Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
MattWtech

T-case control module sleeping

3 posts in this topic

typical friday at work.. nothing to do but diagnose a tough one, anyway i got a 2004 chev avalanche ,5.3 w/ TC. 4wd light is on, no scan tool communicates with it, brick doesnt genysis doesnt mentor doesnt tech 2 doesnt. checked DLC and it has power and ground, selecting switch has power but it wont select anything. also have power to transfer case module, and power going to transfer case from the module... but i think the darn thing is sleeping and the wake up procedure didnt work, anybody have any ideas.. already tried replacing switch and module by the way, and i also checked every single connector for pin continuity, and were good

Share this post


Link to post
Share on other sites

Doesn't GM have something about disconecting the battery to reset communications?

Share this post


Link to post
Share on other sites

i think they do, we tried it and it probably reset, but still wouldnt communicate, we also tried the wakeup procedure, which was a rediculous pull 2 fuses put them back in, i got an idea after i left work about it but i cant remember for sure, power from the module goes through pcm and through cluster, i want to check and see if it lost communication with the cluster, ive heard stories of codes and lights from that but i cant remember the schematics off the top of my head

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • ZachD
      You are paying for it one way or another it is worked in the rental fee or you pay at the road I guess its a matter of preference. Places I go at milacs always had the road pass "included" I think when I rented from up north rental on red I had to buy a pass going out of rogers.   Beacon Harbor it was included  
    • eyeguy 54
      made some spread with mayo and diced up yellow peppers and pepper. Had 2 sandwiches today. Outstanding.  Home from fishing and put some on a couple honey graham crackers......  man oh man !!   good stuff ! ! !   great taste combo ! 
    • eyeguy 54
      Fun day today fishing with Rick G and Jim Uran. Caught a lot of fish and we kept some nice ones for the tummy   Rick got biggest at 12 3/8.  And we got into some neat looking party crappies also. LOL  @Rick G  @Jim Uran   Hopped in the shower as soon as I got home to warm my wet arse up. Sleet and snowy day. Enjoying a glass of Pinot Noir right now and fish fry time Thursday night. THX for the maple syrup Jim ! !  
    • live4chrome
      I went out of fish lake and with my leg,  found a hole just a bit smaller than a man hole, right in the middle of a well traveled and plowed road. I Informed the folks at the high banks about it so hope they marked it. I also found several other holes from old holes widened to around 12". Im done driving for the year. If I had a house out there I would be getting it off ASAP.
    • budboy
      Was wondering the same thing comen up tom. Would like to bring wheel house out but dnt know what its like