Bus Failure Messages - Bus (+) and Bus (-) Shorted Together

Test 1 - 3:

SYMPTOM
BUS FAILURE MESSAGE - BUS (+) AND BUS (-) SHORTED TOGETHER

POSSIBLE CAUSES
- BUS (+) and BUS (-) circuits shorted
- BUS system module/component internally shorted
- DRB/DRB cable BUS (+) and BUS (-) shorted together