Diagnostic Trouble Codes: Troubleshooting
Diagnostic Trouble Codes: Troubleshooting
Page 1 of 19
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  Product: EXCAVATOR
  Model: 320 GC EXCAVATOR KTN
  Configuration: 320 GC Excavator KTN00001-UP (MACHINE) POWERED BY C4.4 Engine
 Troubleshooting
 320 GC, 320, 323, 330 GC and 330 Excavator Machine Systems Troubleshooting
 Media Number -M0081162-02                 Publication Date -01/08/2015            Date Updated -12/09/2018
i07396641
 The following is a list of Diagnostic Trouble Codes (DTC) for 320 and 323 machines. When a
 diagnostic code becomes active, refer to the Troubleshooting section of this manual for a specific
 troubleshooting procedure.
 Each test procedure listed in the diagnostic trouble code table below contains a simplified schematic
 with only the relevant components related to that test procedure. Though the schematics are
 electrically correct, not all the possible harness connectors are shown. Refer to the latest revision of
 the Electrical Schematic to view the entire circuitry of the machine.
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320 GC Excavator KTN00001-UP (MACHINE) POWERED BY C4.4 Engine(M008523... Page 2 of 19
  247-9   SAE J1939 Data Link: Abnormal        Can Data Link - Test
          Update Rate
   247-   SAE J1939 Data Link: Special
                                               Can Data Link - Test
    14    Instruction
          5 VDC Sensor Power Supply:
  262-3                                        Sensor Supply - Test
          Voltage Above Normal
          5 VDC Sensor Power Supply:
  262-4                                        Sensor Supply - Test
          Voltage Below Normal
          Engine Cooling Fan Solenoid:
  291-3                                        Solenoid Valve - Test
          Voltage Above Normal
          Engine Cooling Fan Solenoid:
  291-5                                        Solenoid Valve - Test
          Current Below Normal
          Engine Cooling Fan Solenoid:
  291-6                                        Solenoid Valve - Test
          Current Above Normal
          Travel Alarm: Voltage Above
  376-3                                        Alarm - Test
          Normal
          Travel Alarm: Current Below
  376-5                                        Alarm - Test
          Normal
          Travel Alarm: Current Above
  376-6                                        Alarm - Test
          Normal
   376-   Travel Alarm: Failure Mode Not
                                               Alarm - Test
    11    identifiable
          Engine Speed Dial Switch: Data
  586-2                                        Operator Control Switch (Switch to Battery) - Test
          Erratic, Intermittent or Incorrect
          Engine Speed Dial Switch:
  586-9                                        CAN Data Link - Test
          Abnormal Update Rate
          Engine Control Module:
  590-9                                        CAN Data Link - Test
          Abnormal Update Rate
          Travel Speed Change Solenoid:
  598-3                                        Solenoid Valve - Test
          Voltage Above Normal
          Travel Speed Change Solenoid:
  598-5                                        Solenoid Valve - Test
          Current Below Normal
          Travel Speed Change Solenoid:
  598-6                                        Solenoid Valve - Test
          Current Above Normal
   598-   Travel Speed Change Solenoid:
                                               Solenoid Valve - Test
    11    Failure Mode Not identifiable
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320 GC Excavator KTN00001-UP (MACHINE) POWERED BY C4.4 Engine(M008523... Page 7 of 19
  1952-
   12
                                              Refer to Special Instruction, M0082996, "GRADE
  1952- Chassis Angle Sensor: Special         System Setup and Calibration Procedure for the 2D
   14   Instructions                          and 3D on Next Gen Hydraulic Excavators" for IMU
                                              calibration.
  1966- Hydraulic System CAN Data Link
                                       CAN Data Link - Test
    9   #1: Abnormal Update Rate
  1968- Boom Cylinder Rod End Pressure
                                              Sensor Signal (PWM) - Test
    3   Sensor: Voltage Above Normal
  1968- Boom Cylinder Rod End Pressure
                                              Sensor Signal (PWM) - Test
    4   Sensor: Voltage Below Normal
        Boom Cylinder Rod End Pressure
  1968-
        Sensor: Abnormal Frequency,           Sensor Signal (PWM) - Test
    8
        Pulse Width, or Period
        Boom Cylinder Head End
  1969-
        Pressure Sensor: Voltage Above        Sensor Signal (PWM) - Test
    3
        Normal
        Boom Cylinder Head End
  1969-
        Pressure Sensor: Voltage Below        Sensor Signal (PWM) - Test
    4
        Normal
        Boom Cylinder Head End
  1969- Pressure Sensor: Abnormal
                                              Sensor Signal (PWM) - Test
    8   Frequency, Pulse Width, or
        Period
  1972- Stick Cylinder Rod End Pressure
                                              Sensor Signal (PWM) - Test
    3   Sensor: Voltage Above Normal
  1972- Stick Cylinder Rod End Pressure
                                              Sensor Signal (PWM) - Test
    4   Sensor: Voltage Below Normal
        Stick Cylinder Rod End Pressure
  1972-
        Sensor: Abnormal Frequency,           Sensor Signal (PWM) - Test
    8
        Pulse Width, or Period
  1973- Stick Cylinder Head End Pressure
                                              Sensor Signal (PWM) - Test
    3   Sensor: Voltage Above Normal
  1973- Stick Cylinder Head End Pressure
                                              Sensor Signal (PWM) - Test
    4   Sensor: Voltage Below Normal
        Stick Cylinder Head End Pressure
  1973-
        Sensor: Abnormal Frequency,           Sensor Signal (PWM) - Test
    8
        Pulse Width, or Period
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  2357- Air Conditioner Evaporator Coil       Refer to Testing and Adjusting, M0085479, "Air
    3   Temperature Sensor: Voltage           Conditioning and Heating."
        Above Normal
        Air Conditioner Evaporator Coil
  2357-                                       Refer to Testing and Adjusting, M0085479, "Air
        Temperature Sensor: Voltage
    4                                         Conditioning and Heating."
        Below Normal
        Air Conditioner Evaporator Coil
  2357-                                       Refer to Testing and Adjusting, M0085479, "Air
        Temperature Sensor: Current
    5                                         Conditioning and Heating."
        Below Normal
  2402- Laser Receiver: Erratic,
                                              Sensor (Data Link Type) - Test
    9   Intermittent, or Incorrect
  2425- Boom Angle Sensor: Abnormal
                                              CAN Data Link (Test)
    9   Update Rate
  2425- Boom Angle Sensor: Bad Device
                                              Sensor (Data Link Type) - Test
   12   or Component
                                              Refer to Special Instruction, M0082996, "GRADE
  2425- Boom Angle Sensor: Special            System Setup and Calibration Procedure for the 2D
   14   Instructions                          and 3D on Next Gen Hydraulic Excavators" for
                                              calibration.
  2426- Stick Angle Sensor: Abnormal
                                              CAN Data Link (Test)
    9   Update Rate
  2426- Stick Angle Sensor: Bad Device
                                              Sensor (Data Link Type) - Test
   12   or Component
                                              Refer to Special Instruction, M0082996, "GRADE
  2426- Stick Angle Sensor: Special           System Setup and Calibration Procedure for the 2D
   14   Instructions                          and 3D on Next Gen Hydraulic Excavators" for IMU
                                              calibration.
        Left Joystick Forward / Reverse
  2474-
        Position Sensor: Voltage Above        Sensor Signal (PWM) - Test
    3
        Normal
        Left Joystick Forward / Reverse
  2474-
        Position Sensor: Voltage Below        Sensor Signal (PWM) - Test
    4
        Normal
        Left Joystick Forward / Reverse
  2474- Position Sensor: Abnormal
                                              Sensor Signal (PWM) - Test
    8   Frequency, Pulse Width, or
        Period
  2475- Right Joystick Forward / Reverse      Sensor Signal (PWM) - Test
    3   Position Sensor: Voltage Above
        Normal
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  4326- Swing Angle Sensor: Failure           Sensor (Data Link Type) - Test
   12
  4576- Bucket Angle Sensor: Voltage
                                              Sensor Signal (PWM) - Test
    3   Above Normal
  4576- Bucket Angle Sensor: Voltage
                                              Sensor Signal (PWM) - Test
    4   Below Normal
        Bucket Angle Sensor: Abnormal
  4576-
        Frequency, Pulse Width, or            Sensor Signal (PWM) - Test
    8
        Period
                                              Refer to Special Instruction, M0082996, "GRADE
  4576- Bucket Angle Sensor: Failure
                                              System Setup and Calibration Procedure for the 2D
   11   Mode Not Identifiable
                                              and 3D on Next Gen Hydraulic Excavators".
                                              Refer to Special Instruction, M0082996, "GRADE
  4576- Bucket Angle Sensor: Special          System Setup and Calibration Procedure for the 2D
   14   Instructions                          and 3D on Next Gen Hydraulic Excavators" for
                                              calibration.
  5328- Jog Dial Module: Abnormal
                                              CAN Data Link - Test
    9   Update Rate
  5332- Left Travel Pedal Position Sensor:
                                              Sensor Signal (PWM) - Test
    3   Voltage Above Normal
  5332- Left Travel Pedal Position Sensor:
                                              Sensor Signal (PWM) - Test
    4   Voltage Below Normal
        Left Travel Pedal Position Sensor:
  5332-
        Abnormal Frequency, Pulse             Sensor Signal (PWM) - Test
    8
        Width, or Period
  5333- Swing Motor Angle Sensor Signal
                                              Sensor Signal (PWM) - Test
    3   #1: Voltage Above Normal
  5333- Swing Motor Angle Sensor Signal
                                              Sensor Signal (PWM) - Test
    4   #1: Voltage Below Normal
        Swing Motor Angle Sensor Signal
  5333-
        #1: Abnormal Frequency, Pulse         Sensor Signal (PWM) - Test
    8
        Width, or Period
  5334- Swing Motor Angle Sensor Signal
                                              Sensor Signal (PWM) - Test
    3   #2: Voltage Above Normal
  5334- Swing Motor Angle Sensor Signal
                                              Sensor Signal (PWM) - Test
    4   #2: Voltage Below Normal
  5334-                                       Sensor Signal (PWM) - Test
    8
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                                              Table 2
                                   Machine ECM #2 (MID 432)
   DTC                              Description                                   Procedure
   41-3    8 VDC Supply: Voltage Above Normal                               Sensor Supply - Test
   41-4    8 VDC Supply: Voltage Below Normal                               Sensor Supply - Test
  262-3    5 VDC Sensor Power Supply: Voltage Above Normal                  Sensor Supply - Test
  262-4    5 VDC Sensor Power Supply: Voltage Below Normal                  Sensor Supply - Test
  374-3    Swing Brake Solenoid: Voltage Above Normal                       Solenoid Valve - Test
  374-5    Swing Brake Solenoid: Current Below Normal                       Solenoid Valve - Test
  374-6    Swing Brake Solenoid: Current Above Normal                       Solenoid Valve - Test
   374-
           Swing Brake Solenoid: Failure Mode Not Identifiable              Solenoid Valve - Test
    11
   1130-                                                                    Sensor Signal (PWM)
           Left Side Attachment Pedal Sensor: Voltage Above Normal
     3                                                                      - Test
   1130-                                                                    Sensor Signal (PWM)
           Left Side Attachment Pedal Sensor: Voltage Below Normal
     4                                                                      - Test
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   1130-   Left Side Attachment Pedal Sensor: Abnormal Frequency, Pulse     Sensor Signal (PWM)
     8     Width, or Period                                                 - Test
   1326-                                                                    ECM Location Code -
           ECM Location Code: Data Erratic, Intermittent or Incorrect
     2                                                                      Test
   1393-
           Output Driver Enable Line: Voltage Below Normal                  -
     4
   1593-   Attachment Valve #1 Extend Pressure Solenoid: Voltage Above
                                                                            Solenoid Valve - Test
     3     Normal
   1593-   Attachment Valve #1 Extend Pressure Solenoid: Current Below
                                                                            Solenoid Valve - Test
     5     Normal
   1593-   Attachment Valve #1 Extend Pressure Solenoid: Current Above
                                                                            Solenoid Valve - Test
     6     Normal
   1594-   Attachment Valve #2 Extend Pressure Solenoid: Voltage Above
                                                                            Solenoid Valve - Test
     3     Normal
   1594-   Attachment Valve #2 Extend Pressure Solenoid: Current Below
                                                                            Solenoid Valve - Test
     5     Normal
   1594-   Attachment Valve #2 Extend Pressure Solenoid: Current Above
                                                                            Solenoid Valve - Test
     6     Normal
   1595-   Attachment Valve #3 Extend Pressure Solenoid: Voltage Above
                                                                            Solenoid Valve - Test
     3     Normal
   1595-   Attachment Valve #3 Extend Pressure Solenoid: Current Below
                                                                            Solenoid Valve - Test
     5     Normal
   1595-   Attachment Valve #3 Extend Pressure Solenoid: Current Above
                                                                            Solenoid Valve - Test
     6     Normal
   1596-   Attachment Valve #1 Retract Pressure Solenoid: Voltage Above
                                                                            Solenoid Valve - Test
     3     Normal
   1596-   Attachment Valve #1 Retract Pressure Solenoid: Current Below
                                                                            Solenoid Valve - Test
     5     Normal
   1596-   Attachment Valve #1 Retract Pressure Solenoid: Current Above
                                                                            Solenoid Valve - Test
     6     Normal
   1597-   Attachment Valve #2 Retract Pressure Solenoid: Voltage Above
                                                                            Solenoid Valve - Test
     3     Normal
   1597-   Attachment Valve #2 Retract Pressure Solenoid: Current Below
                                                                            Solenoid Valve - Test
     5     Normal
   1597-   Attachment Valve #2 Retract Pressure Solenoid: Current Above
                                                                            Solenoid Valve - Test
     6     Normal
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   1598-   Attachment Valve #3 Retract Pressure Solenoid: Voltage Above     Solenoid Valve - Test
     3     Normal
   1598-   Attachment Valve #3 Retract Pressure Solenoid: Current Below
                                                                            Solenoid Valve - Test
     5     Normal
   1598-   Attachment Valve #3 Retract Pressure Solenoid: Current Above
                                                                            Solenoid Valve - Test
     6     Normal
   1665-   Variable Relief Valve #1 Pressure Solenoid: Voltage Above
                                                                            Solenoid Valve - Test
     3     Normal
   1665-   Variable Relief Valve #1 Pressure Solenoid: Current Below
                                                                            Solenoid Valve - Test
     5     Normal
   1665-   Variable Relief Valve #1 Pressure Solenoid: Current Above
                                                                            Solenoid Valve - Test
     6     Normal
   1666-   Variable Relief Valve #2 Pressure Solenoid: Voltage Above
                                                                            Solenoid Valve - Test
     3     Normal
   1666-   Variable Relief Valve #2 Pressure Solenoid: Current Below
                                                                            Solenoid Valve - Test
     5     Normal
   1666-   Variable Relief Valve #2 Pressure Solenoid: Current Above
                                                                            Solenoid Valve - Test
     6     Normal
   1970-   Bucket Cylinder Rod End Pressure Sensor: Voltage Above           Sensor Signal (PWM)
     3     Normal                                                           - Test
   1970-   Bucket Cylinder Rod End Pressure Sensor: Voltage Below           Sensor Signal (PWM)
     4     Normal                                                           - Test
   1970-   Bucket Cylinder Rod End Pressure Sensor: Abnormal Frequency,     Sensor Signal (PWM)
     8     Pulse Width, or Period                                           - Test
   1971-   Bucket Cylinder Head End Pressure Sensor: Voltage Above          Sensor Signal (PWM)
     3     Normal                                                           - Test
   1971-   Bucket Cylinder Head End Pressure Sensor: Voltage Below          Sensor Signal (PWM)
     4     Normal                                                           - Test
   1971-   Bucket Cylinder Head End Pressure Sensor: Abnormal               Sensor Signal (PWM)
     8     Frequency, Pulse Width, or Period                                - Test
   1980-   Attachment #1 Cylinder Rod End Pressure Sensor: Voltage          Sensor Signal (PWM)
     3     Above Normal                                                     - Test
   1980-   Attachment #1 Cylinder Rod End Pressure Sensor: Voltage          Sensor Signal (PWM)
     4     Below Normal                                                     - Test
   1980-   Attachment #1 Cylinder Rod End Pressure Sensor: Abnormal         Sensor Signal (PWM)
     8     Frequency, Pulse Width, or Period                                - Test
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   1981-   Attachment #1 Cylinder Head End Pressure Sensor: Voltage         Sensor Signal (PWM)
     3     Above Normal                                                     - Test
   1981-   Attachment #1 Cylinder Head End Pressure Sensor: Voltage         Sensor Signal (PWM)
     4     Below Normal                                                     - Test
   1981-   Attachment #1 Cylinder Head End Pressure Sensor: Abnormal        Sensor Signal (PWM)
     8     Frequency, Pulse Width, or Period                                - Test
   2665-
           Boom Float Down Solenoid: Voltage Above Normal                   Solenoid Valve - Test
     3
   2665-
           Boom Float Down Solenoid: Current Below Normal                   Solenoid Valve - Test
     5
   2665-
           Boom Float Down Solenoid: Current Above Normal                   Solenoid Valve - Test
     6
   4751-
           Quick Coupler Solenoid #1: Voltage Above Normal                  Solenoid Valve - Test
     3
   4751-
           Quick Coupler Solenoid #1: Current Below Normal                  Solenoid Valve - Test
     5
   4751-
           Quick Coupler Solenoid #1: Current Above Normal                  Solenoid Valve - Test
     6
   4752-
           Quick Coupler Solenoid #2: Voltage Above Normal                  Solenoid Valve - Test
     3
   4752-
           Quick Coupler Solenoid #2: Current Below Normal                  Solenoid Valve - Test
     5
   4752-
           Quick Coupler Solenoid #2: Current Above Normal                  Solenoid Valve - Test
     6
   5235-   Right Joystick Thumbwheel #1 Position Sensor: Voltage Above      Sensor Signal (PWM)
     3     Normal                                                           - Test
   5235-   Right Joystick Thumbwheel #1 Position Sensor: Voltage Below      Sensor Signal (PWM)
     4     Normal                                                           - Test
   5235-   Right Joystick Thumbwheel #1 Position Sensor: Abnormal           Sensor Signal (PWM)
     8     Frequency, Pulse Width, or Period                                - Test
   5236-   Right Joystick Thumbwheel #2 Position Sensor: Voltage Above      Sensor Signal (PWM)
     3     Normal                                                           - Test
   5236-   Right Joystick Thumbwheel #2 Position Sensor: Voltage Below      Sensor Signal (PWM)
     4     Normal                                                           - Test
   5236-   Right Joystick Thumbwheel #2 Position Sensor: Abnormal           Sensor Signal (PWM)
     8     Frequency, Pulse Width, or Period                                - Test
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   5237-   Left Joystick Thumbwheel #1 Position Sensor: Voltage Above       Sensor Signal (PWM)
     3     Normal                                                           - Test
   5237-   Left Joystick Thumbwheel #1 Position Sensor: Voltage Below       Sensor Signal (PWM)
     4     Normal                                                           - Test
   5237-   Left Joystick Thumbwheel #1 Position Sensor: Abnormal            Sensor Signal (PWM)
     8     Frequency, Pulse Width, or Period                                - Test
   5238-   Left Joystick Thumbwheel #2 Position Sensor: Voltage Above       Sensor Signal (PWM)
     3     Normal                                                           - Test
   5238-   Left Joystick Thumbwheel #2 Position Sensor: Voltage Below       Sensor Signal (PWM)
     4     Normal                                                           - Test
   5238-   Left Joystick Thumbwheel #2 Position Sensor: Abnormal            Sensor Signal (PWM)
     8     Frequency, Pulse Width, or Period                                - Test
   5251-
           Variable Angle Boom Extend Solenoid: Voltage Above Normal        Solenoid Valve - Test
     3
   5251-
           Variable Angle Boom Extend Solenoid: Current Below Normal        Solenoid Valve - Test
     5
   5251-
           Variable Angle Boom Extend Solenoid: Current Above Normal        Solenoid Valve - Test
     6
   5252-
           Variable Angle Boom Retract Solenoid: Voltage Above Normal       Solenoid Valve - Test
     3
   5252-
           Variable Angle Boom Retract Solenoid: Current Below Normal       Solenoid Valve - Test
     5
   5252-
           Variable Angle Boom Retract Solenoid: Current Above Normal       Solenoid Valve - Test
     6
   5331-
           Stick Unload Solenoid: Voltage Above Normal                      Solenoid Valve - Test
     3
   5331-
           Stick Unload Solenoid: Current Below Normal                      Solenoid Valve - Test
     5
   5331-
           Stick Unload Solenoid: Current Above Normal                      Solenoid Valve - Test
     6
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 Copyright 1993 - 2019 Caterpillar Inc.                                   Sun Jul 14 01:30:00 UTC+0700 2019
 All Rights Reserved.
 Private Network For SIS Licensees.
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