I am having a problem with my 1997 trans am. First off it is a 97 m6 car, but I am using a 96 lt1 and a4 with a 96 a4 engine and trans harness. My main problem is my oil pressure is reading way past 80 and I can not read the SES light with a scanner; the scanner is not even coming on when it is plugged in. I am thinking the c230 plug inside the car is the problem, particularly pin g;Power feed from engine senor Fuse #10. It is not connected to anything inside the car, the c230 plug inside the car has no wire in pin g. I have no idea where I need to splice the pink wire from the engine harness into the body harness. Any one have a interior wiring diagram for a 1997 trans am; i found a bunch on the engine and trans harness but none on the interior harness.

 

C230 pin G goes to the brake switch pin C. Comes out of the switch on pin D to C230 pin H on a Lt Blu/ Blk wire.

That circuit was not used with a manual tranny.

 

So all it was for on the a4 car was to power the brake switch?

 

It eventually ends up at the PCM for Brake Switch Signal. Maybe for among other things to cut off the cruise control.

 

I thought I recently answered this question on some board somewhere...
Maybe is was one just like it.

 

Thanks guys I figured it out I had a bad connector at the oil sensor and no power was getting to the orange wire where you reed the codes from. So I installed a new connector and put 12v switched power to the orange wire and I now can read my oil pressure and SES light.