Operation CHARM: Car repair manuals for everyone.

Bus Bias Level Too High

Tests 1 - 3:




Tests 4 - 8:




Tests 9 - 11:




SYMPTOM
BUS BIAS LEVEL TOO HIGH

POSSIBLE CAUSES
- DRB or DRB cable
- Powertrain control module
- Airbag control module
- Sentry key immobilizer module (if equipped)
- Remote keyless entry module (if equipped)
- Overhead console (if equipped)
- Transmission control module (if equipped)
- Ground circuit open
- CCD Bus (+) or Bus (-) circuit open
- CCD Bus (+) or Bus (-) circuit shorted to ground
- Instrument cluster