
56
MicroController Control System
Troubleshooting
PROBLEM 3
Display portion of the CVMS seems random or wrong.
Lift truck operation normal.
POSSIBLE CAUSE
Connection defect; Wiring defect; Logics defect; Display
defect.
Check for shorts to battery negative from
PIN 1 to PIN 5 on CVMS connector.
No shorts found
Shorted
Repair or replace open wire.
Replace logics.
CHECKS
Check continuity from logics to CVMS connector
(wire RD / WH / GN / YL / BK).
Continuity
No continuity
Repair or replace shorted wire.
Содержание B20S-3
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