Express & G-Series Vans Offered in both a full size van, or a large box truck, the Express is the modern GM workhorse

Chevrolet Express
Platform: GMT Van

2001 GMC Savana 3500 obd question

Thread Tools
 
Search this Thread
 
Old January 1st, 2015, 1:53 PM
  #1  
CF Beginner
Thread Starter
 
jethat's Avatar
 
Join Date: Jun 2013
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default 2001 GMC Savana 3500 obd question

My 1 ton Savana has a unique OBD system. My generic OBD 2 scan tool and the ones at parts stores will not pull codes! My brother inlaws expensive snap on scan tool will. I've read 1 tons in some years were an obd 1 1/2 or something but there is very little information about it. Wondering if anyone has experiance with it. I'm tired of chasing down my brother inlaw every time I need codes (with this van I need them pulled a couple of times a year at least) I'd like to get one that works with it!
Old January 1st, 2015, 4:28 PM
  #2  
Super Moderator
 
tech2's Avatar
 
Join Date: Mar 2011
Posts: 9,169
Received 507 Likes on 467 Posts
Default

what scan tool are you using? What modules are you trying to pull codes from. cheap code readers will only pull "P" or powertrain codes not "U" undefined, B body, C chassis codes.


if you want to retrieve these codes; get your wallet out.
Old January 2nd, 2015, 2:34 PM
  #3  
CF Beginner
Thread Starter
 
jethat's Avatar
 
Join Date: Jun 2013
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

I have a cheap Acutron or something like that. I wont pull anything from that van lights up attempts to scan and comes back with an incompatible message. Other cheap scanners have the same problem. Its the p codes I want. I get nothing..
Old January 2nd, 2015, 7:23 PM
  #4  
Super Moderator
 
tech2's Avatar
 
Join Date: Mar 2011
Posts: 9,169
Received 507 Likes on 467 Posts
Default

if the scan tool is powering up there must be power on the orange wire/pin 16 of the dlc which powers the scan tool. if there is no power at pin 16 check the pwr aux fuse 7 in the I/p fuse panel.


as far as I know this vehicle is obd2 compliant. I know Nissan vehicles from 96-2000 had both odb1 and ob2 connectors as part of a grace period as they were not fully obd2 ready.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Chevrolet Forum News
News, Concepts, SEMA
0
July 15th, 2014 4:48 PM
Mutumbo
Express & G-Series Vans
1
December 12th, 2013 2:19 AM
Chevrolet Forum News
News, Concepts, SEMA
0
January 21st, 2013 7:18 AM
tcr1016
Express & G-Series Vans
0
July 23rd, 2011 9:43 PM
russellhall63
Express & G-Series Vans
0
February 13th, 2011 1:53 PM



Quick Reply: 2001 GMC Savana 3500 obd question



All times are GMT -5. The time now is 8:32 PM.