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

    • Big A
      Don't beat yourself up over it at all. I moved several times and you still caught more than I did. Looking forward to this weekend's weather, will not even need a shelter to check depths and move around..... Fingers crossed, I haven't found fish all year. Sure am amazed at the wheelhouses though, absolutely mind numbing the #'s...
    • Mitch K
      Fished Cannon lake this evening. I bounced around from 12-5ft of water and started to mark fish in 8ft so I set up there until dark. I saw a bunch of fish come in for a look but not one nibble. Tried every color and style spoon and jig I had but nothing. 
    • Whiskerbent
      Best thing you can do if you won't be around is to put the house on fresh ice, don't drill any holes, and put it on blocks.  When people get into trouble is if it gets windy and they have open holes under the house, that rain starts blowing around on top of the ice, and starts swirling down into the holes under the house....that swirling water EATS ice, and can sink a house pretty quick.     As as far as the ice on the lakes, if you have 14-15 inches of good ice like most places around, you'll have no worries if you do what is posted above.
    • Rick G
      Look at this piggy... had a hard time getting it up the hole
    • Rick G
      Ugly man, pretty fish :-)