Normal Operation
The Instrument Panel Cluster (IPC) receives RUN/START and keep-alive voltages from the Smart Junction Box (SJB). The IPC sets DTC U300A:62 in continuous memory and on-demand if the RUN/START input, circuit is open or if the SJB fuse 29 (5A) has failed.
This pinpoint test is intended to diagnose the following:
- Fuse(s)
- Wiring, terminals or connectors
- IPC