Results 1 to 3 of 3

Thread: Will not connect pcm/ecm/tcm

  1. #1
    Junior Member
    Join Date
    Nov 2010
    Posts
    26

    Default Will not connect pcm/ecm/tcm

    Trying to load my pcm calibration for the first time and will not connect. This is my first time using this what am I doing wrong? I link the cable as in put in serial number and what not under the registration.

  2. #2
    Lifetime Member
    Join Date
    Jul 2004
    Posts
    640

    Default

    Well, the first thing you should do is try to read the current calibration. If the cigarette lighter fuse is blown you will likely see this problem. Does the V2 light up when plugged into the car and not the computer?

    Ira

  3. #3
    Junior Member
    Join Date
    Nov 2010
    Posts
    26

    Default

    Got figured out was a mess up in my wiring of the harness.

Similar Threads

  1. Can't connect to LB7 ecm
    By madmatt in forum Duramax LB7
    Replies: 4
    Last Post: May 5th, 2011, 01:31 AM
  2. Cannot connect to lb7 ecm but can tcm
    By blewgrassmotorsports in forum Duramax LB7
    Replies: 7
    Last Post: February 11th, 2011, 04:04 PM
  3. HELP, EFI live cannot detect pcm/ecm/tcm
    By bigblackdiesel in forum Duramax LB7
    Replies: 8
    Last Post: June 3rd, 2010, 03:29 PM
  4. cannot tune or connect to TCM in 03 lb7
    By fast03 in forum Allison 5 & 6 Speed
    Replies: 1
    Last Post: August 26th, 2009, 03:23 PM
  5. ECM, TCM, PCM & BCM Issues Who's the Expert
    By MN C5 in forum General (Petrol, Gas, Ethanol)
    Replies: 3
    Last Post: December 7th, 2008, 01:30 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •