Seville V8-300 4.9L (1991)
CCDIC.
NOTES ON FAULT TREE:
1.
This step checks to see if there is an open in the data line between the IPC and the ALDL. The IPC should display all zeros after crank when the
data line is grounded.
2.
This step checks to see if an open exists between the ALDL and the CCDIC.
3.
If the ALDL cover is not providing a good jumper between pin L and M, this will provide an open in the data line circuit. If the jumper is good,
the data line to the CCDIC is complete, and the problem must be with the CCDIC.