Diagnostic Trouble Codes (DTC) List

The following is a list of most common Diagnostic Trouble Codes (DTC) with a possible solution. If the listed solution does not solve the code, or you experience a code not listed here, consult appropriate technical manual or contact your local John Deere dealer.


Machine DTC’s

DTC Code

DTC Description

Possible Solution

000096.03

Fuel Sensor Voltage Incorrect

Check connections and wiring

000096.16

Fuel Sensor Reading Out of Range

Check connections and wiring

000100.01

Low Engine Oil Pressure

Check engine oil

000110.00

High Engine Coolant Temperature

Check engine coolant

000158.00

Regulated Voltage Above 18V

Check alternator wiring and connections

000168.00

Battery Voltage Above 18V

Check battery and connections

000168.01

Battery Voltage Below 8V

Check battery and connections

000168.16

Battery Voltage Between 16V and 18V

Check battery and connections

000168.18

Battery Voltage Between 8V and 9V

Check battery and connections

000190.00

Engine RPM Out of Range High

Verify Engine RPM

000190.01

Engine RPM Out of Range Low

Verify Engine RPM

000190.02

Engine Speed Sensor Data Erratic or Missing

Check connections and wiring

000190.09

Engine Speed Sensor Communication Error

Check connections and wiring

000677.03

Starter Relay Short

Check relay, connections, and wiring

000677.04

Starter Relay Short

Check relay, connections, and wiring

000920.03

Audible Alarm Short

Check connections and wiring

000920.04

Audible Alarm Short

Check connections and wiring

001638.00

High Hydraulic Oil Temperature

Check hydraulic oil

001713.00

Hydraulic Filter Restricted

Check hydraulic oil filter

001713.03

Hydraulic Filter Restriction Switch Short

Check switch, connections, and wiring

001713.31

Hydraulic Filter Restriction Switch Error

Check switch, connections, and wiring

516124.03

Fuel Hold or Engine Run Circuit Short

Check fuel solenoid, connections, and wiring

516124.04

Fuel Hold or Engine Run Circuit Short

Check fuel solenoid, connections, and wiring

516125.03

Fuel Pull-In Relay Short

Check relay, connections, and wiring

516125.04

Fuel Pull-In Relay Short

Check relay, connections, and wiring

516129.03

Raise/Extend Solenoid Short

Check solenoid, connections, and wiring

516129.04

Raise/Extend Solenoid Short

Check solenoid, connections, and wiring

516130.03

Right Extend Solenoid Short

Check solenoid, connections, and wiring

516130.04

Right Extend Solenoid Short

Check solenoid, connections, and wiring

516131.03

Left Extend Solenoid Short

Check solenoid, connections, and wiring

516131.04

Left Extend Solenoid Short

Check solenoid, connections, and wiring

516132.03

Right Retract Solenoid Short

Check solenoid, connections, and wiring

516132.04

Right Retract Solenoid Short

Check solenoid, connections, and wiring

516133.03

Left Retract Solenoid Short

Check solenoid, connections, and wiring

516133.04

Left Retract Solenoid Short

Check solenoid, connections, and wiring

516135.03

Air Preheat Relay Short

Check relay, connections, and wiring

516135.04

Air Preheat Relay Short

Check relay, connections, and wiring

516136.03

Narrow/Wide Solenoid Short

Check solenoid, connections, and wiring

516136.04

Narrow/Wide Solenoid Short

Check solenoid, connections, and wiring

516182.03

4WD Relay Short

Check relay, connections, and wiring

516182.04

4WD Relay Short

Check relay, connections, and wiring

516183.02

Right Proximity Sensor Voltage Data Incorrect

Check sensor, connections, and wiring

516183.07

Right Lift Arm Timing Incorrect

Inspect lift arm and lift system

516184.02

Left Proximity Sensor Voltage Data Incorrect

Check sensor, connections, and wiring

516184.07

Left Lift Arm Timing Incorrect

Inspect lift arm and lift system

516184.04

Left Proximity Sensor Short

Check sensor, connections, and wiring

516199.03

Raise/Lower Select Solenoid Short

Check solenoid, connections, and wiring

516199.04

Raise/Lower Select Solenoid Short

Check solenoid, connections, and wiring

516200.03

Rear Mow Solenoid Short

Check solenoid, connections, and wiring

516200.04

Rear Mow Solenoid Short

Check solenoid, connections, and wiring

516201.03

Front Raise/Lower Solenoid Short

Check solenoid, connections, and wiring

516201.04

Front Raise/Lower Solenoid Short

Check solenoid, connections, and wiring

516202.03

Rear Raise/Lower Solenoid Short

Check solenoid, connections, and wiring

516202.04

Rear Raise/Lower Solenoid Short

Check solenoid, connections, and wiring

516206.03

Front (or single) Mow Solenoid Short

Check solenoid, connections, and wiring

516206.04

Front (or single) Mow Solenoid Short

Check solenoid, connections, and wiring

516207.03

48V Alternator Relay Short

Check relay, connections, and wiring

516207.04

48V Alternator Relay Short

Check relay, connections, and wiring

516708.00

Hydraulic Leak Detected (if equipped)

Check for hydraulic system leaks

520957.03

Park Brake Solenoid Short

Check solenoid, connections, and wiring

520957.04

Park Brake Solenoid Short

Check solenoid, connections, and wiring

521426.31

Incorrect Voltage Detected from Lower Switch

Check switch, connections, and wiring

521427.31

Incorrect Voltage Detected from Raise Switch

Check switch, connections, and wiring

521428.03

Lower Solenoid Short

Check solenoid, connections, and wiring

521428.04

Lower Solenoid Short

Check solenoid, connections, and wiring

521429.03

Raise Solenoid Short

Check solenoid, connections, and wiring

521429.04

Raise Solenoid Short

Check solenoid, connections, and wiring

522405.31

Park Brake Manual Release Valve Open

Close park brake manual release valve

523324.03

Hydrostat Swashplate Sensor Short

Check sensor, connections, and wiring

523324.04

Hydrostat Swashplate Sensor Short

Check sensor, connections, and wiring

523590.03

Forward Pedal Sensor Short

Check sensor, connections, and wiring

523590.04

Forward Pedal Sensor Short

Check sensor, connections, and wiring

523591.03

Reverse Pedal Sensor Short

Check sensor, connections, and wiring

523591.04

Reverse Pedal Sensor Short

Check sensor, connections, and wiring

523735.03

FWD/REV Solenoid Short

Check solenoid, connections, and wiring

523735.04

FWD/REV Solenoid Short

Check solenoid, connections, and wiring

523899.03

Work Light Relay Short

Check relay, connections, and wiring

524069.03

Reverse Solenoid Short

Check solenoid, connections, and wiring

524069.04

Reverse Solenoid Short

Check solenoid, connections, and wiring

524071.03

Forward Solenoid Short

Check solenoid, connections, and wiring

524071.04

Forward Solenoid Short

Check solenoid, connections, and wiring


Reel Unit Controller DTC’s

DTC Code

DTC Description

Possible Solution

000628.12

Stuck in Boot Block

See your John Deere dealer.

002513.03

Phase shorted to high current (Orange)

Check high current wires and connections to motor.

002513.04

Phase shorted to ground (Orange)

Check high current wires and connections to motor.

002513.05

Phase open (Orange)

Check high current wires and connections to motor.

002514.03

Phase shorted to high current (Black)

Check high current wires and connections to motor.

002514.04

Phase shorted to ground (Black)

Check high current wires and connections to motor.

002514.05

Phase open (Black)

Check high current wires and connections to motor.

002515.03

Phase shorted to high current (Green)

Check high current wires and connections to motor.

002515.04

Phase shorted to ground (Green)

Check high current wires and connections to motor.

002515.05

Phase open (Green)

Check high current wires and connections to motor.

003511.00

Motor Hall Sensor Voltage High

Check controller wiring and connections.

003511.01

Motor Hall Sensor Voltage Low

Check controller wiring and connections.

003597.00

Controller 14 V High

Check controller wiring and connections.

003597.01

Controller 14 V Low

Check controller wiring and connections.

521153.15

Internal Controller Over Temperature Shutdown

Check reel to bedknife clearance.

Check for failed reel bearings.

Check controller wiring and connections.

522327.00

Internal Motor Over Temperature Shutdown

Allow motor to cool.

Check reel to bedknife clearance.

Check for failed reel bearings.

Check low current wiring and connections.

522917.00

Motor current over limit

Check reel to bedknife clearance.

Check for failed reel bearings.

522917.06

Motor current over limit

Check reel to bedknife clearance.

Check for failed reel bearings.

522917.15

Motor current over limit

Check reel to bedknife clearance.

Check for failed reel bearings.

522917.16

Motor current over limit

Check reel to bedknife clearance.

Check for failed reel bearings.

522918.00

Motor Failed To Start

Check reel for obstruction.

Check reel to bedknife clearance.

Check for failed reel bearings.

522918.02

Motor Spin Direction Shutdown

Check reel for obstruction.

Check reel, bedknife, attachment for damage

522918.15

Motor Stalled While Running

Check reel for obstruction.

Check reel to bedknife clearance.

Check for failed reel bearings.

522919.03

Motor position sensor error while running

Check low current wires and connections to motor.

522919.12

Motor position sensor error at start

Check low current wires and connections to motor.

523666.00

Alternator output above 48 V

Check wiring and connections.

Check 48 V alternator voltage regulator (See technical manual or John Deere dealer.)

523666.01

Alternator output below 20 V when running

Verify mow engine RPM is set correctly.

523666.02

Alternator output below 20 V at start

Verify mow engine RPM is set correctly.

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