine, I would just mention it next time you get your car serviced. <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <p><br>Good day, everyone. Happy Friday!!! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0">
 

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Re: Quick in-car DTC check... (rushin_max)

sounds logical <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 
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