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Hitch Control Center (HCC) Diagnostic Trouble
Codes
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Diagnostic Trouble Code
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Display
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Solution
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HCC 158.4
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Rear Hitch System
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Hitch control unit supply voltage low. Reduce electrical load
or increase engine RPM to attempt vehicle recovery.
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HCC 168.4
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Electrical System
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Hitch control unit voltage low. Power down and check fuse. Restart
engine to attempt vehicle recovery.
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HCC 190.2
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Rear Hitch System
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Calibration failed due to engine speed too low. Raise engine
speed above 1800 RPM and repeat calibration procedure.
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HCC 629.12
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Rear Hitch System
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Hitch control unit fault. Restart engine to attempt vehicle
recovery.
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HCC 630.13
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Rear Hitch System
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Hitch not calibrated. Perform calibration procedure.
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HCC 1079.3
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Rear Hitch System
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Hitch control unit sensor supply voltage high. Restart engine
to attempt vehicle recovery.
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HCC 1079.4
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Rear Hitch System
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Hitch control unit sensor supply voltage low. Restart engine
to attempt vehicle recovery.
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HCC 1638.2
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Rear Hitch System
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Calibration failed due to hydraulic oil temperature low. Raise
oil temperature above 50C and repeat calibration procedure.
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HCC 1873.2
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Rear Hitch System
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Hitch position sensing system voltage fault.
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HCC 1873.3
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Rear Hitch System
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Hitch position sensing system voltage high fault.
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HCC 1873.4
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Rear Hitch System
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Hitch position sensing system voltage low fault.
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HCC 1873.13
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Rear Hitch System
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Hitch calibration failed due to <something>. Repeat calibration
procedure.
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HCC 1881.3
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Rear Hitch System
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Hitch System Limited. Reference Diagnostic Procedure in Technical
Manual.
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HCC 1881.4
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Rear Hitch System
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Hitch System Limited. Reference Diagnostic Procedure in Technical
Manual
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HCC 1881.13
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Rear Hitch System
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Hitch System Calibration Error. Reference Calibration Procedure
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HCC 2005.9
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Communication System
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ACU Messages Missing. Reference Diagnostic Procedure in Technical
Manual
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HCC 2071.9
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Communication System
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CCU Messages Missing. Reference Diagnostic Procedure in Technical
Manual
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HCC 2139.9
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Communication System
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CSM Messages Missing. Reference Diagnostic Procedure in Technical
Manual
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HCC 2152.9
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Communication System
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HV1 Messages Missing. Reference Diagnostic Procedure in Technical
Manual
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HCC 2602.18
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Hydraulic System
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Hydraulic Oil Too Low. Check Oil Level
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HCC 521000.2
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Rear Hitch System
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Hitch System Has Malfunctioned. Reference Diagnostic Procedure
in Technical Manual
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HCC 521000.31
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Rear Hitch System
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Hitch System Has Malfunctioned. Reference Diagnostic Procedure
in Technical Manual
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HCC 521001.2
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Rear Hitch System
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Hitch System Not Operating. Reference Diagnostic Procedure
in Technical Manual
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HCC 523652.2
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Hydraulic System
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Hitch System Has Malfunctioned. Reference Diagnostic Procedure
in Technical Manual
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HCC 523788.2
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Rear Hitch System
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Hitch System Limited. Reference Diagnostic Procedure in Technical
Manual
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HCC 523788.14
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Rear Hitch System
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Hitch System Limited. Reference Diagnostic Procedure in Technical
Manual
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HCC 523910.2
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Rear Hitch System
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Hitch System Not operating correctly. Reference Diagnostic Procedure
in Technical Manual
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HCC 523952.31
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Rear Hitch Disabled
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Hitch System Cannot be engaged. Reference Diagnostic Procedure
in Technical Manual
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HCC 524016.4
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Rear Hitch System
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Hitch System Circuit Fault. Reference Diagnostic Procedure
in Technical Manual
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HCC 524212.19
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Hydraulic System
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Hitch System Not operating. Reference Diagnostic Procedure
in Technical Manual
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HCC 524212.31
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Rear Hitch System
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Hitch System Cannot be engaged. Reference Diagnostic Procedure
in Technical Manual
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HCC 600006.31
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Rear Hitch System
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Vehicle Controls Not Operating Correctly. Reference Diagnostic
Procedure in Technical Manual.
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