The SPN 91 FMI 14 fault code indicates a '2-Channel Accelerator Pedal Not Learned' condition in a diesel engine. This diagnostic trouble code (DTC) is triggered when the Engine Control Module (ECM) detects that the accelerator pedal position sensor has not been properly calibrated. This fault can affect the throttle control system's ability to accurately interpret driver input.What SPN 91 FMI 14 M
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The SPN 91 FMI 13 fault code indicates a communication issue where the J1939 EEC2 message is missing or not available. This diesel engine fault code suggests that the Engine Control Module (ECM) is not receiving the necessary data from the J1939 data link, which is crucial for engine management and diagnostics.
What SPN 91 FMI 13 Means
SPN 91 FMI 13 fault code is related to the J1939 communicatio
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The SPN 91 FMI 10 fault code indicates a throttle pedal rationality check failure in a diesel engine. This diagnostic trouble code suggests that the Engine Control Module (ECM) has detected an inconsistency in the throttle pedal position sensor's signal, which is crucial for accurate engine throttle control.What SPN 91 FMI 10 MeansThe SPN 91 FMI 10 fault code is triggered when the ECM identifies a
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The SPN 91 FMI 8 fault code is a diesel engine diagnostic trouble code indicating that the 2-channel accelerator pedal signal 1 is missing. This code is triggered when the Engine Control Module (ECM) detects a loss of signal from the accelerator pedal position sensor, which is crucial for controlling engine speed and power.What SPN 91 FMI 8 MeansThe SPN 91 FMI 8 fault code specifically refers to a
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The SPN 91 FMI 7 fault code is a diesel engine diagnostic trouble code indicating that the Engine Control Module (ECM) is unable to recognize the idle position of the accelerator pedal. This typically involves the accelerator pedal position sensor, which is crucial for communicating the pedal's position to the ECM.What SPN 91 FMI 7 MeansWhen the SPN 91 FMI 7 fault code appears, it signifies an iss
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The SPN 91 FMI 4 fault code is a diesel engine diagnostic trouble code indicating an issue with the accelerator pedal circuit, specifically that the circuit has failed low. This means the Engine Control Module (ECM) is detecting a lower than expected voltage signal from the accelerator pedal position sensor, which can affect engine performance.
What SPN 91 FMI 4 Means
The SPN 91 FMI 4 fault code
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The SPN 91 FMI 2 fault code is a diesel engine fault code indicating an Accelerator Pedal Learn Error. This diagnostic trouble code suggests that the ECM has detected an issue with the accelerator pedal position sensor's ability to learn or calibrate its position correctly. This can affect throttle control and engine performance.
What SPN 91 FMI 2 Means
The SPN 91 FMI 2 fault code represents an e
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The SPN 91 FMI 0 fault code is a diesel engine fault code indicating an issue with the accelerator pedal circuit, specifically that the circuit has failed high. This diagnostic trouble code suggests that the Engine Control Module (ECM) is detecting a higher than expected voltage signal from the accelerator pedal position sensor.
What SPN 91 FMI 0 Means
The SPN 91 FMI 0 fault code represents a pro
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The SPN 84 FMI 21 fault code is a diagnostic trouble code indicating a vehicle speed failure in diesel engines. This code is triggered when the Engine Control Module (ECM) detects an issue with the Vehicle Speed Sensor (VSS) system, which is responsible for providing accurate speed data to the ECM. When this fault code is active, it suggests that the ECM is not receiving a reliable speed signal, w
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The SPN 84 FMI 20 fault code is a diesel engine diagnostic trouble code indicating a Vehicle Speed Sensor (VSS) drifted high error, meaning the VSS signal is not plausible. This code is triggered when the Engine Control Module (ECM) detects an unexpected or inconsistent signal from the VSS, which is crucial for accurate speed readings.
What SPN 84 FMI 20 Means
SPN 84 FMI 20 specifically relates t
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