Selecting System Level

Following trouble code display, first available system will be displayed (i.e., PCM?). When selecting a system to test, any of following actions may be taken to control display:

1. Depressing HI (fan up) button on CCC will select displayed system for testing (i.e., PCM DATA, PCM INPUTS, PCM OUTPUTS, etc.). See Figure .
2. Depressing LO (fan down) button on CCC will display next available system selection (i.e., IPC?, ACP? or SIR?). This allows display to be cycled through all system choices. This list of systems can be repeated following end of system list.
3. Depressing OFF button on CCC will stop system selection process and return display to beginning of PCM trouble code sequence.