Bus Bias Level Too Low

Test 1 - 3:

Test 4 - 7:

Test 8 - 12:

Test 13 - 16:

SYMPTOM
BUS BIAS LEVEL TOO LOW

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

POSSIBLE CAUSES
- DRB/bias out of range
- CCD bus(+) CKT bias open
- CCD bus(-) CKT bias open
- CCD bus (+) CKT short/ground
- CCD bus (-) CKT short/ground
- CCD instrument cluster ground CKT open (CAV 4)
- CCD instrument cluster ground CKT open (CAV 5)
- Instrument cluster bus (+) CKT short/ground