Cruise control and other problems (also serves as an "I'm new" post) - Page 2
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Page 2 of 4 FirstFirst 1 2 3 4 LastLast
Results 16 to 30 of 59
2004-2007 Cadillac CTS-V General Discussion Discussion, Cruise control and other problems (also serves as an "I'm new" post) in Cadillac CTS-V Series Forum - 2004 - 2007; Well I cleaned the PCM connectors and had the CEL cleared to see if it'll come back on. In the ...
  1. #16
    Destram's Avatar
    Destram is offline Cadillac Owners Member
    Automobile(s): 2004 CTS-V
    Join Date
    Mar 2013
    Location
    Florence, AL
    Age
    24
    Posts
    39

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    Well I cleaned the PCM connectors and had the CEL cleared to see if it'll come back on. In the trip back from the shop, the light didn't come back on, but the cruise control still doesn't work, which leads me to believe the light will come back on. If that's the case, the cleaning didn't help it, so am I to assume the dealership is right and I do need a new PCM?

  2. #17
    darkman's Avatar
    darkman is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V
    Join Date
    Nov 2005
    Location
    Spring, Texas
    Posts
    6,798

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    As discussed in the DTC0833 pdf, the CEL does not set until 7 trips above 24 mph and back to zero mph without a report of clutch transition (from the clutch position switch). So you could see if it is going to set again with some driving.

  3. #18
    izcain's Avatar
    izcain is offline Cadillac Owners Fanatic
    Automobile(s): 05 V
    Join Date
    Jan 2013
    Location
    Port Angeles
    Posts
    167

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    Did you perform the pin out on the ecm pin to the clutch switch to make sure there is continuity?

  4. #19
    Destram's Avatar
    Destram is offline Cadillac Owners Member
    Automobile(s): 2004 CTS-V
    Join Date
    Mar 2013
    Location
    Florence, AL
    Age
    24
    Posts
    39

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    No, I didn't do that. I have limited tools (just a set of sockets, screwdrivers, and wrenches). I've never worked on my own cars. I figure I'm in college, so it's time to learn, but being in college, money is limited to run out and buy tools to do everything.

  5. #20
    izcain's Avatar
    izcain is offline Cadillac Owners Fanatic
    Automobile(s): 05 V
    Join Date
    Jan 2013
    Location
    Port Angeles
    Posts
    167

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    You need an ohm meter and some wire. You can get a cheap meter from wal mart even to get you by

  6. #21
    Destram's Avatar
    Destram is offline Cadillac Owners Member
    Automobile(s): 2004 CTS-V
    Join Date
    Mar 2013
    Location
    Florence, AL
    Age
    24
    Posts
    39

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    The check engine light came back on tonight.

    It looks like I should pick up a scan tool and a DMM. I know I can get the DMM pretty cheap, but I'm not sure which scan tool to get. Do you have any suggestions for which scan tool I should get that will let me run the tests in the pdf (such as "use the scan tool to monitor the clutch pedal position switch parameter" and so forth)?

    I'm going to go pick up the DMM tomorrow, but I'll probably have to come back to this thread asking for help. I have the DTC PO833 pdf, but some of the things it wants me to do are a in a foreign language for me since I'm not the most car savvy person yet.

  7. #22
    izcain's Avatar
    izcain is offline Cadillac Owners Fanatic
    Automobile(s): 05 V
    Join Date
    Jan 2013
    Location
    Port Angeles
    Posts
    167

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    In order to look at live data you are going to need more then a code reader. Hence it will cost a bit of money to have. Big difference between a scan tool and a code reader.

  8. #23
    Destram's Avatar
    Destram is offline Cadillac Owners Member
    Automobile(s): 2004 CTS-V
    Join Date
    Mar 2013
    Location
    Florence, AL
    Age
    24
    Posts
    39

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    I picked up a DMM today. I'm looking at this scan tool: http://www.ebay.com/itm/230946308690...84.m1423.l2649

    That will do what I need, right? If so, I'm going to order it, and when it comes in, I'll go through the tests in the pdf and report back here. If it ends up saying I need to replace the PCM anyway like the dealership said, at least I'll have some new tools I'll get to use from now on.

    Oh, off topic, but I picked up a better jack today, too. The one that comes with the car sucks haha.

  9. #24
    darkman's Avatar
    darkman is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V
    Join Date
    Nov 2005
    Location
    Spring, Texas
    Posts
    6,798

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    Jacks are for raising and lowering the car, but don't ever crawl under a car held only by a jack or even jacks. Jacks can and will fail, even if relatively new. For working under the car get either jack stands (not expensive and easy to store) or Rhino ramps (still cheap but require more storage room).

    The scanner you need to perform the tests in the PDFs is a GM Tech II Scanner and will cost several hundred dollars. If you look for these, be cautious - there are knock-offs in the market place (have "TechII in their name") that are not the same thing.

  10. #25
    Destram's Avatar
    Destram is offline Cadillac Owners Member
    Automobile(s): 2004 CTS-V
    Join Date
    Mar 2013
    Location
    Florence, AL
    Age
    24
    Posts
    39

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    Oh yeah, I have jack stands. I was just saying the jack that came with the car is a pain to use, so I bought a better one so I can jack it up faster.

    As for the scanner, I don't have several hundred dollars to spend on one (a quick search on eBay showed one up to nearly $700). So while it may not be as good as the one you mentioned, are you saying the one I linked to in my previous post will not perform the tests I need to do? If so, then I won't be able to perform the tests, and that leaves me back at the beginning where all I have to go off of is what the dealership said (PCM needs replacing).

  11. #26
    izcain's Avatar
    izcain is offline Cadillac Owners Fanatic
    Automobile(s): 05 V
    Join Date
    Jan 2013
    Location
    Port Angeles
    Posts
    167

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    You just need a scan tool that will show the right information which most any scan tool that will show live data should show the clutch switch. I am unfamiliar with that one you are looking at but if it does as the description advertises it should show you.

  12. #27
    Destram's Avatar
    Destram is offline Cadillac Owners Member
    Automobile(s): 2004 CTS-V
    Join Date
    Mar 2013
    Location
    Florence, AL
    Age
    24
    Posts
    39

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    The one I linked to is one of the brands Auto Zone sells. I saw it when I was in the store the other day, which is the only reason I searched for it on eBay because I'm not familiar with any brands.

    Thanks for the comments.

  13. #28
    darkman's Avatar
    darkman is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V
    Join Date
    Nov 2005
    Location
    Spring, Texas
    Posts
    6,798

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    Quote Originally Posted by Destram View Post
    Oh yeah, I have jack stands. I was just saying the jack that came with the car is a pain to use, so I bought a better one so I can jack it up faster.

    As for the scanner, I don't have several hundred dollars to spend on one (a quick search on eBay showed one up to nearly $700). So while it may not be as good as the one you mentioned, are you saying the one I linked to in my previous post will not perform the tests I need to do? If so, then I won't be able to perform the tests, and that leaves me back at the beginning where all I have to go off of is what the dealership said (PCM needs replacing).
    Most of us here are in the same boat as you are in that very few of us own a GM TechII scanner. Many of us own the type of scanner at which you were looking, which is good for finding out what specific code is causing a CEL and for clearing those same codes to see if they reset. However, GM dealers are not the only shops that have GM TechII scanners and the same troubleshooting charts. So you could look elsewhere in terms of a shop. I generally rely on my dealer for the kind of probem you are having, but I trust my dealer not to "throw parts" at a problem and actually run all the test.

    In your case, based on my reading of the troubleshooting procedure, it is clear that the two possible defective components were the clutch position switch and the PCM. However, it also appears likely that the dealer should have found the clutch position switch to be "good" if the real issue is the PCM. The fact that the dealer replaced the clutch position switch makes me suspect that thery are not going through the trouble shooting chart eliminating the other possible causes (bad wiring, shorts, etc.) that would remain after the clutch position switch was changed. I would at least get another opinion before paying big bucks for a PCM, especially since the car is still running.

  14. #29
    Destram's Avatar
    Destram is offline Cadillac Owners Member
    Automobile(s): 2004 CTS-V
    Join Date
    Mar 2013
    Location
    Florence, AL
    Age
    24
    Posts
    39

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    I just ordered the scan tool, and it should be here by next Tuesday. When it gets here, I'll go through the the tests. If I get to a part I don't understand, I'll come back here. You guys are more than helpful, and I appreciate it. It's good to be able to ask for help from people who have no reason to lie to me like the dealership does.

  15. #30
    Destram's Avatar
    Destram is offline Cadillac Owners Member
    Automobile(s): 2004 CTS-V
    Join Date
    Mar 2013
    Location
    Florence, AL
    Age
    24
    Posts
    39

    Re: Cruise control and other problems (also serves as an "I'm new" post)

    Ok, my scan tool came in today, and I went outside to try and do some of these tests, and I was reminded how little I know. Any help would be appreciated.

    Step 4 in the PDF says "Is the engine ignition 1 fuse open?" Under the hood, there is only one fuse that says anything about ign. I believe it says ign mod maf or something like that. By open, what does it mean? I pulled the fuse, and it wasn't blown. There is a relay that says ign 1 micro relay, I think.

    I moved to step 5 where it says, "Using a DMM, measure voltage at the engine ignition 1 fuse in the underhood fuse block" and then it asks if the DMM indicates the specified value, which is listed as B+. I don't know what to do here. I pulled the fuse and put my DMM leads where the fuse goes and my DMM read 1. This is my first time using a DMM like this; I got that reading with the DMM set to 200m, 2, and 20, I believe. I don't know what setting I was supposed to have it on.

    I didn't go past this step because I wasn't sure if I even did it right, and, if I did do it right, if I should move on to step 6 or step 12. I don't know what it means when it says the value should be B+.

    Sorry for the questions, but I'm trying to make sure I know what the problem is before I spend $400+ on a PCM.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting