SECTION 7 - DIAGNOSTIC TROUBLE CODES
3121788
7-23
9952 POWER MODULE FAILURE –
INTERNAL ERROR
None
9_9
• DriveState = PREVENTED
• LiftUpState = PREVENTED
Curtis Code 43: Pump Throttle Wiper High
Set:
Pot2 wiper voltage is lower than the high
fault threshold (can be changed with the VCL fun-
citon Setup_Pot_Faults())
Effect:
ShutdownPump (if
Lift_Switch_Only_Enable=Off), ShutdownPD (If
Lower_Switch_Only_Enable=Off)
Possible Cause:
•
See Monitor Menu>> Inputs: Pot2 Raw
•
Pot2 wiper voltage too high
X
9953 POWER MODULE FAILURE –
INTERNAL ERROR
None
9_9
• DriveState = PREVENTED
• LiftUpState = PREVENTED
Curtis Code 97: Pump Hardware Fault
Set:
Controller hardware indicated inappropriate
voltage at pump motor M- connection, or inter-
nal supply voltage problem.
Effect:
ShutdownMotor,ShutdownMainContac-
tor,ShutdownEMBrake, ShutdownThrottle, Full-
Brake, ShutdownPump
Possible Cause:
•
External short of the pump motor
•
Controller defective
X
9954 POWER MODULE FAILURE –
INTERNAL ERROR
None
9_9
• DriveState = PREVENTED
• LiftUpState = PREVENTED
Curtis Code 47: Pump HPD Fault
Set:
Incorrect sequence of KSI and lift, lower, or
hydraulic throttle inputs according to
Hyd_Inhibit_Type parameter.
Effect:
ShutdownPump
Possible Cause:
•
KSI and Hydraulic throttle input applied in
incorrect sequence; hydraulic throttle input
was active when KSI was turned on.
•
Fault wiring, crimps, or switches at KSI, lift,
lower, or hydraulic throttle inputs.
•
See Monitor menu>> Inputs
X
9955 POWER MODULE FAILURE –
INTERNAL ERROR
None
9_9
• DriveState = PREVENTED
• LiftUpState = PREVENTED
Curtis Code 52: Pump Not Responding
Set:
Pump current is equal to 0, when it is being
commanded to percentage larger than 0%
Effect:
ShutdownPump
Possible Cause:
•
Load is disconnected
X
9956 POWER MODULE FAILURE –
INTERNAL ERROR
None
9_9
• DriveState = PREVENTED
• LiftUpState = PREVENTED
Curtis Code 49: Parameter Change Fault
Set:
Adjustment of a parameter setting that
requires cycling of KSI.
Effect:
ShutdownMotor,ShutdownMainContac-
tor,ShutdownEMBrake, ShutdownThrottle, Full-
Brake, ShutdownPump
Possible Cause:
•
This is a safety fault caused by a change in
certain parameter setting so that the vehicle
will not operate until KSI is cycled. For exam-
ple, if a user changes the Throttle Type this
fault will appear and require cycling of KSI
before vehicle can operate.
X
Table 7-1. Diagnostic Trouble Codes (DTC)
DTC
Help Message
Alarm
Flash
Code
Action
Trigger
3246R
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