Test A: No Communication With the Instrument Cluster

PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT CLUSTER

A1-A2:

Normal Operation
The instrument cluster communicates interactively with the diagnostic tool and other electronic modules using the controller area network (CAN). With the ignition switch in the START or RUN position, the instrument cluster receives voltage from the central junction box (CJB) fuse 45 (10A) through circuit 640 (RD/YE). When the ignition switch is in the RUN or ACC position, voltage is received from CJB fuse 33 (15A) through circuit 1002 (BK/PK). With the ignition switch in the OFF position, the instrument cluster receives its keep-alive voltage from CJB fuse 2 (10A) through circuit 3049 (BK/LG). The instrument cluster grounding is through circuit 676 (PK/OG) and circuit 57 (BK).

Possible Causes
- fuse(s)
- circuit 57 (BK) open
- circuit 640 (RD/YE) open
- circuit 676 (PK/OG) open
- circuit 1002 (BK/PK) open
- circuit 3049 (BK/LG) open