Test G: No Module/Network Communication - No Power To The Diagnostic Tool

PINPOINT TEST G: NO MODULE/NETWORK COMMUNICATION - NO POWER TO THE DIAGNOSTIC TOOL

G1-G4:

G4 Continued:

Normal Operation
Under normal operation the diagnostic tool is connected to the data link connector (DLC) C251 to communicate with the controller area network (CAN), and international standards organization (ISO) 9141 communications networks. If communication cannot be established, the diagnostic tool and the DLC C251 must be checked for damage. If the diagnostic tool and the DLC C251 are OK, circuits 29-RA1 (OG), 91-RA1 (BK/OG) and 31-RA1 (BK) must be checked for an open condition.

Possible Causes
- fuse
- DLC C251
- diagnostic tool
- circuit 29-RA1 (OG) open
- circuit 31-RA1 (BK) open
- circuit 91-RA1 (BK/OG) open