No Bus Bias

Tests 1 - 4:

Tests 5 - 9:

Tests 10 - 12:

SYMPTOM
NO BUS BIAS

POSSIBLE CAUSES
- Test fail due to ignition OFF
- Fused ignition switch output circuit open
- BCM ground circuit open
- Fused B(+) voltage low
- DRB or DRB Cable failure
- CCD bus (+) circuit open
- CCD bus (-) circuit open
- PCM CCD bus resistance failure
- BCM CCD bus resistance failure
- BCM Ground faulty