March 2021
Service and Repair Manual
Type "UXXX" Faults
Part No. 1272217GT
GS
™
-30 • 32 • 46 • 47
173
Type "UXXX" Faults, continued
DTC
Number
Message on
GCON LCD
Description
Possible Causes
Failure Mode
U041:
GS30,
GS32,
GS46 &
GS47
U041:SWITCHFAULT
GCON DECK ENABLE
GCON deck enable switch stuck closed, or
depressed at system startup.
• GCON deck enable switch stuck closed.
• GCON deck enable switch depressed at system
startup.
• GCON ECM.
All functions
inhibited.
U042:
GS30,
GS32,
GS46 &
GS47
U042:SWITCHFAULT
PCON DRIVE MODE
PCON drive mode switch stuck closed, or
depressed at system startup.
• PCON drive mode switch stuck closed.
• PCON drive mode switch depressed at system
startup.
• PCON ECM.
Drive functions
inhibited.
U043:
GS-3232
U043:SWITCHFAULT
PCON OR MODE
PCON outrigger mode switch stuck closed,
or depressed at system startup.
• PCON outrigger mode switch stuck closed.
• PCON outrigger mode switch depressed at
system startup.
• PCON ECM.
Outrigger
extend/retract
functions inhibited.
U045:
GS30,
GS32,
GS46 &
GS47
U045:SWITCHFAULT
PCON FUNCTION EN
PCON function enable switch stuck closed,
or depressed at system startup.
• PCON function enable switch stuck closed.
• PCON function enable switch depressed at
system startup.
• PCON ECM.
All drive and steer
functions inhibited.
U046
:
GS30,
GS32,
GS46 &
GS47
U046:SWITCHFAULT
PCON LIFT MODE
PCON Lift mode switch stuck closed, or
depressed at system startup.
• PCON lift mode switch stuck closed.
• PCON lift mode switch depressed at system
startup.
• PCON ECM.
All functions
operate except
platform up/down.