John Deere fault codes John Deere error - Page 51 of 349 - John Deere News & Innovations: Equipment, Technology, Solutions

John Deere fault codes

TEC 000630.02 – Control Unit Internal Fault
John Deere error TEC codes
This error code, TEC 000630.02, is triggered when an incorrect entry is detected in the internal memory of the TEC control unit. This can be caused by data corruption, memory faults, or software errors within the control unit.
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TEC 000629.12 – Control Unit Internal Fault
John Deere error TEC codes
This error code, TEC 000629.12, indicates that an internal fault has occurred within the TEC control unit. This fault can be due to various issues, including hardware malfunction, software errors, or communication problems within the control unit.
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TEC 000628.12 – Control Unit Internal Fault
John Deere error TEC codes
This error code, TEC 000628.12, indicates that the control unit has switched to an incorrect mode, specifically to a boot mode, which is an internal fault. This situation typically arises due to a malfunction within the control unit’s software or hardware that causes it to exit its normal operating mode.
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TCU 600006.31 – Diagnostic Trouble Code Not Known
John Deere error TCU codes
This diagnostic trouble code (TCU 600006.31) is triggered by the CommandCenter (DTI) when the DTI receives a TCU diagnostic trouble code via the CAN BUS that is not stored in the DTI memory. This “general” diagnostic trouble code enables the CommandCenter (DTI) to display information relating to this unknown TCU diagnostic trouble code.
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TCU 524233.08 – B62 Sensor for Hydrostatic Speed, Speed in Channel 1 Lower than in Channel 2
John Deere error TCU codes
This diagnostic trouble code (TCU 524233.08) is generated if a difference in frequency is detected between the two sensor output signals for hydrostatic speed. This indicates that the speed in channel 1 is lower than in channel 2, suggesting a potential issue with the B62 sensor or its circuitry.
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TCU 524233.04 – B62 Hydrostatic Speed Sensor, Voltage in Channel 1 Too Low
John Deere error TCU codes
This diagnostic trouble code (TCU 524233.04) is generated if the control unit detects that the voltage at the signal input from channel 1 of the hydrostatic speed sensor (B62, lead 6089) is too low. This indicates a short to ground in the sensor circuit.
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TCU 524233.03 – B62 Hydrostatic Speed Sensor, Voltage in Channel 1 Too High
John Deere error TCU codes
This diagnostic trouble code (TCU 524233.03) is generated if the control unit detects that the voltage at the signal input from channel 1 of the hydrostatic speed sensor (B62, lead 6089) is too high. This indicates that the sensor’s circuit is open or shorted to a positive lead. If diagnostic trouble code TCU 523917.03 is…
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TCU 524227.12 – Filter ByPass Valve (Coldweather Starting) is Opened by Mistake
John Deere error TCU codes
This diagnostic trouble code (TCU 524227.12) is generated if the filter bypass valve (coldweather starting) is open while transmission input speed (engine speed) is above 1400 rpm and transmission oil temperature exceeds +30°C (86°F). If diagnostic trouble code TCU 000127.01 is also stored, process this code first.
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TCU 524227.07 – Filter ByPass Valve (Coldweather Starting) is Closed by Mistake
John Deere error TCU codes
This diagnostic trouble code (TCU 524227.07) is generated if the filter bypass valve (for coldweather starting) is closed under the following conditions: Transmission input speed (engine speed) is over 1400 rpm and transmission oil temperature is below 5°C (23°F). Engine OFF. The diagnostic trouble code triggers the alarm level: “Information”.
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TCU 524218.31 – Power Zero Signal is Transmitted by the UIC for Too Long
John Deere error TCU codes
This diagnostic trouble code (TCU 524218.31) is generated when the control unit receives the power zero signal from the UIC via the CAN BUS for more than 5 minutes. This indicates a potential issue with the power zero signal transmission.
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TCU 524218.12 – Park Lock Engaged during Power Zero
John Deere error TCU codes
This diagnostic trouble code (TCU 524218.12) is generated if the control unit detects that the park lock is engaged, even though Power Zero is commanded by the UIC control unit at the same time.
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John Deere News & Innovations: Equipment, Technology, Solutions

John Deere fault codes

TEC 000630.02 – Control Unit Internal Fault

TEC 000629.12 – Control Unit Internal Fault

TEC 000628.12 – Control Unit Internal Fault

TCU 600006.31 – Diagnostic Trouble Code Not Known

TCU 524233.08 – B62 Sensor for Hydrostatic Speed, Speed in Channel 1 Lower than in Channel 2

TCU 524233.04 – B62 Hydrostatic Speed Sensor, Voltage in Channel 1 Too Low

TCU 524233.03 – B62 Hydrostatic Speed Sensor, Voltage in Channel 1 Too High

TCU 524227.12 – Filter ByPass Valve (Coldweather Starting) is Opened by Mistake

TCU 524227.07 – Filter ByPass Valve (Coldweather Starting) is Closed by Mistake

TCU 524218.31 – Power Zero Signal is Transmitted by the UIC for Too Long

TCU 524218.12 – Park Lock Engaged during Power Zero

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