Question about Oldsmobile 98
Posted by Anonymous on
If your ALDL connector is a 16 pin (looks like an OBD2) but your GM vehicle is 95 or 94 then the only way to scan the codes is with a scanner. http://reddevilriver.com/aldl.html
Posted on May 06, 2014
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Posted on Jan 02, 2017
SOURCE: i want to check obd1
under your dash where the ALDL is located the rectangle plug on the drivers side you take a jumper wire and jump it with the key off from the test terminal to the ground terminal the two upper right plug holes then turn the key on DO NOT START IT!!!!! then the service engine soon light will flash code 12 it will be one flash a short pause then two flashes after another slightly longer pause the code will repeat itself two more times that says the diagnostic syatem is working if there is nothng wrong 12 will repeat itself over and over but if there is a problem it will flash the code 3 times then code 12 3 times and the next code if there is more than 1 code stored then you can look in a haynes manual or manual of the sort and it will tell you which each code is or you can go to an auto parts house and they can hook it up to the scanner for free then tell you what you need
Posted on Aug 02, 2008
Posted on Feb 19, 2009
you have a obd2 it has 16 data link connector you have to use scanner to get codes.now the obd1 system have 12 data link connectors..the top two at far right is where you put jumper wire to retrieve code.
Posted on May 13, 2009
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