Bus Bias Level Too High

Test 1 - 3:

Test 4 - 5:

SYMPTOM
BUS BIAS LEVEL TOO HIGH

TEST NOTE
This symptom is diagnosed using the test 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