Obd1 scanner will not link or scanmaster

chrisgn6

Member
Joined
Dec 28, 2013
Tried to link my craftsman scanner and also a scanner from my local parts store. No luck. Never been able to get the scanmaster to work since day 1. Is there a fuse or wire I should search for fixing this problem. I would love to get my scanmaster readings on the board so I could get the necessary help that I will be needing. THANKS!
 
Here is a Scanmaster Manual, read page 3 and it will explain on how to connect the wires
 

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I have the manual and followed the instruction. There has to be something else wrong going on.


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You'll just have to try and trace the orange wire from pin E on the aldl connector over to the ECM, to make sure it's still connected.
 
the orange wire behind the aldl may have been cut to connect a scanmaster
could also be a defective ecm ,i have had one that seemed to run fine but no aldl output (that ecm was also missing low fan turn on)

what chip do you have ? its possible the chip code is defective
another thing to note although it shouldnt matter to your problem but since we are on the subject if you have a fast update coded chip a plug in type scantool should read something but wont read properly , with fast update code the only thing that will read properly is a scanmaster
 
most likely a problem in the ecm. this is reasonably common. A bad relay or TCC solenoid can kill the driver chip that handles the datastream.

Bob
 
If I have to get a new ecm, does it need programmed or do I just install the chip out of my old one. I do have Eric's ttchip not installed. Been waiting to get everything up and running correctly before I add any performance parts. THANKS BOB!


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Traced wires, tested for continuity and voltage to the wires that suppose to have power. Pretty much pointed to the ecm being the problem after that.


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Replaced ecm and scanmaster works. Will post numbers later so you members can tell me what is wrong or need to be adjusted. Thanks guys!!


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