Bus Bias Level Too Low

Test 1 - 3:

Test 4 - 5:

SYMPTOM
BUS BIAS LEVEL TOO LOW

TEST NOTE
This symptom is diagnosed using the test BUS BIAS LEVEL TOO HIGH.

POSSIBLE CAUSES
- CCD Bus (+) or Bus (-) circuit open
- CCD Bus(+)/(-) circuit shorted to ground
- DRB Bus Bias too High/Low
- Instrument cluster bus bias level too High/Low
- Instrument cluster ground circuit open