MEC升降车平台96265-SCH维修电气原理图手册

Section 10-Fault CodesAugust 2023Fault Code ListFaultCodeDescriptionExplanationA1 PCU 186 TimeoutPlatfom Control Unit (PCU)not communicating.A2PCU 187 TimeoutPlatfomm Control Unit (PCU)not communicating.A3ReserveNot used.A4Level Ang TimeoutLevel Sensor failed or open circuit.A5PCU_Y_FaultCheck Platform Control Unit (PCU)connections.Replace Platform Control Unit (PCU)board.A6System AlamGeneral fault-see other fault codes.A7Jib Angl FaultJib Position Sensor open or shorted.A8Jib Pres FaultJib Pressure Sensor open or shorted.A9Mast Rot Ev Open LoadMast Rotate Coil open circuit or wire off.A10Mast Rot Ev Sht LoadMast Rotate Coil shorted-drawing excessive amperage.A11 Mast UD Ev Opn LoadMast Lift Coil open circuit or wire off.A12 Mast UD Ev Sht LoadMast Lift Coil shorted-drawing excessive amperage.A13 Steer Ev Open LoadSteer Coil open circuit or wire off.A14 Steer Ev Short LoadSteer Coil shorted-drawing excessive amperage.A15Pump Can TimeOutPump Motor Controller not communicating.A16Travel Can TimeOutTraction Motor Controller not communicating.A17PCU Can TimeOutPlatfom Control Unit(PCU)not communicating.A18mA_Pres_A_FaultPressure Sensor A output fault.Check pressure sensor and wiring.A19mA_Pres_B_FaultPressure Sensor B output fault.Check pressure sensor and wiring.A20mA_Pres Rdn FaultPressure Sensor A&B output not equal fault.Check pressure sensor and wiring.A21Jib Am Up Ev Opn LoadJib Coil open circuit or wire off.A22 Jib Am Up Ev Sht LoadJib Coil shorted-drawing excessive amperage.A31 Left Motor Mcu Over CurrentLeft Traction Motor Control Unit excessive output amperage.A32Left Motor Curr Sens FaultLeft Traction Motor amperage sensor fault.A33 Left Motor Encode FaultLeft Traction Motor Encoder fault-possible wire off or faulty encoder.A34Left Motor Open CircuitLeft Traction Motor U,V.,W wire open circuit.Check wire connections at motor.A35Left Motor Short CircuitLeft Traction Motor drawing excessive amperage.Possible motor lock up or internal short.A36A36:Left Motor Mcu Temp Too HighLeft Traction Motor Control Unit excessive temperature.A37Left Motor Temp OverLeft Traction Motor Temperature Sensor indicating excessivetemperature.If motor is cool,check temp sensor.A38Left Motor Cut Off Temp OverLeft Traction Motor Temperature Sensor indicating excessivetemperature.If motor is cool,check temp sensor.A39Left Motor Temp Sens FaultLeft Traction Motor Temperature Sensor not communicating withMCU.A40Left Motor BlockLeft Traction Motor unable to turn.A41Left Motor Over Spd FaultLeft Traction Motor Temperature excessive RPMs.A42Left Motor Brake Coil Open CircuitLeft Traction Motor Brake failed or broken wire.Page 29MME30-RJ-Service Parts Manual(mec)