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.
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|
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. |