312C, 315C, 318C, 319C, 320C, 321C, 322C, 325C, 330C and M325C Excavators and 325C MHPU and 330C MHPU Mobile Hydraulic Power Units Engine and Pump Control – V2 – Communication Problem Between Controller and Monitor – Troubleshoot – “CID 248” and “CID 588”

Communication Problem Between Controller And Monitor ( 312C And 315C)



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Diagram for 312C and 315C

Communication Problem Between Controller And Monitor ( 318C)



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Diagram for 318C

Communication Problem Between Controller And Monitor ( 319C and 320C )



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Diagram for 319C and 320C series

Communication Problem Between Controller And Monitor ( 321C)



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Communication Problem Between Controller And Monitor ( 322C)



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Diagram for 322C

Communication Problem Between Controller And Monitor ( 325C, M325C MH, and 330C)



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Diagram for 325C, M325C MH, and 330C

“Monitor Is Abnormal “

Note: This procedure includes models 312C through 322C.




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“Monitor Is Abnormal” ( 325C, M325C MH, and 330C)



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Diagram for 325C, M325C MH, and 330C

Check Of Power Supply To Monitor



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Check Of Monitor Indicator Signal



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