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 communication network. With the ignition switch in the START or RUN position, the instrument cluster receives voltage from the smart junction box (SJB) through circuits 489 (PK/BK), and 1266 (RD/YE). With the ignition switch in the OFF position, the instrument cluster receives its keep-alive voltage from the SJB through circuit 1001 (WH/YE). The instrument cluster is grounded through circuit 1205 (BK).

Possible Causes
- fuse(s)
- circuit 489 (PK/BK) open
- circuit 1001 (WH/YE) open
- circuit 1205 (BK) open
- circuit 1266 (RD/YE) open
- instrument cluster