Test G: No Communication With The Instrument Cluster Module

G1 - G5:

Normal Operation
Under normal operation the instrument cluster communicates interactively with other electronic modules using the J1850 Standard Corporate Protocol (SCP) communication network. Communication is accomplished through the use of an unshielded, twisted pair cable data bus line, circuits 914 (TN/OG) and 915 (PK/LB).

Possible Causes
^ Central Junction Box (CJB) fuses: 2 (5A), 6 (5A) and 30 (30A)
^ circuit 729 (RD/WH) open or shorted to ground
^ circuit 1003 (GY/YE) open or shorted to ground
^ circuit 16 (RD/LG) open or shorted to ground
^ circuit 57 (BK) open
^ instrument cluster