This error code, ECU 000102.04, indicates that the input voltage at the manifold air pressure sensor has fallen below the expected range, suggesting a short to ground. This fault can lead to inaccurate air pressure measurement, which is vital for the engine’s air/fuel mixture and overall performance.

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The error code ECU 000102.03 signifies that the input voltage at the manifold air pressure sensor is excessively high, beyond the normal specifications. This condition often points to a potential short circuit to a 12-volt source. Such a voltage discrepancy can adversely affect the sensor’s ability to accurately measure air pressure in the intake manifold,…

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The ECU 000102.02 (102.02) error code is triggered when the engine control unit (ECU) receives invalid pressure information from the manifold air pressure sensor on John Deere equipment. This malfunction indicates that the data being transmitted by the sensor does not accurately reflect the actual intake manifold pressures, which could be due to sensor faults,…

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The ECU 000101.16 (101.16) error code indicates that the crankcase pressure within a John Deere engine is registering as moderately high. This condition can signal the early stages of issues that may lead to more serious engine problems, such as worn piston rings, excessive blow-by, or a blocked crankcase ventilation system. Proper diagnostic procedures as…

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The ECU 000101.06 (101.06) error code alerts that the engine crankcase pressure sensor signal is abnormally high, suggesting a short to 12 volts within the sensor’s circuit on John Deere equipment. This fault indicates an electrical issue that causes the sensor to output excessively high values, which do not accurately represent the actual crankcase pressure.…

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The ECU 000101.04 (101.04) error code indicates that the crankcase pressure sensor signal on John Deere equipment is unexpectedly low, pointing to a potential short to ground in the sensor’s circuit. This electrical fault can cause the sensor to transmit inaccurately low pressure readings, which may not reflect the actual conditions within the engine’s crankcase.…

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The ECU 000101.03 (101.03) error code on John Deere equipment indicates that the crankcase pressure sensor signal is abnormally high, suggesting a short to 12 volts in the sensor’s circuit. This electrical fault may distort the actual crankcase pressure readings, leading to incorrect engine management decisions. Accurate diagnostics are crucial, and referring to the relevant…

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The ECU 000101.00 (101.00) error code signals that the crankcase pressure in a John Deere engine is registering as extremely high, a condition that can indicate serious internal engine problems such as worn piston rings, blocked crankcase ventilation, or other failures leading to excessive pressure build-up. This abnormal pressure can lead to oil leaks, reduced…

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The ECU 000100.31 (100.31) error code occurs when the engine control unit (ECU) of a John Deere machine registers an oil pressure reading when the engine speed is at 0 rpm, which typically should not happen as oil pressure is generated by the running engine. This could indicate a malfunction of the oil pressure sensor…

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The ECU 000100.18 (100.18) error code indicates that the engine oil pressure in John Deere equipment is registering moderately below the expected level. This condition could be a result of various factors, including low oil levels, worn engine components such as bearings or the oil pump, or a clogged oil filter. Moderately low oil pressure,…

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The ECU 000100.04 (100.04) error code on John Deere equipment is indicative of an issue where the engine oil pressure sensor’s input voltage falls below the specified low sensor voltage threshold. This typically signals a short to ground. In systems with an oil pressure sensor, this low voltage may affect the sensor’s ability to accurately…

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