Cummins ISB CM850 (2003-06) Fault Code: 148 PID: 91 SPN: FMI: 0 Accelerator Pedal or Lever Position Sensor 1 – Data Valid but Above Normal Operational Range – Most Severe Level. A frequency of more than 1500 Hz has been detected at the frequency throttle input to the ECM.
Cummins ISB CM850 (2003-06) Fault Code: 148 PID: 91 SPN: FMI: 0 Accelerator Pedal or Lever Position Sensor 1 – Data Valid but Above Normal Operational Range – Most Severe Level. A frequency of more than 1500 Hz has been detected at the frequency throttle input to the ECM.
The frequency throttle can be used in conjunction with a voltage throttle or by itself.
Possible causes:
1)Malfunctioning OEM Frequency Throttle
2)Shorted signal wire to voltage source.
Possible repairs:
1)Repair or replace the frequency throttle.
2)Replace the OEM harness.
Categories Cumminz, ISB CM850 (2003-06)
Tags 0, 06, 1, 148, 1500, 2003, 91, A, Above, Accelerator, at, been, But, CM850, Code, Cummins, Data, Detected, ECM., Fault, FMI, Frequency, has, Hz, Input, ISB, Level, Lever, more, Most, Normal, of, Operational, or, Pedal, PID, Position, Range, Sensor, Severe, SPN, than, the, Throttle, to, Valid
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