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MicroController Control System Troubleshooting
PROBLEM 25
Drive motor does not operate or operates with
low power or is erratic. Pump and power steering
systems operation normal.
POSSIBLE CAUSE
Accelerator defect; Direction control circuit defect ;
Current limit set too low; Wiring defect ;
Logics defect.
CHECKS
Perform Quick-diagnostics.
Passed Does not pass
Readjust current limit to specifications.
In specification
Repair open circuit or replace drive motor.Replace logics.
See respective problem for
defective circuit.
Check drive motor and cables (A1, A2).
Check OK Open circuit
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