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 other electronic modules using the controller area network (CAN) and hardwired circuitry. With the ignition switch in the START or RUN position, the instrument cluster receives voltage from the central junction box (CJB) through circuit 1044 (WH/YE). When the ignition switch is in the RUN or ACC position, voltage is received from the CJB through circuit 295 (LB/PK). With the ignition switch in the OFF position, the instrument cluster receives its keep-alive voltage from the CJB through circuit 729 (RD/WH). The instrument cluster grounding is through circuit 938 (BK/LG) and circuit 57 (BK).

Possible Causes
- fuse(s)
- circuit 57 (BK) open
- circuit 295 (LB/PK) open
- circuit 729 (RD/WH) open
- circuit 938 (BK/LG) open
- circuit 1044 (WH/YE) open