Question about Saturn SC2

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Diagnostic scanner won't read the assembly line data link

2000 Saturn SC, DOHC, manual transmission. Having problems with starting, lots of possibilities. Tried to narrow down using a diagnostic scanner. However the scanner says "not connected". The chiltons manual I have only shows terminal diagram (ALDL) for 1995 and earlier. Even though the manual is for 1991-2002. How can I verify the number and location of pins for the ALDL. We went to junk yard to pull, but all the ones we found had 7 pins and mine only has 4, They all had a blue wire, but mine did not. We are thinking that mine has been disconnected, but we can't find a disconnected wire. Any ideas??

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Pin # 16 is your power and there is a fuse for it in the fuse panel on the passenger side of the console near the passengers left foot also in there is the fuel pump relay and its fuse jsut so u know.

Posted on Oct 27, 2008

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If there is water ingress into the ecu(engine control unit) the scanner usually will not be able to read it and causes the problems you are having

Posted on Oct 27, 2008

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2 Answers

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Saturn


Open the hood if it says efiohc or single cam on the valve cover then it is a sc1 if it says dohc or twin cam than it is an sc2

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