I found it and it is the round 38 pin, I heard that you can jump certain pins and the Check Engine Light will flash with code, does anyone know this procedure ? I would try this before chasing down a code reader

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Jerry

2004 SL500 Black 55K Miles
2002 s500 Black 90K Miles
1986 300E Gold 233K Miles
1966 Twin Cessna 320D
1989 Jeep Cherokee 233K Miles
1994 Ford Van E150 399K Miles