Bus Bias Level Too High

Tests 1 - 3:

Tests 4 - 5:

SYMPTOM
BUS BIAS LEVEL TOO HIGH

POSSIBLE CAUSES
- DRB bus bias too high/low
- CCD bus (+) or bus (-) circuit open
- CCD bus(+)/(-) circuit shorted to ground
- Instrument cluster ground circuit open
- Instrument cluster bus bias level too high/low