John Deere Fault Codes List & Cause

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 John Deere Fault Codes: A Comprehensive Guide

John Deere machines use a variety of fault codes to indicate problems with the engine, transmission, hydraulics, and other systems. These codes can be used to troubleshoot problems and identify the need for repairs.

This guide provides a comprehensive list of John Deere fault codes, along with their causes and symptoms. It also includes tips on how to troubleshoot and repair problems related to these codes.

https://amadas.com/wp-content/uploads/2019/10/9970diagnostics.pdf

Control Unit

SPN

FMI

Priority

Description

ECU

91

09

Information

CAN Bus message containing throttle input not valid or not received.

ECU

94

01

Stop

Fuel pressure too low – most severe level.

ECU

94

03

Warning

Fuel pressure sensor voltage out of range high.

ECU

94

04

Warning

Fuel pressure sensor voltage out of range low.

ECU

94

16

Warning

Fuel pressure too high – moderately severe level.

ECU

94

17

Warning

Fuel pressure too low – least severe level.

ECU

94

18

Warning

Fuel pressure too low – moderately severe level.

ECU

97

03

Warning

Water in fuel sensor voltage out of range high.

ECU

97

04

Warning

Water in fuel sensor voltage out of range low.

ECU

97

16

Stop

Water detected in fuel.

ECU

100

01

Stop

Oil pressure low – most severe level.

ECU

100

03

Warning

Oil pressure sensor (cc# 5467) voltage out of range high.

ECU

100

04

Warning

Oil pressure sensor (cc# 5467) voltage out of range low.

ECU

100

18

Warning

Oil pressure low – moderately severe level.

ECU

100

31

Warning

Oil pressure detected at zero engine speed.

ECU

102

02

Warning

Predicted boost pressure and measured boost pressure mismatch.

ECU

102

03

Warning

Manifold air pressure sensor (cc# 5468) voltage out of range high.

ECU

102

04

Warning

Manifold air pressure sensor (cc# 5468) voltage out of range low.

ECU

103

00

Warning

Turbocharger speed sensor (cc# 5435) speed too high – most severe level.

ECU

103

02

Warning

Turbocharger speed sensor (cc# 5435) speed incorrect. Predicted speed and measured speed mismatch.

ECU

103

05

Warning

Open circuit detected in turbocharger speed sensor (cc# 5435).

ECU

103

06

Warning

Short circuit detected in turbocharger speed sensor (cc# 5435).

ECU

103

08

Warning

Turbocharger speed sensor (cc# 5435) speed incorrect.

ECU

103

31

Warning

Turbocharger speed sensor (cc# 5435) input missing.

ECU

105

00

Stop

Engine manifold air temperature too high – most severe level. Maximum power level is derated.

Power boost is disabled.

ECU

105

03

Warning

Engine manifold air temperature sensor voltage is out of range high.

ECU

105

04

Warning

Engine manifold air temperature sensor voltage is out of range low.

ECU

105

15

Warning

Engine manifold air temperature too high – least severe level.

ECU

105

16

Warning

Engine manifold air temperature too high – moderately severe level. Maximum power level is derated. Power boost is disabled.

ECU

107

00

Warning

Air filter restricted switch indicates a plugged air filter.

ECU

108

02

Warning

Barometric pressure invalid.

ECU

110

00

Stop

Engine coolant temperature too high – most severe level. Maximum power level is derated. Power boost is disabled.

ECU

110

03

Warning

Engine coolant temperature sensor voltage is out of range high.

ECU

110

04

Warning

Engine coolant temperature sensor voltage is out of range low.

Control Unit

SPN

FMI

Priority

Description

ECU

110

15

Warning

Engine coolant temperature too high – least severe level. Maximum power level is derated. Power boost is disabled.

ECU

110

16

Warning

Engine coolant temperature too high – moderately severe level. Maximum power level is derated.

Power boost is disabled.

ECU

110

17

Warning

Engine coolant temperature too low – least severe level.

ECU

157

01

Stop

Fuel pressure low – most severe level. (6135)

ECU

157

03

Stop

Rail pressure sensor (cc# 5475) voltage out of range high. (6068, 6090)

ECU

157

03

Warning

Rail pressure sensor (cc# 5469) voltage out of range high. (6135)

ECU

157

04

Stop

Rail pressure sensor (cc# 5475) voltage out of range low. (6068, 6090)

ECU

157

04

Warning

Fuel pressure sensor (cc# 5469) voltage out of range low. (6135)

ECU

157

10

Warning

Rail pressure (cc# 5475) drops too fast when

engine is motoring and high pressure pump is off. (6068, 6090)

ECU

157

16

Warning

Fuel pressure high – moderately severe level. (6135)

ECU

157

17

Warning

Rail pressure (cc# 5475) is below 10 mPa during starting. (6068, 6090)

ECU

157

18

Warning

Fuel pressure low – moderately severe level. (6135)

ECU

158

17

Warning

Controller not powered down properly. Battery voltage does not go to 0 VDC.

ECU

174

00

Warning

Engine fuel temperature high – most severe level.

ECU

174

03

Warning

Engine fuel temperature sensor voltage is out of range high.

ECU

174

04

Warning

Engine fuel temperature sensor voltage is out of range low.

ECU

174

16

Warning

Engine fuel temperature too high – moderately severe level.

ECU

189

00

Stop

Engine speed derated.

ECU

412

00

Stop

Exhaust temperature high – most severe level.

ECU

412

03

Warning

Exhaust temperature out of range high.

ECU

412

04

Warning

Exhaust temperature out of range low.

ECU

412

15

Warning

Exhaust temperature high – least severe level.

ECU

412

16

Stop

Exhaust temperature high – moderately severe level.

ECU

611

03

Stop

The injector driver has detected a short to voltage in the injector wiring.

ECU

611

04

Stop

The injector driver has detected a short to ground in the injector wiring.

ECU

627

01

Warning

Injector pull-in current too low or hold current incorrect.

ECU

627

18

Warning

Low voltage.

ECU

629

13

Stop

Control unit ECU has not been programmed.

ECU

636

02

Warning

Electrical noise is detected on the engine position signal (cc# 5445).

ECU

636

05

Warning

Engine position signal (cc# 5445) current too low.

ECU

636

06

Warning

Engine position signal (cc# 5445) current too high.

ECU

636

08

Warning

Engine position signal (cc# 5445) signal is missing.

ECU

636

10

Warning

Engine position signal (cc# 5445) signal has incorrect pulse pattern.

Control Unit

SPN

FMI

Priority

Description

ECU

637

02

Warning

Electrical noise detected on the engine timing signal (cc# 5447).

ECU

637

05

Warning

Engine timing signal (cc# 5447) current too low.

ECU

637

06

Warning

Engine timing signal (cc# 5447) current too high.

ECU

637

07

Warning

Position relationship between engine timing signal (cc# 5447) and engine position signal (cc# 5445) not correct.

ECU

637

08

Warning

Engine timing signal (cc# 5447) signal is missing.

ECU

637

10

Warning

Engine timing signal (cc# 5447) signal has incorrect pulse pattern.

ECU

641

04

Warning

Turbocharger actuator had to be power cycled too many times due to actuation or learn failures.

ECU

641

05

Warning

Turbocharger actuator current too low.

ECU

641

12

Warning

Loss of communication between the turbocharger controller and control unit ECU.

ECU

641

13

Warning

Turbocharger learn error.

ECU

641

16

Warning

Turbocharger temperature too high – moderately severe level.

ECU

651

02

Stop

Injector #1 part number invalid.

ECU

651

05

Warning

Current to injector #1 is less than expected.

ECU

651

06

Warning

Current to injector #1 increases too rapidly.

ECU

651

07

Warning

The fuel flow to cylinder #1 is lower than expected.

ECU

651

13

Warning

Injector #1 part number is correct but calibration string is not what is expected.

ECU

652

02

Stop

Injector #2 part number invalid.

ECU

652

05

Warning

The current to injector #2 is less than expected.

ECU

652

06

Warning

The current to injector #2 increases too rapidly.

ECU

652

07

Warning

The fuel flow to cylinder #2 is lower than expected.

ECU

652

13

Warning

Injector #2 part number is correct but calibration string is not what is expected.

ECU

653

02

Stop

Injector #3 part number invalid.

ECU

653

05

Warning

The current to injector #3 is less than expected.

ECU

653

06

Warning

The current to injector #3 increases too rapidly.

ECU

653

07

Warning

The fuel flow to cylinder #3 is lower than expected.

ECU

653

13

Warning

Injector #3 part number is correct but calibration string is not what is expected.

ECU

654

02

Stop

Injector #4 part number invalid.

ECU

654

05

Warning

The current to injector #4 is less than expected.

ECU

654

06

Warning

The current to injector #4 increases too rapidly.

ECU

654

07

Warning

The fuel flow to cylinder #4 is lower than expected.

ECU

654

13

Warning

Injector #4 part number is correct but calibration string is not what is expected.

ECU

655

02

Stop

Injector #5 part number invalid.

ECU

655

05

Warning

The current to injector #5 is less than expected.

ECU

655

06

Warning

The current to injector #5 increases too rapidly.

ECU

655

07

Warning

The fuel flow to cylinder #5 is lower than expected.

Control Unit

SPN

FMI

Priority

Description

ECU

655

13

Warning

Injector #5 part number is correct but calibration string is not what is expected.

ECU

656

02

Stop

Injector #6 part number invalid.

ECU

656

05

Warning

The current to injector #6 is less than expected.

ECU

656

06

Warning

The current to injector #6 increases too rapidly.

ECU

656

07

Warning

The fuel flow to cylinder #6 is lower than expected.

ECU

656

13

Warning

Injector #6 part number is correct but calibration string is not what is expected.

ECU

676

03

Warning

Glow plug relay stuck on or shorted to power.

ECU

676

05

Warning

Glow plug relay failed or circuit open.

ECU

1075

05

Warning

Electric fuel pump current is too low.

ECU

1075

06

Warning

Electric fuel pump current is too high.

ECU

1075

12

Warning

Electric fuel pump failed.

ECU

1136

00

Stop

Control unit ECU temperature too high – most severe level.

ECU

1136

16

Warning

Control unit ECU temperature too high – moderately severe level.

ECU

1172

03

Warning

Turbocharger compressor inlet temperature (cc# 5516) out of range high.

ECU

1172

04

Warning

Turbocharger compressor inlet temperature (cc# 5516) out of range low.

ECU

1180

00

Stop

Turbocharger turbine inlet temperature too high –

most severe level. This is a value calculated from turbocharger speed.

ECU

1180

16

Warning

Turbocharger turbine inlet temperature too high – moderately severe level. This is a value calculated from turbocharger speed.

ECU

1347

03

Stop

Driver detects problem in circuit to pump solenoid low (cc# 178). Circuit has short to battery voltage. Detected only during harness diagnostics.

ECU

1347

05

Stop

Driver detects problem in circuit to driver high (cc# 5424).

ECU

1347

07

Warning

Rail pressure control is unable to match required rail pressure. It may be either too high or too low.

ECU

1569

31

Warning

Engine protection – power derated due to other

faults. This code occurs in conjunction with other codes that indicate faults.

ECU

2000

13

Stop

Control unit ECU security violation.

ECU

2630

00

Stop

Exhaust gas recirculation fresh air temperature high – most severe level. Engine will derate.

ECU

2630

03

Warning

Exhaust gas recirculation fresh air temperature signal (cc# 5455) out of range high.

ECU

2630

04

Warning

Exhaust gas recirculation fresh air temperature signal (cc# 5455) out of range low.

ECU

2630

15

Warning

Exhaust gas recirculation fresh air temperature high – least severe level

ECU

2630

16

Warning

Exhaust gas recirculation fresh air temperature high – moderately severe level. Engine will derate.

ECU

2659

02

Warning

Exhaust gas recirculation flow/temperature mismatch.

ECU

2791

02

Warning

Exhaust gas recirculation valve position signal (cc# 5425) voltage mismatch.

ECU

2791

03

Warning

Exhaust gas recirculation valve position signal (cc# 5425) out of range high.

ECU

2791

04

Warning

Exhaust gas recirculation valve position signal (cc# 5425) out of range low.

ECU

2791

05

Warning

Exhaust gas recirculation valve position signal (cc# 5425) current below normal.

ECU

2791

06

Warning

Exhaust gas recirculation valve position signal (cc# 5425) current above normal.

ECU

2791

07

Warning

Exhaust gas recirculation valve not responding.

ECU

2791

13

Warning

Exhaust gas recirculation valve out of calibration.

ECU

2791

14

Stop

Exhaust gas recirculation valve turned off.

ECU

2791

31

Warning

Exhaust gas recirculation valve position error.

ECU

2795

07

Warning

Vane position feedback from variable geometry turbocharger is invalid. Engine will derate.

ECU

2795

12

Warning

Controller is unable to obtain variable geometry turbocharger position. Engine will derate.

ECU

3509

03

Stop

Sensor supply voltage #1 out of range high.

ECU

3509

04

Stop

Sensor supply voltage #1 out of range low.

ECU

3510

03

Warning

Sensor supply voltage #2 (cc# 5416) out of range high.

ECU

3510

04

Warning

Sensor supply voltage #2 (cc# 5416) out of range low.

ECU

3511

03

Warning

Sensor supply voltage #3 out of range high.

ECU

3511

04

Warning

Sensor supply voltage #3 out of range low.

ECU

3512

03

Warning

Sensor supply voltage #4 out of range high.

ECU

3512

04

Warning

Sensor supply voltage #4 out of range low.

ECU

3513

03

Warning

Sensor supply voltage #5 (cc# 5511) out of range high.

ECU

3513

04

Warning

Sensor supply voltage #5 (cc# 5511) out of range low.

ECU

3822

02

Warning

Exhaust gas recirculation 2 valve position signal (cc# 5515) voltage mismatch.

ECU

3822

03

Warning

Exhaust gas recirculation 2 valve position signal (cc# 5515) out of range high.

ECU

3822

04

Warning

Exhaust gas recirculation 2 valve position signal (cc# 5515) out of range low.

ECU

3822

05

Warning

Exhaust gas recirculation 2 valve position signal (cc# 5515) current below normal.

Control Unit

SPN

FMI

Priority

Description

ECU

3822

06

Warning

Exhaust gas recirculation 2 valve position signal (cc# 5515) current above normal.

ECU

3822

07

Warning

Exhaust gas recirculation 2 valve not responding.

ECU

3822

13

Warning

Exhaust gas recirculation 2 valve out of calibration.

ECU

3822

14

Stop

Exhaust gas recirculation 2 valve turned off.

ECU

3822

31

Warning

Exhaust gas recirculation 2 valve position error.

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