Test A: No Communication With The Instrument Cluster

PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT CLUSTER

A1-A2:

A2 Continued:

Normal Operation
Under normal operation the instrument cluster communicates interactively with other electronic modules using the communication network. With the ignition switch in the START/RUN position, the instrument cluster receives power from circuit 489 (PK/BK). When in the RUN/ACC position, power is received from circuit 295 (LB/PK). With the ignition switch is in the OFF position, the instrument cluster receives its keep-alive power from circuit 3049 (BK/LG). The instrument cluster grounding is accomplished through circuit 1203 (BK/LB) and the bulb grounding is accomplished through circuit 1205 (BK).

Possible Causes
- circuit 295 (LB/PK) open
- circuit 489 (PK/BK) open
- circuit 1203 (BK/LB) open
- circuit 1205 (BK) open
- circuit 3049 (BK/LG) open