The ECU 000029.04 (29.04) error code indicates that the secondary throttle signal 3 on John Deere equipment is below the low voltage threshold for this sensor. Causes can include a faulty throttle sensor, degraded wiring, or poor electrical connections that result in a reduced voltage signal.

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The ECU 000029.03 (29.03) error code signals that the secondary throttle signal 3 on John Deere machinery exceeds the high voltage threshold specified for this sensor. This abnormal high voltage can be indicative of issues such as electrical interference, a malfunctioning throttle sensor, or a fault within the wiring or connections that artificially elevates the…

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The ECU 000028.04 (28.04) error code indicates that the primary analog throttle signal on John Deere machinery is below the low voltage specifications set for the foot throttle sensor. This situation usually occurs due to issues such as a faulty throttle sensor, poor electrical connections, or a broken wire that can lead to a drop…

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The ECU 000028.03 (28.03) error code on John Deere equipment highlights an issue where the primary analog throttle signal exceeds the high voltage specifications expected by the foot throttle sensor. This could indicate a fault in the throttle sensor, wiring errors, or electronic noise influencing the signal. Such a high signal can result in unexpected…

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The ECU 000028.01 (28.01) error indicates that the primary analog throttle signal is significantly lower than expected, as measured by the foot throttle sensor on John Deere equipment. This condition may stem from a malfunction in the throttle sensor, wiring issues, or an improperly calibrated sensor. A low signal can lead to insufficient engine response…

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The ECU 000028.00 (28.00) error code in John Deere equipment signals an issue where the primary analog throttle signal is recorded as extremely high, although paradoxically, the foot throttle sensor signal is much lower than expected. This discrepancy could be due to a faulty throttle sensor, incorrect wiring, or an issue within the engine control…

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The ECU 000027.07 (27.07) error code on John Deere machinery indicates a fault in the Exhaust Gas Recirculation (EGR) valve actuator. This error arises when there is a mismatch between the desired and actual positions of the EGR valve actuator. Such discrepancies can result from mechanical failures within the actuator, sensor errors, or software issues…

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The ECU 000027.04 (27.04) error code on John Deere equipment is associated with the Exhaust Gas Recirculation (EGR) valve position signal being below the lower acceptable limit. This typically indicates a short to ground within the valve’s electrical circuit. A short to ground may be caused by issues such as exposed wiring, corroded connectors, or…

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The ECU 000027.03 (27.03) error code on John Deere equipment indicates an issue where the Exhaust Gas Recirculation (EGR) valve position signal exceeds the upper acceptable range. This condition is typically caused by a short to 12 volts within the valve’s electrical circuit. Such a short may result from damaged wire insulation, contact oxidation, or…

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