CCD Bus Shorted to 5 Volts

Tests 1 - 2:

Tests 3 - 5:

SYMPTOM
CCD BUS SHORT TO 5-VOLTS

POSSIBLE CAUSES
- Continuity between bus(+) or (-) and 5 volt supply circuits
- PCM 5 volts
- Bus (+) or bus (-) circuit shorted to voltage
- Bus system module/component internally
- DRB OR DRB cable