Troubleshooting Guide for Common DTC's

Below 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.

DTC Code

DTC Description

Possible Solution

70.14

Park Brake Off, Start On

Depress parking brake to start machine.

100.1

Engine Oil Pressure Low

Verify oil level and type in engine crankcase is correct.

110.0

Engine Coolant Temperature High

Verify engine coolant level is correct in radiator and overflow bottle.

168.16

Battery Voltage High

Check voltage, test alternator.

168.18

Battery Voltage Low

Check voltage, test battery and alternator.

677.4

Starter Relay-Short to Ground

Check electrical connectors in start circuit for moisture. Verify no exposed wires are shorting out.

677.14

Crank Time Exceeded

Crank time of engine should not exceed 30 seconds.

677.31

Starter Cool Down

Allow starter to cool down for several minutes.

920.3

Buzzer-Short to High Side

Check electrical system.

920.4

Buzzer-Short to Ground

Check electrical system.

931.3

Fuel Pump-Short to High

Check electrical system.

931.4

Fuel Pump-Short to Ground

Check electrical system.

1504.31

PTO On-Operator Not In Seat

Operator must remain in seat. Turn off PTO, restart machine with operator remaining in seat.

1638.0

Hydraulic Oil Temperature High

Investigate for debris on radiator oil cooler. Allow engine to run so hydraulic oil is being circulated through cooling system.

3695.14

Filter Cleaning Required

Verify machine Filter status is in Auto Mode. Check DPF level and clean filter using parked regeneration if required.

3702.01

Parked Regeneration Stopped

Verify regeneration should be stopped. If needed restart regeneration.

3720.16

Ash Clean Required

Carry out parked regeneration. Contact dealer if DTC persists after regeneration.

3719.00

Service Required

Contact John Deere dealer service organization.

3719.16

Parked Cleaning Required

Carry out parked regeneration. Contact dealer if DTC persists after regeneration.

3941.14

PTO On-Seat On

This is a Pop Up … not a REAL DTC.

3941.31

PTO On-Parking Brake On

Release parking brake if intent is to use machine to mow, etc.

516124.3

Engine Run Request-Short to High

Check electrical system.

516124.4

Engine Run Request-Short to Ground

Check electrical system.

OUMX068,00007D2-19-20140529