Troubleshooting Table 34: Drive and Valve Error Codes

7

Left forward propel pump solenoid wiring or coil fault

LH Front Pump solenoid valve coil and/or wiring connection is open or short

Both pumps will be disabled at first. Then both pumps could be run in limp mode with no forward propel on left track

Check front/left solenoid valve coil wiring and connector

Check resistance of front/left solenoid valve coil (2.0 – 3.0 ohms at 70F between two connector pins)

Check controller2 connector and wiring

8 Left reverse propel pump solenoid wiring or coil fault

RH Front Pump solenoid valve coil and/or wiring connection is open or short

Both pumps will be disabled at first. Then both pumps could be run in limp mode with no reverse propel on left track

Check front/right solenoid valve coil wiring and connector

Check resistance of front/ right solenoid valve coil (2.0 – 3.0 ohms at 70F between two connector pins)

Check controller2 connector and wiring

9 Right front/left solenoid valve coil wiring and connector

RH Rear Pump solenoid valve coil and/or wiring connection is open or short

Both pumps will be disabled at first. Then both pumps could be run in limp mode with no reverse propel on right track

Check rear/right solenoid valve coil wiring and connector

Check resistance of rear/ right solenoid valve coil (2.0 – 3.0 ohms at 70F between two connector pins)

Check controller2 connector and wiring

10 Right forward propel pump solenoid wiring or coil fault

LH Rear Pump solenoid valve coil and/or wiring connection is open or short

Both pumps will be disabled at first. Then both pumps could be run in limp mode with no forward propel on right track

Check rear/left solenoid valve coil wiring and connector

Check resistance of rear/left solenoid valve coil (2.0 – 3.0 ohms at 70F between two connector pins)

Check controller2 connector and wiring

Check center/bottom solenoid valve coil wiring and connector

11

Attachment

Bottom

Attachment

Check resistance of center/ bottom solenoid valve coil (5.0 – 5.6 ohms at 70F between the two connector pins)

Check Controller2 connector and wiring

50940165/C0718338Printed

Table 34: Drive and Valve Error Codes

Check center/top solenoid valve coil wiring and connector

12

Attachment tilt back solenoid valve A wire or coil fault

Top center valve solenoid valve coil and/or wire connection is open or short.

Attachment tilt back function is disabled.

Check resistance of center/ top solenoid valve coil (5.0 –5.6 ohms at 70F between the two connector pins)

Check Controller2 connector and wiring

13

Top auxiliary QD solenoid valve A wiring or coil fault

Top left valve solenoid valve coil and/or wire connection is open or short

Auxiliary forward function is disabled. No hydraulic flow out of top standard auxiliary QD when proportional switch on right joystick is moved forward/up

Check left/top solenoid valve coil wiring and connector

Check resistance of left/top solenoid valve coil (5.0 – 5.6 ohms at 70F between the two connector pins)

Check Controller1 wiring and connectors

14

Bottom auxiliary QD solenoid valve B wiring or coil fault

Bottom left valve solenoid valve coil and/or wire connection is open or short

Auxiliary reverse function is disabled. No hydraulic flow out of bottom standard auxiliary QD when proportional switch on right joystick is moved back/down

Check left/bottom solenoid valve coil wiring and connector

Check resistance of left/ bottom solenoid valve coil (5.0 – 5.6 ohms at 70F between the two connector pins)

Check Controller1 wiring and connectors

Check right/bottom solenoid valve coil wiring and connector

15

Lift arm up solenoid valve B wiring or coil fault

Bottom right valve solenoid valve coil and/or wire connection is open or short

Lift arm up function is disabled

Check resistance of right/ bottom solenoid valve coil (5.0 – 5.6 ohms at 70F between the two connector pins)

Check Controller1 wiring and connectors

Check right/top solenoid valve coil wiring and connector

16

Lift arm down solenoid valve A wiring or coil fault

Top right valve solenoid valve coil and/or wire connection is open or short

Lift arm down function is disabled

Check resistance of right/top solenoid valve coil (5.0 – 5.6 ohms at 70F between the two connector pins)

Check Controller1 wiring and connectors

Table 34: Drive and Valve Error Codes

22Left joystick data fault

Internal error on one or both of the X and Y axis of the left joystick

23Right joystick data fault Internal error on one or both of the X and Y axis of the right joystick

24 No left joystick CAN communication No CAN communication with the left joystick

Faulty axis is disabled; functional axis remains operational

Faulty axis is disabled; functional axis remains operational

ISO control pattern: Both pumps are disabled

Dual Hand control pattern: Both pumps and lift arm function are disabled

ISO control pattern: Boom, bucket and std aux are disabled

Check joystick wiring and connectors

Replace joystick

Check joystick wiring and connectors

Replace joystick

Check joystick wiring and connector

Check joystick supply voltage (9v minimum)

Check joystick wiring and connector

25

27 (1-2)

No right joystick CAN communication No CAN communication with the right joystick

No CAN communication: Engine ECU to Controller2

CAN messages are not being sent from engine ECU to Controller2. May be accompanied by code 1-2

Dual Hand control pattern: Both pumps, bucket and standard auxiliary hydraulics are disabled.

Engine anti-stall functionality is disabled

Check joystick supply voltage (9v minimum)

Check connector and wiring on engine ECU and Controller2

Check connector and wiring on display and controller2

28 (1-4)

No CAN communication: Controller2 to In-Cab display (Not displayed on screen)

CAN messages not being sent from Controller2 to Display. May be accompanied by code 1-4

Pumps, boom, bucket and std aux are disabled

Check cab to chassis harness connector on rear wall of cab

NOTE: This code will never display on the screen due to missing CAN connection. Used only when troubleshooting with the diagnostic laptop tool

29 (1-3)

No CAN communication: Cotroller1 to Controller2

35 Pump swash plate sensor supply voltage high/low fault

CAN messages not being sent from Controller1 to Controller2. May be accompanied by code 1-3

Supply voltage for swash plate sensors is faulty, swash sensor output voltage is out of range

36 Battery voltage high/low fault Battery voltage is out of range

Boom and standard auxiliary hydraulics are disabled

Check connector and wiring on controller1 and controller2

Both pumps are disabled

Check connector and wiring to sensors

Check sensor supply voltage

Check alternator, battery and charging circuit

Both pumps, boom, bucket and standard auxiliary hydraulics are disabled

Check battery voltage (9 –16v)

Check all power and ground connections to controller2

Table 34: Drive and Valve Error Codes

Check Controller2 power relay

Check fuses to Controller2

37 Pump and attachment tilt solenoid supply voltage fault

Supply voltage to solenoid valves controlled by Controller2 is out of range Both pumps and bucket are disabled

Check wiring and connectors on Controller2 and on solenoid valves

Check supply voltage (9 –16v)

See individual pump solenoid fault codes (7-10)

38

Limp mode active (See “Travel Drive Error Condition Operation (Limp Mode)” on page94)

Any pump solenoid fault (codes 7-10)

Applies when solenoid codes 7-10 are active. Functional pump solenoids will operate at reduced output (20% of max). The faulty solenoid will remain disabled

Limp mode is only operable with a single solenoid/sensor fault. If there are multiple solenoid and sensor faults, limp mode is inoperable and both pumps will remain disabled

See individual pump sensor fault codes (3-6)

39

Open loop mode (See “Travel Drive Error Condition Operation (Limp Mode)” on page94)

Any pump sensor fault (codes

Applies when sensor codes 3-6 are active. The remaining operating swash plate sensor will also be disabled. The pump solenoids will operate the pump without feedback at reduced output

CAN messages not being sent from engine ECU to display. May be accompanied by code 27

Engine parameters are not displayed

Check connector and wiring on engine ECU and display

Check cab to chassis

Open loop mode is only operable with a single sensor/solenoid fault. If there are multiple sensor/solenoid faults, open loop mode is inoperable and both pumps will remain disabled 1-2 No CAN communication: Engine ECU to display harness connector on rear wall of cab 1-3 (1-4) (29) No CAN Communication: Cotroller1 to display

CAN messages not being sent from Controller1 to Display. May be accompanied by codes 29 and 1-4

Both pumps and multiple functions may become disabled

Check connector and wiring on Controller1, Controller2 and display

Check cab to chassis harness connector on rear wall of cab 1-4 (1-3) No CAN communication: Display to Cotroller2

CAN messages not being sent from Display to Controller2. May be accompanied by code 1-3

Both pumps and multiple functions may become disabled

Check connector and wiring on Controller1, Controller2 and display

Check cab to chassis harness connector on rear wall of cab

1.Pump swashplate sensor supply voltage: (4.75 – 5.25v between outer supply and outer return wires in connector).

Feedback/Signal voltage (between center signal wire in connector and ground while connected to sensor): 2.48v to 2.52v when pump is in neutral. .2v and 4.8v at maximum pump displacement in the forward direction.

Troubleshooting

NOTE: See “Electrical Control System” on page299 for Controller2, Controller2, Controller3 and engine ECU function details and locations.

See “Hydrostatic Pumps” on page285 for hydraulic pump function component locations.

See “Hydraulic Control Valve” on page264 for control valve valve solenoid locations.