The SPN 974 FMI 4 fault code is a diesel engine diagnostic trouble code indicating a 'Remote Accelerator Pedal Circuit Failed Low' condition. This code suggests that the Engine Control Module (ECM) has detected a low voltage signal from the accelerator pedal position sensor, which is crucial for controlling engine speed and throttle response.What SPN 974 FMI 4 MeansWhen the SPN 974 FMI 4 fault cod
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The SPN 974 FMI 3 fault code is a diesel engine diagnostic trouble code indicating a 'Remote Accelerator Pedal Circuit Failed High' condition. This code suggests that the Engine Control Module (ECM) has detected a higher than expected voltage in the remote accelerator pedal circuit, which could affect throttle response and engine performance. What SPN 974 FMI 3 Means The SPN 974 FMI 3 fault code s
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The SPN 974 FMI 2 fault code indicates that the remote accelerator pedal supply voltage is out of range. This diesel engine fault code suggests an issue with the electrical signal from the accelerator pedal position sensor to the ECM (Engine Control Module). When the ECM detects a voltage outside the expected range, it triggers this diagnostic trouble code.
What SPN 974 FMI 2 Means
The SPN 974 FM
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The SPN 973 FMI 19 fault code is a diesel engine fault code that indicates an erratic signal from the J1939 engine retarder selection. This diagnostic trouble code suggests that the Engine Control Module (ECM) is receiving inconsistent or unexpected signals from the engine retarder system, which could affect the vehicle's braking performance.
What SPN 973 FMI 19 Means
SPN 973 FMI 19 represents an
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The SPN 973 FMI 13 fault code indicates a missing or unavailable J1939 engine retarder selection signal. This diesel engine fault code suggests that the Engine Control Module (ECM) is not receiving the necessary signal from the engine retarder system, which is crucial for controlling engine braking functions. What SPN 973 FMI 13 Means The SPN 973 FMI 13 fault code signifies an issue with the commu
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The SPN 973 FMI 9 fault code is a diesel engine diagnostic trouble code indicating a missing J1939 EBC1 message. This code suggests that the Electronic Control Module (ECM) is not receiving the expected data from the Electronic Brake Control (EBC) system, which can affect vehicle safety and performance.What SPN 973 FMI 9 MeansWhen the SPN 973 FMI 9 fault code appears, it means the ECM has detected
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The SPN 973 FMI 2 fault code indicates a problem with the plausibility of the retarder lever position in Evobus systems. This diesel engine fault code suggests that the Engine Control Module (ECM) is receiving an implausible signal from the retarder lever position sensor, which could affect the retarder control system's operation.What SPN 973 FMI 2 MeansThe SPN 973 FMI 2 fault code specifically re
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The SPN 972 FMI 2 fault code indicates a problem with the throttle inhibit switch signal, specifically that it is not plausible due to excess vehicle speed. This diesel engine fault code suggests that the Engine Control Module (ECM) is receiving a signal from the throttle inhibit switch that doesn't align with the current vehicle speed, potentially leading to operational issues. What SPN 972 FMI 2
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The SPN 970 FMI 4 fault code is a diesel engine fault code indicating that the Engine Auxiliary Shutdown Input has failed low. This diagnostic trouble code suggests that the ECM has detected a low voltage condition in the engine shutdown circuit, which could prevent the engine from shutting down properly when required.What SPN 970 FMI 4 MeansWhen the SPN 970 FMI 4 fault code is active, it means th
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The SPN 970 FMI 3 fault code is a diesel engine fault code indicating that the Engine Auxiliary Shutdown Input has failed high. This diagnostic trouble code suggests that the ECM is detecting a higher than expected voltage in the auxiliary shutdown circuit, which could prevent the engine from shutting down as intended. What SPN 970 FMI 3 Means The SPN 970 FMI 3 fault code specifically points to an
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