1993 Volvo 240. SRS light is on all the time. Read FAQ about codes. Opened the OBD 1 box, inserted probe into terminal 5. No blinking LED. Looked into the 6 terminals and discovered that only 2 and 6 have receptacles for the probe. The others are open all the way through. It appears that only 2 and 6 are wired for diagnosing something. So, I put probe into terminal 6 and got a 2-2-4 code. Put it into 2 and got a 1-2-1 code. Based on this information, does it appear that my OBD1 is not complete, i.e. it doesn't have a mini-receptable in each of the 6 terminal holes? And, what do the codes mean for terminals 2 and 6? Any insight as to what I have here is much appreciated! Daryl
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