The ECU 000094.04 (94.04) error code on John Deere equipment signals that the low-pressure fuel system signal is lower than expected, typically indicative of a short to ground. This condition could be caused by issues such as a grounding fault in the wiring, a damaged sensor, or faulty electrical connections. A low signal may result…

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The ECU 000094.03 (94.03) error code on John Deere equipment indicates that the low-pressure fuel system signal is higher than expected, typically signaling a short to 12 volts. This condition can occur due to issues like damaged wiring, faulty connections, or a malfunction within the fuel sensor itself, causing the signal to exceed normal parameters…

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The ECU 000091.15 (91.15) error indicates that the primary analog throttle signal from the foot throttle sensor is unavailable, which could be due to sensor failure, disconnection, or a critical fault in the sensor’s circuitry.

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The ECU 000091.04 (91.04) error code indicates that the primary analog throttle signal on John Deere machinery is below the low voltage specification for the foot throttle sensor. This under-voltage could result from a faulty sensor, poor wiring, or a disconnection, potentially leading to inadequate throttle response or engine underperformance.

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The ECU 000091.03 (91.03) error code on John Deere equipment indicates that the primary analog throttle signal is higher than the high voltage specification set for the foot throttle sensor. This overvoltage situation can be caused by issues such as sensor faults, wiring problems, or electronic interference, leading to erratic throttle behavior or unintended acceleration.

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The ECU 000084.31 (84.31) error code identifies a communication problem on John Deere equipment involving the CAN BUS message regarding wheel speed, transmitted from the Brake Control Unit (BCU) to the Engine Control Unit (ECU). The issue arises due to intermittent or nonexistent reception of one or more CAN messages, potentially caused by a loose…

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The ECU 000051.14 (51.14) error code on John Deere machinery indicates a configuration error where the connectors for the air throttle actuator and the Exhaust Gas Recirculation (EGR) valve have been swapped. This misconnection leads to improper communication and control signals between the engine control unit (ECU) and these components, potentially causing incorrect operation or…

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The ECU 000051.07 (51.07) error code indicates a fault in the air throttle actuator on John Deere equipment, characterized by a mismatch between the desired and actual positions of the actuator. This discrepancy suggests issues such as sensor malfunctions, mechanical binding within the actuator, or control software errors that misinterpret the actuator’s position.

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The ECU 000051.04 (51.04) error code reflects that the air throttle actuator position signal on John Deere equipment is below the expected range, typically indicating a short to ground. This fault often arises from issues such as damaged wiring, a grounded wire due to insulation wear, or a defect in the actuator itself, leading to…

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The ECU 000051.03 (51.03) error code indicates that the air throttle actuator position signal on John Deere equipment is out of the high range, typically due to a short to 12 volts. This fault suggests a potential wiring issue or electrical fault within the throttle actuator circuit, where the voltage exceeds the normal operational range,…

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The ECU 000029.08 (29.08) error code is triggered when the secondary throttle signal 2 is found to be abnormal in John Deere machinery. This condition suggests that the signal deviates significantly from expected parameters, potentially due to sensor failure, incorrect sensor calibration, or electrical issues in the wiring.

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