31 Fault Codes

Sinoboom 4655E Error Codes

Complete fault code reference for the Sinoboom 4655E Scissor Lift. Click any code below for detailed diagnosis and solutions.

Scissor Lift • Sinoboom

All 31 Fault Codes

0-Series Codes5

01

System Initialization Fault

ECU failed to initialize properly at startup

02

System Communication Fault

Communication error between platform and ground controls

03

Invalid Option Setting

Configuration parameters are incorrect or corrupted

04

Calibration Fault

System requires calibration or calibration data invalid

08

Key Switch Error

Key switch malfunction or wiring fault

1-Series Codes5

10

MC Communication Fault

Motor controller communication lost

103

Battery Draining

Battery charge level low

104

Motor Controller Fault

General motor controller error detected

12

Up/Down Switch ON at Power-up

Chassis up or down switch stuck or activated during startup

18

Pothole Guard Fault

Pothole protection guard sensor fault

3-Series Codes4

31

Pressure Sensor Fault

Hydraulic pressure sensor error

32

Angle Sensor Fault

Tilt/angle sensor out of range or disconnected

35

Pressure Sensor 2 Fault

Secondary pressure sensor error

36

Battery Drain Alarm

Battery voltage critically low

4-Series Codes4

42

Left Turn Switch Fault

Left turn switch stuck ON at power-up

43

Right Turn Switch Fault

Right turn switch stuck ON at power-up

46

4655E Joystick Enable Switch Fault (dead-man / enable)

On the Sinoboom 4655E, code 46 means the joystick enable (dead-man) switch was already closed at power-up, or the enable circuit is stuck/shorted. Operators who grip the trigger before the controller finishes boot will also trip it.

47

Joystick Not in Neutral

Drive joystick not centered at power-up

5-Series Codes6

52

Drive Forward Coil Fault

Forward drive solenoid coil failure

53

Drive Reverse Coil Fault

Reverse drive solenoid coil failure

54

Lift Up Coil Fault

Lift up solenoid coil failure

55

Lift Down Coil Fault

Lift down solenoid coil failure

56

Right Turn Coil Fault

Right steering solenoid coil failure

57

Left Turn Coil Fault

Left steering solenoid coil failure

6-Series Codes1

68

4655E Low Voltage Fault (battery / ECU under-voltage)

On the larger Sinoboom 4655E, code 68 often shows up when the pack is marginal for the platform’s higher amp draw, or when lift/drive overlap dips voltage below the ECU threshold.